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  #1  
Old 06-08-2016, 05:20 PM
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Default Plug showing lean but acts like its rich.

Got a crossfire that i cant seem to get jetted.....ive gone from stock all the way to 135 main (at 135 it pops and spits at wot) and the plug always looks just as white as it did right out the box. the base of the threads are black at 135.
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Old 06-08-2016, 08:18 PM
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Right plug?

Everything else in good condition?

Trying to jet a poor running engine is a waste.

Have you checked your valve adjustment?
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Old 06-08-2016, 08:38 PM
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are you sure you are getting good fuel flow?
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Old 06-09-2016, 09:31 PM
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Quote:
Originally Posted by jmansracerocket View Post
are you sure you are getting good fuel flow?
Good call. Could be a float issue.
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My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top..........
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Old 06-09-2016, 10:16 PM
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Should be....its got a riding mower tank, clear 1/4inch lines, mower shut off valve and a big glass filter. lines and filter are always full.
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Old 06-10-2016, 10:49 PM
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That doesn't mean there's enough fuel in the carb bowl.

What's your float level set at?

How's the float needle look?
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My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top..........
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  #7  
Old 06-11-2016, 01:53 AM
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Needle looks good. No clue on float level..never have messed with it. Whats it sposed to be? I belive this carb has the short pilot.
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Crossfire 250r IRS (400cc swap in progress)
Crossfire 250r (SYM 250)
HH250SS..RIP (IRS donor for the crossfire)
HammerHead 150
Gs Moon buggy 150
Many other random parts buggys (still never have what im needing tho :/ )
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Old 06-12-2016, 09:50 AM
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Not knowing what carb you have, I can't say.

How about a pic?
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My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top..........
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  #9  
Old 06-12-2016, 03:55 PM
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Ill pull it off and get some pics tonight. All i know is it looks just like any other 150 carb but its 26mm on butterfly side and the slide is larger diameter. It came off of an older mid size carter brothers 150.
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Crossfire 250r IRS (400cc swap in progress)
Crossfire 250r (SYM 250)
HH250SS..RIP (IRS donor for the crossfire)
HammerHead 150
Gs Moon buggy 150
Many other random parts buggys (still never have what im needing tho :/ )
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