Quote:
Originally Posted by ROSS11988
... Any idea?
|
The pilot jets are clogged (and need manual cleaning) and the idle speed (idle adjustment knob) is set to high. If the carbs and the choke are functioning properly, the rpms should only go a around 3-4k rpms.
Your engine idle speed should be 1350 +/- 50 rpms. The engine should be completely warmed when it is adjusted.
2000-3000 rpms is a common idle speed range for when the choke is on. They key is reducing the amount of choke (small increments) during the warm up until the bike can maintain a steady set idle speed on it's own. It is also acceptable to ride off with the choke on a short distance until the bike is warmed.
Never let your cold engine idle that high with no load. The white smoke may be a sign of
Piston oil ring worn
Cylinder worn
Valve oil seal damaged
Valve guide worn
Engine oil level too high
Warm exhaust condensation (cold ambient air)