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 Manco Streaker Mini Bike

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Double W Cross Ranch
TheBeal
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AllisKidD21
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PostSubject: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 28th 2018, 7:37 pm

So I aquired this old mini bike a few days ago for $150 in pretty nice, running, and driving condition:

Manco Streaker Mini Bike 20181042

Manco Streaker Mini Bike 20181043

Nice little bike. Good running 3.5hp Tecumseh 4 stroke engine, the usual centrifugal clutch and chain setup, twist throttle, rear scrub brake with foot pedal, etc.  

Been driving it around alot and man is it ever a blast to cruise around on!

Dropped the oil while it was nice and warm a couple days ago and filled it with sime nice fresh 10w30.

Manco Streaker Mini Bike 20181044

Manco Streaker Mini Bike 20181045

So far all I've done to it is modify the throttle butterfly plate on the carb for some more RPMs, add a return spring for the brake, and change the rear fender setup and add a little mud flap:

Manco Streaker Mini Bike 20181046

Noticed some muck was getting on the engine before, so I figured I'd add some more protection, haha.

Plans for it aren't too crazy, probably gonna have a custom intake and exhaust, maybe make a neat looking chain guard, add a tach between the bars, maybe a headlight, stuff like that. Also if the Teccy ever proves to be insufficient power wise, my Honda G200 flat head might take its place. That'd be a nice upgrade, haha.

Anyways I thought I'd share my new little toy, haha. Let me know what ya think!


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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prancstaman
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 28th 2018, 9:54 pm

Nice little bike. My kid's friends are always asking me to mod the frames of those for bigger motors and fix the forks because they always hit stuff with them. My mini bike has a 3.5 hp Briggs on it and hit 34 eventually tweeking the gov. Strong little motors on the top end of rpm, just sucks starting off.
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MightyRaze
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 28th 2018, 10:59 pm

Nice mini bike man!  Don't forget the crew while you have fun on it.  Very Happy


Manco Streaker Mini Bike Sig110Tractors:
     Dirty Rat....77 Sears Suburban
     Li'L Red......98 Murray Widebody
     Bowser......01 Murray Widebody LT
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 28th 2018, 11:43 pm

Thanks fellas! Yeah the nice thing about swapping that G200 in would be that it would actually bolt right up to the mounting plate and should also fit nice under the upper frame tubing (according to my measurments) , so luckily I wouldn't have to do any frame modifications. I'll probably keep the little Teccy in for a while though as it runs quite well.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 31st 2018, 3:06 pm

I like the mud flap idea a lot to protect the motor.

Those are interesting grips on the footpegs.  I see what I think are finger grooves in them.
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MightyRaze
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 31st 2018, 4:06 pm

HAHA, I saw those grips too. Man I missed the mudflap the first time around.


Manco Streaker Mini Bike Sig110Tractors:
     Dirty Rat....77 Sears Suburban
     Li'L Red......98 Murray Widebody
     Bowser......01 Murray Widebody LT
     Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
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AllisKidD21
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeOctober 31st 2018, 10:15 pm

Thanks fellas, the mud flap thing has proven quite effective since I put it on.

I guess I never payed attention, but I guess the foot peg grips do have little bumps on the bottom sorta like finger grips:

Manco Streaker Mini Bike 20181047

Haha. Not sure what the deal is there, who knows.

Also forgot to mention I'd like to try and make a cooler looking brake pedal possibly, like weld a piece of steel checker plate on it or something. Just another little decorative touch, haha.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 5th 2018, 11:05 pm

When I got this little guy I noticed the clutch liked to slip pretty bad in the tougher terrain, I assumed it was just wore out from use over the years so I took the clutch apart to see:

Manco Streaker Mini Bike 20181113

Manco Streaker Mini Bike 20181114

If you look closely you can see the wear. lol!

Yeah she needs a new centrifugal clutch for sure, but I just sanded it up a bit, oiled the bushing, and it back together for the time being. It'll stand up until I get a new one. It's one of the "Max Torque" clutches too, so I'd like to get one of those same ones, they're a bit under $100 I think which isn't too bad.
I'll see if I can get myself one of those so I can do some trail riding! Haha.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 12:06 am

Well the little mini bike made it down to the farm a couple weeks ago, gonna be nice having all the land to drive it around on now! Haha.

First minor mod I decide to try was a nice simple exhaust pipe.

The muffler bolts actually broke loose real nice and I was able to remove the muffler quite simply:

Manco Streaker Mini Bike 20181115

Had a screen between the outlet and the little bolt on cap.

Manco Streaker Mini Bike 20181116

Pretty plugged up as you can see. That'll never do!

