A 57" stroker (chief wheels) is in my shop. Belonged to a deceased good friend; now his son owns it, and he is worthy and as dedicated to its preservation as one could expect from a young, gainfully employed parent of two kids. I have "adopted" the bike's maintenance chore that got extended somewhat, and the low-budget hot rod had many loose nuts and bolts, poor on brake works, shot wheel bearings, loose neck bearings, and the carb screws were loose (which explained the full choke starting). I started it yesterday, ballsy bark and cackle!
But I've never in the 24 years I've been acquainted with this machine been proud of its carburetor. I don't think the "M-BONN" with 1 1/8" venturi and bored out lower 2 holes in the main nozzle has been the right "recipe" for this engine, even considering that it has aggressive cams (valve durations overlap). I'm not sure what it ran besides that Bonn carb, but I think it's too difficult to tune, especially for more conservative riding. ... I don't expect "sonny" to hot-dog it until we rebuild the lower end and a few other areas. So, I expect to replace the bonn with either a scout M-41 linker, or a chief 344 with (?) probably a 1 1/16" venturi, perhaps 1", ...... heck! I don't know!
I know this: I wish to consult an expert, or one who has experience with which to advise me.
Anyone out there that can steer me into the right direction?
Gonna check virtual library first, but I'd like to see discussion here, too.
But I've never in the 24 years I've been acquainted with this machine been proud of its carburetor. I don't think the "M-BONN" with 1 1/8" venturi and bored out lower 2 holes in the main nozzle has been the right "recipe" for this engine, even considering that it has aggressive cams (valve durations overlap). I'm not sure what it ran besides that Bonn carb, but I think it's too difficult to tune, especially for more conservative riding. ... I don't expect "sonny" to hot-dog it until we rebuild the lower end and a few other areas. So, I expect to replace the bonn with either a scout M-41 linker, or a chief 344 with (?) probably a 1 1/16" venturi, perhaps 1", ...... heck! I don't know!
I know this: I wish to consult an expert, or one who has experience with which to advise me.
Anyone out there that can steer me into the right direction?
Gonna check virtual library first, but I'd like to see discussion here, too.
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