Bajaj sunny stalling problems I have a 1998 model bajaj sunny zip. Problem is after running for approx 2 to 3 kms the engines starts to die as if no fuel is reaching the carb. The moped eventually stops and has to be started by applying choke for approx 3 to 4 mins, but still it runs again for 2-3 kms before dying again. I am facing this problem for last 3 months. I have done the following
1) Cleaned carb muliple times using kerosene and STP carb spray. The jets looks fine and the jet holes are not blocked.
2) The idling and fuel/air ratio screw in carb was not disturbed/adjusted during cleaning.
3) The float pin was changed to new one.
4) 6 days back the moped would not start. Removed and checked the spark plug. No spark. Replaced with diff part number and checked spark. Spark excellent, but still now problem comes after 10 kms or so.
5) When choke is applies engines speed varies a lot inspite of throttle kept constant which is weird. One second it is idling next second at high RPM and the speed vary cycle continues.
6) Checked fuel line from fuel cork to carb. Line clean and flow excellent in on position.
7) changed fuel by filling from diff petrol pump. No result.
8) Breather hole in plastic fuel cap O.K.
The authorised bajaj dealer does not accept it for service since he says no spares available. But my guess is the float is getting stuck and hence no fuel. Sometimes the vehicle is OK in idle but engine dies when throttle increased. Any suggestions welcome. |