QuestionI have a Kawasaki 220 and gas was left in the bike over the winter. I have cleaned the carburetor and drained the old gas. However it is running poorly still. It will idle but once you hit the throttle it chokes down as if it is not getting enough fuel. Any suggestions on what may be causing this problem or how to remedy the issue?
AnswerHi Elizabeth,
Try applying a bit of choke with varying amouts of throttle. If engine speed (RPM) and throttle response improves or acts normal like, the air-fuel mixture is too lean. If the problem becomes worse or there's no change, the air-fuel mixture is too rich.
To correct a lean condition, tune the carburetor accordingly to increase fuel into the A/F mix, or decrease intake air.
To correct a rich condition, tune the carburetor accordingly to decrease fuel into the A/F mix, or increase intake air.
Check for intake air passageways and airbox for restrictions. Ensure the air filter is clean and in good condition. Clean or replace accordingly.
Keep the spark plug(s) clean and dry. Check frequently while tuning. Clean or replace accordingly.
The entire fuel system should be inspected for evidence of varnishing or other contaminants. Such can re-contaminate a freshly cleaned carburetor.
I would send you tech information files if I had access to your email address.
Respectfully,
Mark Shively
