Re: O3 SCRAM 50 CHEAP MODS
The K&N air filter RU150 and RU160 fit booth the 50 and the 90 stock carbs. The RU200 filter fits the aftermarket Keihen 20mm carb. As for you scrambler 50 have you removed the restrictor in the cdi unit yet. If you have not, remove the cdi unit and remove the stainless plate from the back of the cdi unit then reinstall the cdi unit.