Hi all
Having just rebuild my m20 I am having a tick over problem
With the motor warm and full advance the motor is hunting , the taper needle is on the second notch from the top and when trying the air pilot screw it makes no difference to the running, I have dropped the taper needle to the top notch and the hunting seems to have stopped but I still have a high tick over I have adjusted the pilot air and the tick over screw but not able to get to a low tick over . Could this be a worn taper needel or something else
Regards
Carl
The needle shouldn't be having an effect at tickover. If adjusting the pilot air screw is ineffective, the inference has to be that the pilot airways in the jet block are blocked.
This means dropping the body in a pot of boiling water, tapping the block out carefully with a wooden dowel and then making sure that all drillings in the block and mixing chamber can be blown through..if not, carefully clean.
Hi Ric
Don't think this is the problem as I have striped and cleaned the carb. Could it be anything else before I remove the carb and strip down again
Regards
Carl
If it's not the fuel air mix then timing ? If it ticks over when retarded, could it be set over-advanced ? Assuming that there is compression then only fuel and spark can really be a factor...
No will not tick over when retard,
Timo
Timing is fine 7/16 bf top dead at full advance ,
Looks like I will need to strip the carb and see if sometihing has got in there
Regards
Carl
Hi Ian
Will look at carb flange
No leek on the head gasket , valve seats all ok, no timing hole this has been sealed some time ago
Could there be another leak in the carb to look for
The bike runs fine on the road and starts first kick most times just not good on tick over
Regard
Carl