Question about 1997 Honda CB 500

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The engine revs increase when the engine gets warm.

After riding the engine revs increase to 4000. If the engine is switched off and restarted, theengine idle's at about 1000 revs.

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Sounds like the carb lifting body is sticking. take it out and clean it, give it a light coating of wd40 and check the body for any sharp edges as this will cause it to stick. if it has rubber diaphrams then check these for holes even a oin ***** will cause many a problem and must be replaced.

Posted on May 28, 2009

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Engine cuts out when given gas

if theres nothing wrong with it you should close the choke between half and quarter (depends on the engine) and gently rev the engine bit by bit till it warms up, you will find the revs increase with gas to a point but if you give it any more gas it will start to stall and cut out, you have to wait for it to warm up - by keeping the gas at the sweet spot where you get best revs without it cutting out - then slowly increase gas pressure as the engine warms up - you can press it a little bit more bit by bit as the engine warms up and the combustion gets better - eventually you will be able to press the gas fully kin and the engine will just run but sound bogged down or gasping for air - this is when to open the choke to the RUN position (or fully open) --- it's now ready to use.
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Jan 15, 2010 | Poulan Garden

1 Answer

My cbr 900 rrx is spluttering below 4000 revs?

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The engine rpm's increase when the engine gets warm.

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May 30, 2009 | 2005 Mitsubishi Lancer

1 Answer

The engine revs increase when the engine gets warm.

Sounds like you are running lean. you may need to find an air leak in the intake tracked of the carb and motor. or the carb is dirty or miss adjusted pilot screw.

May 27, 2009 | 1997 Honda CB 500

1 Answer

Engine will not switch off with key and will start with key switched off ;when started revs to 4000rpm RSV 1000 MILLE 2004

Sounds like time for a new ignition switch. The 4000 rev is probably fuel going into the engine when engine runs down rpm while stopping.

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