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 Manco Streaker Mini Bike

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AllisKidD21
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PostSubject: Manco Streaker Mini Bike   Sun Oct 28, 2018 7:37 pm

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





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.





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:



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!

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prancstaman
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PostSubject: Re: Manco Streaker Mini Bike   Sun Oct 28, 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   Sun Oct 28, 2018 10:59 pm

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

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PostSubject: Re: Manco Streaker Mini Bike   Sun Oct 28, 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 is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
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PostSubject: Re: Manco Streaker Mini Bike   Wed Oct 31, 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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PostSubject: Re: Manco Streaker Mini Bike   Wed Oct 31, 2018 4:06 pm

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

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PostSubject: Re: Manco Streaker Mini Bike   Wed Oct 31, 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:



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 is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
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PostSubject: Re: Manco Streaker Mini Bike   Mon Nov 05, 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:





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 is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
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- Toro Rat Rod Tractor Build
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AllisKidD21
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PostSubject: Re: Manco Streaker Mini Bike   Sun Nov 18, 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:



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



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





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.



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



Perfect!



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



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 is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
        - M.T.D. Off-Road Build
       
- Toro Rat Rod Tractor Build
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PostSubject: Re: Manco Streaker Mini Bike   Sun Nov 18, 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   Sun Nov 18, 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   Sun Nov 18, 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 is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
        - M.T.D. Off-Road Build
       
- Toro Rat Rod Tractor Build
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PostSubject: Re: Manco Streaker Mini Bike   Sun Nov 18, 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   Sun Nov 18, 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 is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
        - M.T.D. Off-Road Build
       
- Toro Rat Rod Tractor Build
        - Ford LT 110 Off-Road Build
        - Craftsman GT 6000 Off-Road/Workhorse Build
        -John Deere 110 Basic Project
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PostSubject: Re: Manco Streaker Mini Bike   Sun Nov 18, 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   Sun Nov 18, 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   Mon Nov 19, 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:



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

_______________________________________________
"This is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
        - M.T.D. Off-Road Build
       
- Toro Rat Rod Tractor Build
        - Ford LT 110 Off-Road Build
        - Craftsman GT 6000 Off-Road/Workhorse Build
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PostSubject: Re: Manco Streaker Mini Bike   Sun Dec 30, 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.



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.





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

_______________________________________________
"This is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
        - M.T.D. Off-Road Build
       
- Toro Rat Rod Tractor Build
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        - Craftsman GT 6000 Off-Road/Workhorse Build
        -John Deere 110 Basic Project
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PostSubject: Re: Manco Streaker Mini Bike   Mon Dec 31, 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   Mon Dec 31, 2018 10:41 am

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

_______________________________________________
"This is where the thinking came in.... that took a while."- Red Green           "Just took a center punch *Wham!* Oh that's close enough." - TheBeal
                                                                       ----Uploading Pictures----
        - M.T.D. Off-Road Build
       
- Toro Rat Rod Tractor Build
        - Ford LT 110 Off-Road Build
        - Craftsman GT 6000 Off-Road/Workhorse Build
        -John Deere 110 Basic Project
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