questions about 90 650 super jet

[rutony12]

What years does this jet pump assy fit?
Also have a coffmans pipe off it and what to know what it will fit?

help requested from you yama guys.

 

[Matt_E]

The pump will fit all years Superjet.
The pipe is meant for a 650, but will fit all Superjets. It would be beneficial to open the exhaust manifold if you run it on a 701/760./\

 

[jeepfamily]

The pipe is meant for a 650,

depends on what coffman pipe it is, the coffman rocket and lightning series were built for the 701

 

[jetskiking]

The sizzler was the only pipe they made specifically for the 650.

 

[team510]

i have a coffman pipe from when my 91 SN was a 650. I kept it and have been running it on my single carb 701 and it seems to work fine. the stinger doesnt look much smaller than a B-pipe. Im sure the B-pipe is much better, but im no racer and im cheap so it works for me.