Nater_Potater
VIP MEMBER
- Joined
- Apr 7, 2013
- Messages
- 1,342
I does appear to be fuel-level related on mine, as it pulls like a freight train up to the point in high gear where the throttle is held to the stop for an extended period of time (>5 seconds?). At that point, it pretty much levels out. Slowly closing the throttle at that point will return a slight, almost imperceptible, forward push, signifying a lean condition. Going larger on the main jet doesn't help, so I'm assuming the needle/seat assembly is the limiting factor at that point.dennisgb said:Is it really inlet needle restriction (wouldn't that be the same for a given bike with single or duals)?
I would assume it is more related to volume of fuel in the float bowl being used up, but I could be wrong.
Assuming it's the needle and seat causing the restriction, raising the float level would only buy you the fraction of a second that it would take for the main jet to pull the level back to where it was before. I still want to play with it this Spring as far as increasing flow into the bowl, similarly to what is done with the Amal float bowl eyebrow cut. IIRC, Mikuni makes ported variants of the seat that should allow a greater flow.dennisgb said:Is it possible to adjust the float to improve fuel delivery amount on a single carb set-up? I suspect there is a point of diminishing return given that with dual carbs your only sucking every other stroke so there is essentially double the fuel available.
Nathan