Quote:
Originally Posted by OZZIEVILLE 67 2 door
Thanks for the replies,
I will do some homework this weekend with a compression test, photos of the fouled plugs about to be changed, and I will put a timing light for reference.
Oil consumption is approximately 1 litre per 1000 miles.
The carbie is a QFT. Not sure exactly what size as my invoice states different with the documentation.
It is worth mentioning that to get the hood to close, I had to fit a drop base for air cleaner. My retired carbie guy removed the choke horn..12 years ago.
John L
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I assume QFT is a Quick Fuel Carburetor. Could you also send a pic of the carb and the intake your using. Running a 4150 based carburetor with a spread bore adapter and no choke is not optimal IMO. Making the carburetor rich enough to start and warm up decently will likely result in a too rich condition once warmed up. To start and warm-up, the engine will want 8:1 approx A/F ratio. Around 10:1 during warm up to run smoothly. About 13..5-14.5 once warmed-up. Not having a choke system means some compromises had to be made to make it driveable without that system. It's likely the plugs are being fouled every time you start and warm up the engine. Then once fully warmed, they burn off and it runs good. If you want to stay with that carb without a choke, I would try a 1 step hotter plug and use a copper style spark plug. (The cheap ones) Platinum plugs are notorious for gas fouling. This should help.