9R - 37cc is a performance dome that requires full 110 octane fuel from 0-6500 feet or 30% 110 octane fuel from 6500 plus feet

The range of adjustability is from 65 to 102 grams

we would need to replace them at the same time

Our sheave clamp tool will allow you to add or subtract weight near the tip for fine tuning without removing the weights

Air Intake Big / Matryx 100049 Category_Default Category/SLED/Clutching/Yamaha Sled Clutching 9R - 37cc is aUpgrade your Polaris Patriot Boost, 9r, and 850 with a BIG air Intake. Boost your power and improve air flow with this modification for optimal results. Elevate your ride to the next level and dominate any terrain. Get ready for an unbeatable riding experience. This modification is a must have for any matryx snowmobile. These machines are highly susceptible to powder bog in deep snow, especially big power machines. This happens when the air intakes