Question about 2001 kawasaki ER-5

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My er5 runs rough when i ease off on throttle and go back on bike shakes and picks up speed i have cleaned carbs changed plugs and oil+filter

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Hi there Dave
I would check Carby setting. Like float levels, Mixture screw setting. These can make the bike run
roughily. Also the spark plugs settings, eg not right gap or heat range or ever reach. One other thing
is vacuum leak eg from a vacuum hose ( this usely makes the bike run rough all the time) Simple way
to test this is use a can of WD 40 & spray over the vacuum hoses & if it stops the problem for a short
time you need to replace the hose or fix the leak. I hope this helps your problem, if not please put up
some more info on what you have done to help you There is many little things that can course is
problem.
Regrades Lighten

Posted on Apr 26, 2009

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I have a 1999 honda valkyrie interstate. it is idling and throttling rough. with the choke engaged at startup it will only idle at about 1100 rpm. when i throttle up it it just doesnt feel like it should....


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Please rate this solution. Thanks Cindi!

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Tabbycat gave a very good answer. The pulse sensor could be the problem. If the sensor checks out okay then it is time to look at the rest of the CDI ignition. Next would be the carbs. ALWAYS have a fire extinguisher at hand when working on carburetors.

Drain the carburetors. There should be a screw on the lower side of each carb float bowl. Remove the screw then replace it after the fuel drains. Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, (not all bikes have a water trap bowl). Turn the gas back on and wait a minute for the carbs to fill with gas. If the bike doesn't start and run properly then shut off the gas and remove the carburetors from the engine.

FOR EACH
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< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Install an in-line fuel filter. Let the float bowl fill then start the engine. This process should get you back on the road.

Also, sync the carbs such that the slides on all carbs move at the same exact instant when the throttle is slowly turned from idle speed.

Please rate this solution. Thanks!

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