Manco Streaker Mini Bike 20181117

Manco Streaker Mini Bike 20181118

Much better!!

Nothing special obviously, I'm gonna give it some paint tomorrow as well, so it should look pretty neat after that. I used a washer as a flange (mr.mod's idea) and used some thin stuff that I found for the pipe.
It sounds great! Nice and snappy, but not obnoxious. Used to bog pretty bad too, but it doesn't seem to do it at all now, so I bet that plugged up screen was causing some issues.

I also put a different fuel tank on it because the old one leaked pretty bad and I couldn't seem to be able to fix it.

It's actually the old fuel tank from the rat rod, pretty much the same tank so it bolted right up.

Manco Streaker Mini Bike 20181120

I did have to cut a bit off the mount though due to the different fuel filler cap location:

Manco Streaker Mini Bike 20181119

Perfect!

Manco Streaker Mini Bike 20181121

The offset fuel filler is actually a lot easier to get to than the old tank, which is nice.

Manco Streaker Mini Bike 20181122

Nice to have that done. No more leaks! Haha.

So yeah just a couple small things, but I thought I'd share nonetheless. Let me know what ya think!


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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Crazy_Carl
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 9:23 am

So when I had the mini bikes.  I bought a $30 clutch for one and a $100 clutch for the other since it had just the amount of teeth I was looking for.  I didn't really see any huge difference in quality or performance  between the two.  I would get two cheap clutches so you have a new spare on hand.
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 9:37 am

Does that engine have a 4 bolt flange pattern on the case cover? You could ditch the CC for a fancy CVT. That would be cool.
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 11:08 am

Yeah we'll have to see what kinda clutch I end up getting.

Also I'm not sure about the bolt holes for a CVT, but I'll probably keep the ol' centrifugal clutch on this rig, haha.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 12:16 pm

I think a cvt would be nice if you wanna go fast. That engine fits like a glove, lol.
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 1:54 pm

The CVT wouldn't make it any faster really, I could simply swap the rear sprocket for a smaller one to go faster, which I'd like to  maybe try sometime. The CVT would allow for much quicker takeoffs and be better suited for trail riding, but I like the current setup and it works quite well.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 2:02 pm

The cvts are more for torque than speeds, as the pulley setup on them gives steady power in any rpm range, but gives a fairly good speed but still has a good performing off road capability. whereas a clutch would overheat from slippage. the clutches give faster response and do not have an rpm limit like the cvts do.
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 18th 2018, 3:51 pm

Hmm I dunno for certain, but I believe a CVT will give you a higher top speed along with the low end power.
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeNovember 19th 2018, 12:32 am

All this talking in here and not one comment about my super slick high-tech exhaust. lol!

But yeah, probably not going for a CVT on this little guy. Just gonna buy a new clutch for it someday.

I think the next thing I'd like to do is build a little stand for it so I don't have to use a lawn tractor rim:

Manco Streaker Mini Bike 20181140

Hahaha. Probably just try and make something simple out of lumber, that'd probably work pretty good.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeDecember 30th 2018, 10:14 pm

Had a little bit of snow to bomb around in with the mini bike, nothing too crazy but it's kinda fun to slide it around. Haha.

Manco Streaker Mini Bike 20181220

One small thing I did was add a choke control that can be operated from the seat. Usually you gotta drive it for a short distance on half choke when the engine's cold so I figured it'd be nicer to be able to not have to reach under the seat, haha.

Manco Streaker Mini Bike 20181221

Manco Streaker Mini Bike 20181222

Pretty simple obviously, works great though. The mount for the knob looks pretty weird but oh well, haha. Should work pretty good!


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeDecember 31st 2018, 5:16 am

I like the remote choke knob. I hate reaching under the seat on my trike to fumble with the choke.
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeDecember 31st 2018, 10:41 am

Thanks! Haha, yeah it's a lot nicer having a "dash" control.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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AllisKidD21
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeApril 28th 2019, 8:24 pm

Well boys since the nice weather is here, the little Manco Streaker chick magnet is back to cruisin' the means streets!
Well more like gravel roads, but still. Manco Streaker Mini Bike 1098998679

But yeah, I've been bombing this little thing around on a regular basis for the last little while. It sure is a blast!! One thing I finally got around to doing today was giving the exhaust a shot of paint, meant to do it right after I made it, but if course that didn't happen. Haha.

Got it cleaned up with the ol' wire wheel:

Manco Streaker Mini Bike 20190451

Then the paint!

Manco Streaker Mini Bike 20190452

Manco Streaker Mini Bike 20190453

Oh yeeeeaah!! She looks even more like a hot rod now than before! Hahaha.

