97 SPX high speed adjustment

[Hokiebob]

I've seen two specs for the high speed adjustment on the 97 SPX carbs. One says both at 0, the other says Mag/0, PTO +1/4. Any clue which is right?

 

[kustomkarl]

The High Speed screw is set to "0". These have a plastic cap on them to keep them from being turned any more than 1/4 turn. The Low Speed screw is set to 1 1/2 turns. The screw has a pin through it. If you need to adjust the idle speed do NOT use the low speed screws to adjust it. Use the IDLE Screw to adjust both carbs at the same time. When adjusting the carbs be sure both carbs are in sync.
I hope this info helps you out.


Karl

 

[Hokiebob]

Thanks for the help. I'll try it this weekend--on my last run I wasn't sure so I split the difference and had them both +1/8.

 

[kustomkarl]

That doesn't work....do it right.

Karl