Hi all.
I have a mikuni 18mm carby with a zorst I picked up off a little dirt bike.
Seems to run fine the whole way through with a fairly good pick up only once it reaches the top end it will start running rough.
To clear it out I just back off from WOT for a moment then give it another hit and it will run clean for another sec or 2 then back to running rough and I find myself having to repeat that if I want to maintain high revving.
ALthough on the odd occasion it will run fine up the top and it seems like I can cruise with high revs only at 1/4 to 1/2 throttle.
Its running a .20 pilot jet and a .60 main jet. The plug looks a nice coffee colour and i'm running 25:1 on valvoline non-synthetic.
Any thoughts?
Thanks Breno
I have a mikuni 18mm carby with a zorst I picked up off a little dirt bike.
Seems to run fine the whole way through with a fairly good pick up only once it reaches the top end it will start running rough.
To clear it out I just back off from WOT for a moment then give it another hit and it will run clean for another sec or 2 then back to running rough and I find myself having to repeat that if I want to maintain high revving.
ALthough on the odd occasion it will run fine up the top and it seems like I can cruise with high revs only at 1/4 to 1/2 throttle.
Its running a .20 pilot jet and a .60 main jet. The plug looks a nice coffee colour and i'm running 25:1 on valvoline non-synthetic.
Any thoughts?
Thanks Breno