All joking aside though I think it looks pretty neat, much better than before.

Manco Streaker Mini Bike 20190454

Fun little bike, haha. Let me know what ya think!


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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prancstaman
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeApril 28th 2019, 9:04 pm

How fast will it go? Ever gps it? My mini bike goes about 34 now. Been over a year since I rode mine though.
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AllisKidD21
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeMay 5th 2019, 9:14 pm

It's nothing crazy, tops out at 23mph after I tweaked the governor a little bit to get a few more RPM's. Feels plenty fast on that tiny thing though, hahaha.


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeJune 9th 2019, 11:12 pm

Well me and my cousin have been doing some serious mini bike wheelin' in the last little while, been super fun! Unfortunately the fun was cut short today though when the ol' scrub brake finally caught up with the poor back tire:

Manco Streaker Mini Bike 20190631

Manco Streaker Mini Bike 20190632

Yep, got me a flat. Haha. Been wearing on it for quite some time as you can see!

Got it all tore apart and ready for a new tire though:

Manco Streaker Mini Bike 20190633

Cleaned and re-lubed the bearings too while it was apart, as they were pretty dry sounding.

Gonna buy a new tire for it tomorrow provided I can find one, then it might be time for a brake upgrade! Stay tuned!




"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitimeJune 11th 2019, 11:54 pm

Well it would appear this turned into more than a new rear tire....

Manco Streaker Mini Bike 20190640

Manco Streaker Mini Bike 20190641

Haha, yepper! I figured it was time the ol' Teccy got some love, so I yanked it out and tore it down on the bench.

Got the cylinder head off, doesn't look too bad for the age of the engine:

Manco Streaker Mini Bike 20190642

Next I pulled the valves, since I figured on lapping them and doing some port work:

Manco Streaker Mini Bike 20190643

Then I got myself a mirror and some sandpaper and sanded the head down nice and flat:

Manco Streaker Mini Bike 20190644

I know I won't be taking enough off for much of a performance gain, but it'll help a little.

After sanding it 'til the high spots were gone I set it on the block to test the flatness. I found that was able to rock it maybe 0.001" with my finger so then I used the valve grinding compound to sand the head and the block together:

Manco Streaker Mini Bike 20190645

Turned out nice! Should be good and flat now.

Next came the port work. The stock ports were actually not too bad, so I just did some minor cleaning and made the inner bend a lot wider and smoother to free up some flow.

Before:

Manco Streaker Mini Bike 20190646

After:

Manco Streaker Mini Bike 20190647


Manco Streaker Mini Bike 20190648

Got the valves lapped and got a nice finish on them and the seats on the block:

Manco Streaker Mini Bike 20190649

I also figured on giving the cylinder a good hone, since there was no cross-hatching left and a little bit of scarring.

Before:

Manco Streaker Mini Bike 20190650

After:

Manco Streaker Mini Bike 20190651

Turned out pretty nice! Still just a hair of scarring left, but it shouldn't hurt anything. It's much better than before.

When I had the piston out I also noticed that the top compression ring was siezed:

Manco Streaker Mini Bike 20190652

I'm sure that wasn't helping performance, haha. But I ended up useing some penetrant and a screwdriver to get it freed up and springing nicely again. Then after some cleaning the piston went back in:

Manco Streaker Mini Bike 20190653

Didn't really check clearances like I should have, but the bearing surfaces looked onto be in beautiful shape so I didn't worry about it too much. After I torqued the rod bolts I got the block ready to go back together and put the cover back on:

Manco Streaker Mini Bike 20190654

Looking pretty freshed up!

Manco Streaker Mini Bike 20190655

Put the valves in next. Both springs got shimmed up with some washers:

Manco Streaker Mini Bike 20190656

Shouldn't be too much, I checked them at full lift and the springs aren't being compressed past their limit, so I don't think it will hurt anything.

Here's how she sits as of tonight:

Manco Streaker Mini Bike 20190657

Pretty happy with how things went! Gonna be cool to get it back on the bike and see how it does, haha. Tomorrow I'll get the head put back on with the new gasket, then I'm gonna try a bit of a timing advance to see if I get get a bit of a top end power boost. I'll most likely port the intake manifold a bit too before I put the carb back on.

Gonna be good I'm thinking! Got a new clutch coming for 'er too so hopefully I can put some power to the ground a bit better, haha. Let me know what ya think!


"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford 120, LGT 125 & 145 - White 1650 Yard Boss

      *I have 21 tractors and over 40 chainsaws, I need help*
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PostSubject: Re: Manco Streaker Mini Bike   Manco Streaker Mini Bike Icon_minitime

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