Question about 1997 kawasaki ZX-7R

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After the bike gets hot it cuts back really bad.

1997 zx 750 r had the plugs changed carbs sync,after it gets hot it still cuts back to the point of cutting off, after i do cut it off it wont fire back up until the engine is cool. MAYFEILD

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Although you have had the carbs sync,i dont think the mixture settings are correct,the carbs are leaning out to much when the motor is hot

Posted on Jul 04, 2009

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Apr 07, 2010 | 1990 Suzuki GSX-R 750 L

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If i get on it hard it spits and sputters but when i get to speed and let off it cuts off wont crank back


Try cleaning the carbs and make sure the hoses and the diaphram in the top of the carbs are not messed up. It sounds like a vaccum problem. Make sure the carbs are in sync too.

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carb sync is done using only the carb hard stop adjustment u don't touch the air fuel mixture screw, had this exact same bike had the serive manual am dead sure on this

Aug 04, 2009 | 1977 Suzuki GS 750

1 Answer

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http://www.powerchutes.com/manometer.asp
It's a liquid column differential manometer, which very accurately and sensitively measures the vaccum on the different cylinders of the engine. The only other thing I can think of is your ECM, which controls the engine, and incorporates your rev limiter. These are pretty pricey, so I would do the steps above first.

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1 Answer

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