I have installed my HD8 carburetors onto a slightly modified BJ8 engine. The
carburetors were rebuilt (by me). At present, the engine runs well but the
carburetors have a little backfire when cold and occasionally when warm. They
test by lifting the piston to be too lean. If I adjust the fuel mixture any
richer, the idle goes over 1100rpms and I still don't get the lift test to
properly keep the rpms steady.
Other items of note:
Checked for vacume leaks. Did not find any with a unlit propane torch.
Timing appears to be correct. I went back and checked the valve positions vs.
cylinders at top.
Engine revs ok, I have not driven the car to test the power. It does not
have body panels on yet.
Is it time to try a richer needle in the carburetor? If so, which would you
try?
Jerry
BJ8 in progress
BN4
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