heavy blue smoke on start up !

[ngoma]

Yes correct but much easier would be to take a clear photo of the cold start lever after the engine has been running and fully warmed up, and take another photo after the engine has had an extended cold soak. Or vice versa. Compare the lever position, that should tell you if the waxstat is functioning.

BUT: Doesn't a waxstat failure cause an "always on" condition? If the waxstat fails it will never allow the CX timing adv./idle speed increase lever to move to "warmed up" mode? So the IP will eternally be stuck in "cold" mode.

That's why those of us with failed waxstats have to disengage the end of the cable stop to let the engine run normally.

Properly tuned, the greenbook states there should be a 200 RPM difference between hot and cold idle speed.

[jpliddy]

thanks NGOMA
i have checked the travel of the cold start start cable i guess it travels about 9 mm , forwards and backwards so to say , but thats all i really know about this device

[jpliddy]

hello on start up i notice the revs only go up to 950ish rpm ,if the cold start device is set up correctly it shoud be about 1050 rpm for a short while till engine is hot and cold start device releases the cable ,