Air filter drips oil??
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Hard for me to understand why so many people offer a workaround that may not fix the problem rather than actually explaining the cause of it.
Brent09, the crankcase is vented into the air filter on these bikes. Do you have a "stage 1" air filter? This makes the issue even worse because the factory back plate is removed and is not there to catch all the drips and mist that are coming out of the filter.
Dropping the oil level made no difference at all for me, and is not the correct solution in my opinion.
Rather than dropping the oil level (which is pretty damn important seeing as these bikes are air cooled and already fight high oil temps), many people re-engineer the crankcase vent and run a longer hose away from the factory air intake directing the blowby onto the ground or into a catch can or breather filter. If you have a stage 1 setup, the design of the back plate won't allow this, and you may have to get creative with using two small pieces of copper tubing bent into a U-shape that will direct the blowby toward the throttle body instead of into the air filter. These pieces will have to be secured to the back plate; people normally use something like JB Weld.
Good luck.
Brent09, the crankcase is vented into the air filter on these bikes. Do you have a "stage 1" air filter? This makes the issue even worse because the factory back plate is removed and is not there to catch all the drips and mist that are coming out of the filter.
Dropping the oil level made no difference at all for me, and is not the correct solution in my opinion.
Rather than dropping the oil level (which is pretty damn important seeing as these bikes are air cooled and already fight high oil temps), many people re-engineer the crankcase vent and run a longer hose away from the factory air intake directing the blowby onto the ground or into a catch can or breather filter. If you have a stage 1 setup, the design of the back plate won't allow this, and you may have to get creative with using two small pieces of copper tubing bent into a U-shape that will direct the blowby toward the throttle body instead of into the air filter. These pieces will have to be secured to the back plate; people normally use something like JB Weld.
Good luck.
Last edited by Cousy; 07-23-2016 at 08:36 AM.
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