Strange Question...

low slung · Apr 8, 2019

As the owners of two sport quads(2012 Raptor 700,2012 YFZ450 carb)me and my brother have been enjoy these summer toys for the past eight years.The first winter for the YFZ we noticed the motor oil would develop condensation in the breathers to a point where it would turn the engine oil a bit milky.That was the first and last winter it was used in that season(mothballed in Nov,woke it April:face-icon-small-hap from now on).Just wondering how do you guys on the fourstroke 450s snowbikes keep the moisture out of your engine oil with all that snow hitting the engine cases?Just curious.........

mrsnow · Apr 8, 2019

Breather

I took the breather tube off the carb plugged the carb port, routed it up over the eng to the primary chain. Don’t know why for sure but stopped all water/ oil problems. Some put a filter on the end and mount it somewhere. This would be nessary if u were to ride in dirty conditions. Snow no dirt. Putting it on the chain makes no diff,just helps keep it oiled. CLEAN OIL.

CATSLEDMAN1 · Apr 8, 2019

ENGINE TEMP

the excess moisture is a result of your motor running toooo cold. Install a water temp gauge and keep the engine antifreeze operating temp above 150 degrees. You likely have a thermo stat ? But, in cold snow your engine tempature isn't getting close to temps for your thermostat to have any effect.

So, like the snow bikes, turn off your fan, cover a radiator, cover the bottom of your engine to keep the snow from sucking the heat out of your motor. Watch the temps, you'll figure it out.

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Strange Question...

low slung

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mrsnow

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CATSLEDMAN1

Well-known member

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