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 BAJA SEARS BUILD

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MatthewD
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 19, 2016 1:56 pm

Yeah. Could always take the pull starting bits (which means the crankshaft too) off the 10h and put it on your 11h then you'd have a pull start back up.
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 19, 2016 9:53 pm

Thanks.

I thought of trying to add pull start, but I don't think it would fit with the scatter shield.
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donaldcon
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeWed Jan 20, 2016 9:47 am

I'm just now getting around to reading this entire thread.

It's definitely unique. I like it!

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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeWed Jan 20, 2016 1:53 pm

Thanks.
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MatthewD
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeThu Jan 21, 2016 3:18 pm

@mr.modified wrote:
Thanks.

I thought of trying to add pull start, but I don't think it would fit with the scatter shield.
Good point actually. Forgot about that Very Happy
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Creepycrawler
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeSat Jan 23, 2016 11:38 am

MisterModifed, Have you ever considered a 250x or 300ex carb? there pretty cheap and since your not running the governer anyways should be well within your abilitys to make a intake and jet the carb properly. would add some good punch to the bottom end being a pumper carb also
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 26, 2016 2:28 pm

Actually, I've never heard of them. What brand are they? I think the flooding issue I have on bumps with this carb is due to there being a little too much pressure built up with the fuel pump. I was going to try running a bleed off line from the downstream side of the pump to the upstream side. Just a small line to let off 90% of the fuel pressure, so it would be like running a gravity feed system. It seems to run ok on a flat for the most part. In general it doesn't like full throttle, even when it gets flooded 75% throttle clears it out better than wide open. Wide open makes it cut out. At the moment I'm focusing my efforts on the new build off project which will have a tecumseh side draft on an 8hp flathead briggs. I've had good luck using tecumseh carbs for the most part.
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MatthewD
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 26, 2016 4:56 pm

I think this is the sort of carb 'Creepycrawler' is talking about Mr.mod -
BAJA SEARS BUILD - Page 13 IMG000039549
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STUNTMAN JON
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 26, 2016 7:06 pm

Thats looks like a Molkt carb off a pit bike, i got 2 for a vanny twin I'm spicing up, the little b@sd tractor i run also uses that carb
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 26, 2016 7:25 pm

Like a round slide carb. Might be a good idea at some point.
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STUNTMAN JON
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jan 26, 2016 7:32 pm

yeah thats it, its actually a 2 stroke carb, but is used widely on 4 stroke engines, I've been using them for years with the pit bikes, the AFR mixture screw actually adjusts the air instead of the fuel which is something to watch out for if you ever encounter one!
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Creepycrawler
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeWed Jan 27, 2016 4:27 pm

I like these because of the accelerator pump, I havent tried one on a mower though yet. this is a high priced one, I got mine off ebay last year for 75$ and it had the throttle cable with it
http://www.ebay.com/itm/Honda-TRX-300EX-TRX300EX-300-EX-OEM-Carburetor-Carb-02-/222006310069?hash=item33b09b74b5:g:LPoAAOSwKtlWptJr&vxp=mtr
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Creepycrawler
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeWed Jan 27, 2016 4:41 pm

now here is a cool option Ive never seen before, I might have to try one of these on my gx390 clone, much cheaper, has accel pump and is a cv carb, and even has electric choke, which is kinda cool

http://www.ebay.com/itm/Honda-CH250-Elite-Scooter-Carburetor-Carb-1985-1986-1987-1988-1985-1988-NEW-/121873904906?hash=item1c6040350a:g:n3QAAOSw7NNT8NDc&vxp=mtr
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeWed Jan 27, 2016 8:40 pm

An accelerator pump would be nice.
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeSat Mar 26, 2016 10:06 pm

Carb doesn't seem to be flooding in so bad at this point. Now and then it still loads up, but it seems better. I didn't change anything. I don't know if the viton tip on the needle worked itself in a little or what. I finally fixed the starter and put the new gear on.
BAJA SEARS BUILD - Page 13 IMG_5017_zpsd8a91uke

BAJA SEARS BUILD - Page 13 IMG_5018_zpsvsgvwvok

BAJA SEARS BUILD - Page 13 IMG_5021_zpsd2x6j3bb
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MatthewD
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeSun Mar 27, 2016 9:12 am

