Ran the old girl a bit without hood or filter, couldn't resist. Ran great without any adjustment to dizzy, carb etc. Installed air box, hose and filter from GP and noticed hesitation at speed when adding throttle, also slight backfire when backing off throttle. Symptoms disappear with hose disconnected or choke pulled slightly. Obviously at speed the inducted air is causing a too lean situation.
My question is: Can this be alleviated by simple mixture adjustment or will it likely be necessary to try different needle profiles?
Always more fun to overthink before trying anything.
My question is: Can this be alleviated by simple mixture adjustment or will it likely be necessary to try different needle profiles?
Always more fun to overthink before trying anything.