1957 bigtwin runs well - top cylinder fouling the plug (black) but bottom is fine - swapped plugs, same result.
could it be the plug cable? is there anyway to test a cable (I've got several to choose from).
time to get a compression tester. bought one and couldn't figure out why both cylinders read 60 so i returned it. then i realized i never unhooked the compression relief arm
could it be the plug cable? is there anyway to test a cable (I've got several to choose from).
time to get a compression tester. bought one and couldn't figure out why both cylinders read 60 so i returned it. then i realized i never unhooked the compression relief arm