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Posted

Bike will start just fine, but if i rev it in neutral or try to go in gear it stumbles and has no power. the plugs were a little black so i swaped them out just to check and it had no effect. Yesturday was first day of spring and cant ride. Please Help!

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Posted

How long has it been standing?

Have you given it a good clean-out, oil/air-filter change and all?

Blackened plugs = Could be your mixture is too rich, or your air filter is fouled.

Here's a nice chart:

sparkplugs.jpg

Posted

it actually started doing it last summer while on a trip. i towed it home and found that the air box what cracked. i put a new one on last week and still the same. i cleaned the air filter and even ran it with out the filter and nothing different. a friend of mine has the sam bike and he had a similar problem and the dealer told him that the carb was dirty so the cleaned it and balanced it. i had a jet kit installed about two years ago after installing an aftermarket exhaust.

Posted

Check the carb manifolds - The stumpy black tubes going from carb to the cylinders.

These do perish and crack open after a while.

I'd personally just get it a comprehensive service and check-over. DIY or get 'a man who knows' to do it.

Posted

yah i changed one of the carb manifolds last year because it was rotted and cracked. i guess i will just have to take it somewhere.

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