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View Full Version : 2013 drr90 compression testing



ironarmscott
02-18-2013, 07:19 PM
Want to check compression test on a drr90 2013 can only find info on the older bikes can anyone help thanks

mmsoup
02-21-2013, 06:02 PM
If noone else is going to respond


Get a decent test gauge, hold the throttle wide open and kick hard until the needle quits climbing (Around 10 kicks) That motor will be between 150 and 175 lbs anything below 120 should raise an eyebrow

Piston has two rings and the motors hold up pretty good. Just can't keep up with the Euro jugs

ironarmscott
02-21-2013, 06:07 PM
Thanks for reply just found out its 140

selbygirl
02-22-2013, 04:00 PM
you may want to call drr hotquads g-force if it is bone stock they should no . i had motors with around 135 psi it depends on what your squish is the the thickness of your base gasket