[Backwoods grizzly06]

Was just wondering if 2 1/12 hoses were big enough for the intake. Mine cuts out a little. Might need to adjust the a/f screw. It's jetted already

 

[civicgsr]

From everything I've read most 660's with dual 1.5's especially ribbed spa hose always end up having to jet down.

 

[Backwoods grizzly06]

Stupid question but mine is running lean with a 150 jet so I need to go to a 155 or 160 jet correct?

 

[civicgsr]

Stupid question but mine is running lean with a 150 jet so I need to go to a 155 or 160 jet correct?

That is correct sir. That number is the size of the hole in the jet. The bigger the number the bigger the hole. Bigger hole, more gas, richer mixture.