SL 650 impulse pressure?

[kenden]

Hello, I have 2-SL650's (1994) , one runs great the ather bogs down - When checking everything noticed that impulse to good one fluctuates between 1 and 3 PSI?, the bad one is at a steady 2 PSI.

What should the impulse vacum/PSI be like?

Thanks,

[dierdorf]

Re: SL 650 impulse pressure?

Maybe I can shed some light.

When I was doing some troubleshooting for a no start situaition I called perfmoto.com, 1-260-637-7953 and they told me 6-7 was good. I checked mine on a '95 SL 750 and that is about what I had. My new 3 output fuel pump just quit causing the no start problem.

So...don't know about a 650.

Hope this helps alittle.

[kenden]

Re: SL 650 impulse pressure?

Maybe I can shed some light.

When I was doing some troubleshooting for a no start situaition I called perfmoto.com, 1-260-637-7953 and they told me 6-7 was good. I checked mine on a '95 SL 750 and that is about what I had. My new 3 output fuel pump just quit causing the no start problem.

So...don't know about a 650.

Hope this helps alittle.

Thanks,

Will let you know

[surveyguy]

Re: SL 650 impulse pressure?

if you're concerned about crank pressures, good to do a leak-down test. have you done a compression check?