Super Jet jetting on ported 84mm 61x/61x

[Dave Geiger]

I'm going to be running a ported 61x case and ported 61x cylinder bored to 84mm with a bpipe. 44mm stock carb Just wondering if any body has jetting/tuning ideas for this motor. Thanks

 

[WB1994]

Visit Factorys website . The answer is there.

 

[Roseand]

Sure if you wanna burn up your motor. Jetting is a lot different than what factory pipe recommends for a 61x nonmodified cylinder..

 

[Quinc]

160 main 127.5 Pilot 24psi pop off. On my 84mm ported 61x.

 

[Dave Geiger]

160 main 127.5 Pilot 24psi pop off. On my 84mm ported 61x.

What spring and n/s are you running?

 

[Quinc]

 

[WB1994]

120/150-20ish popoff

Do yourself a favor and use what people are saying as a general starting point. What factory recomends is fine for a starting point. Nothings plug n play.

 

[Roseand]

Id personally start with closer to what quinc is at. Stock ported 701s usually run around 120-125/150

 

[WB1994]

Sure if you wanna burn up your motor. Jetting is a lot different than what factory pipe recommends for a 61x nonmodified cylinder..

Answer is there.

 

[WB1994]

Id personally start with closer to what quinc is at. Stock ported 701s usually run around 120-125/150

Whats stock ported ?

 

[Roseand]

Stock bore 61x cylinder ported is what I meant.
The answer is not there. Those are suggestions for an untouched 61x cylinder. Porting your cylinder very much changes your jetting..

 

[WB1994]

A wetjet kraze has head and pipe and intake and the 46 mikuni comes with a 107.5 / 145. Yeah its not ported but its a stock ski with a warranty. 120/150 is plenty on a ported 61x with just a pipe.

 

[WB1994]

Stock bore 61x c. inder ported is what I meant.
The answer is not there. Those are suggestions for an untouched 61x cylinder. Porting your cylinder very much changes your jetting..

It might need a little fattening with jyst porting the cylinder . Plus ones persons porting is not the same as someone elses. Some people call cleaning up casting as porting. Thats why the factory page is correct. Its just a suggestion once you get to modding internals cause everyone is different.

 

[Roseand]

Yeah everyone's is different. My jetting is 127.5 and a 157.5 main on a ported 61x and a pipe. Mines an odd ball but it speaks for itself.

 

[Quinc]

Factory is recommending a 120 at 2 turns out. Better off going with a larger jet at 1/2 - 1 turn out.