Nice to see the old Baja Sears still going!
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeMon Mar 28, 2016 3:59 pm

Oh yeah, still working. Drive belt is about at the end of it's life though. The clutch design doesn't take up much stretch.
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeMon Jun 27, 2016 8:07 pm

Pictures of the Baja Sears at Haspin! Piloted by my dad, the sears ended up on it's side twice. Only minor damage, paint chipped off the rear fenders and the rear bumper took a couple of dings from the D-ring brackets on the front bumper of the simplicity. Drive belt lasted till the last day at haspin when it started slipping quite a bit. The carb flooding was only an issue at higher speeds. I got it set on the lean side to try staying ahead of the extra fuel a bit. Helped somewhat.
BAJA SEARS BUILD - Page 13 Img_5238

At a river bed half a mile down the road from haspin's driveway.
BAJA SEARS BUILD - Page 13 Img_5241

BAJA SEARS BUILD - Page 13 Img_5240

BAJA SEARS BUILD - Page 13 Img_5239

BAJA SEARS BUILD - Page 13 Img_5242

BAJA SEARS BUILD - Page 13 Img_5243
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Doug
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeMon Jun 27, 2016 9:54 pm

When did you guys go to the river bed? Friday?

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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeTue Jun 28, 2016 8:03 pm

I think it was Friday. Not 100% sure. Can't remember if it was after the rain or not. I went out into the stream a little with the simplicity, but the bottom is soft gravel and I didn't want to get buried was out in the middle. Almost like driving through sand. You can only go so far down stream before you run out of land.
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeThu Jul 21, 2016 8:56 pm

Baja Sears in the work shop after Haspin for cleaning and paint touch up. Thinking of finally listing it for sale soon.
BAJA SEARS BUILD - Page 13 Img_5318

Paint scuffed off the galvanized rub rails.
BAJA SEARS BUILD - Page 13 Img_5314

Large areas of paint flaked off the rear fender. Mostly the right fender. Stickers on both fenders we're pretty scratched, peeled this one off. Once I re-paint, I'll put new stickers on.
BAJA SEARS BUILD - Page 13 Img_5315

Rear bumper heavily chipped from hitting things and towing with a chain. Paint worn off gas tank from the tool bag that was strapped there during the 2015 PA trip. You can see the ding in the bumper from where I rammed into it with the simplicity at Haspin. Spare steering arm zip tied on for quick access.
BAJA SEARS BUILD - Page 13 Img_5317

Both front shocks have always kicked out a small amount of oil. Which gets coated with dust. A lot of the frame is covered with mold spots from being in the garage. Most of that was actually there before Haspin, I was busy with the simplicity and didn't clean it all off. Either way, the muddy Haspin conditions left a hard to remove film on the tires and frame, so everything needs to be scrubbed down before touching up the paint.
BAJA SEARS BUILD - Page 13 Img_5316

Excess grease on all grease points. Paint dug off the hub caps. We have some work to do to get this thing back up to show quality. I might letter on the shift pattern after touching up everything else.
BAJA SEARS BUILD - Page 13 Img_5319
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeWed Jul 27, 2016 11:38 pm

Fenders and seat painted up.
BAJA SEARS BUILD - Page 13 Img_5411

Rear bumper looking better. Number plate temporarily removed. Some of the gas tank painted.
BAJA SEARS BUILD - Page 13 Img_5410
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Doug
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeSat Jul 30, 2016 1:28 am

Schnazzy

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MatthewD
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeFri Aug 19, 2016 4:26 pm

Do you find that big alternator is much better versus the stock briggs one?
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mr.modified
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeSat Aug 20, 2016 8:30 pm

Yeah, the stock charging coil will hardly keep up at idle with two incandescent type headlights and a tail light. With all four head lights on it would discharge the battery. With the alternator you've got power to spare. The stock charging coil is still in the engine actually. I thought of rigging it up as a backup but never did.
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MatthewD
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PostSubject: Re: BAJA SEARS BUILD   BAJA SEARS BUILD - Page 13 Icon_minitimeSun Aug 21, 2016 9:25 am

Ah righty interesting.
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