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Messages - Workmanf150

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Briggs Flathead / Re: Adjustable main for opposed 42ci
« on: April 11, 2009, 08:04:36 PM »
yea but it runs i would tink it would just load up and flood out. icleand the carb again gonna try again in morning and getting ready to build new exhaust too but yes the .077 jet really confuses me i gonna order a new jet and see the difference and eventually put an adjustable in it but at least now i dont ave to drill a jet for te adjustable i already got one  :doh:

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Briggs Flathead / Re: Adjustable main for opposed 42ci
« on: April 10, 2009, 10:14:23 PM »
ok Ive got one.   i pulled my main jet out to drill it and i measured it.  its stock pulled it off the mower myself and the main jet is .077 how can tat be everyone talks about drilling out to .060? im lost now

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: April 06, 2009, 03:53:13 PM »
well looks like im building new exhaust this weekend

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: April 06, 2009, 03:23:47 PM »
1 1/4 exhaust? im running 3/4 maybe thats part of my problem looks like im gonna by building a new exhaust system.  And yea but you can never have too much horse power.  still want to build bigger motor maybe little nitrous too. 

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: April 01, 2009, 07:17:40 PM »
got an update for today i did tear the carb down and it was bad the gasket has literally disolved and the was every wear so im cleaning now and getting alot of junk out of passages gonna drill jet just got to find the right size drill bit

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: March 31, 2009, 07:46:06 PM »
i think im gonna try to tear it down tonite and look at it ive never even had this one a part maybe change main jet or drill it out bigger.  have actually done that before long time ago on old motorcycle carbs would get jewlers drill bits and drill the jets out one size bigger or what it needed used a small hand drill
really will the stock rods and pistons hold up ok or are the destin to come apart, and what about cams G-team does make cams?

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: March 31, 2009, 07:38:01 PM »
oh well that one is worse the motor i am tearing down has been sitting in a friends yard for six years and never runn so im sure that carb is in bad shape the motor looked bad outside but almost like new inside but still want to go with stronger pistons and rods and a new cam. would love to try a cam in the running motor just to see how it reacts. how much are the g-team cams they dont have prices on the web site?

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: March 31, 2009, 07:15:33 PM »
well not really have any class rules this one is not on a mower we dont have mower races around here yet they are talkin about next year at the local kart track but for now this one is on a barstool racer that i built the other motor i want to build as wild as i can and if they bring the mower races here then im gonna build on to race here. i looked at the G-team web site and done see how that carb would bolt to my intake unles a get 90 degree elbo

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: March 31, 2009, 07:06:44 PM »
Is there an aftermarket carb that i can put on this motor to boost the performance and if so where can i get it i have another one of these motors and am getting ready to tear into and rebuild.  been to the G-Team website and thinkin about goin that route with the motor any advice would be greatly appreciated

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Briggs Flathead / Re: 18 hp apposing twin runns bad
« on: March 31, 2009, 07:01:53 PM »
yea gonna try cleaning carb and this carb was one that was not originally setup with a fuel pump thought about adding a fuel pump. what should the gap be for the between coil and fly wheel. a local repair shop told me just slide a business card inbetween coil and flywheel and tighten it down it runs but wondering if thats to tight?

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Briggs Flathead / 18 hp apposing twin runns bad
« on: March 31, 2009, 03:02:58 PM »
need some advice from anyone that has any ideas im new to these motors i have a stock 18 hp flat head apposing twin with new coil but stumbles bad off idle and surges at full throttle i tried adjusting enrichment screw but doesnt help it is a gravity feed set up no pump it does have a custom built header that is two into one straight pipe. it also backfires alot i do know that on our kart motors the single cylinder flat heads thats normal but dont know if normal on this motor any help would be greatly appreciated

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