I'm fairly new to indians though I've wanted one for many years, so I recently picked up a nicely bobbed 741. The motor has been stroked to around 50 cu in and the bike generally has been put together with alot of nice period touches. I'm currently sorting all those fiddly troublesome bits that can get overlooked on a total rebuild sometimes.
My bike is fitted with a M51 Harley carb, externally vented, with plugged main jet and a 4 hole main nozzle, this, needless to say is a fair way off from the M633-642 Indian spec carb, the bike runs extemely rich after idle, through transition, cruise to main mixture.
With the help of the really useful "Linkert book" I have been better able to understand how the carburettor works and note the differences in the setups of Indian carbs to Harley carbs. So I have purchased a scout 45 main nozzle with 5 holes and other linkert rebuild parts to start correcting the fuelling problems. Has anybody used harley main jets in their Indians ? if so, is there a size to start from ?
Many thanks, best regards