Bobby Schulz
Active Member
Guys I was just thinking about how easy it is for the factory vent to become clogged with clutch dust that mixes with the primary oil and start a pressure leak. I thought I would put up a super easy how to fix for the problem.
I have two problems with the factory style vent...
1) Its too small and easy to clog when the primary gets enough clutch dust in it. That can cause the pressure to go up and your nice clean bike to develop a oil leak when the fluid pushes past the seals/gaskets.
2) Where its located it tends to get a little bit of oil residue on the chrome in a place that is hard to clean.
What I suggest is the next time you have the primary cover removed is to do this. Install a stainless steel barbed pipe tube by drilling out and tapping the hole where the factory vent is located. Use something like this
Then running a clear plastic hose/braded hose to vent it to the atmosphere with a small screen filter.
Easy to do with simple tools, keeps the bike clean, and you can make sure that the filter is not clogged.
If you guys want I may sell a small kit that includes the stuff needed for the upgrade and would include the following.
1) Primary cover gasket.
2) Inspection cover gasket.
3) Drain plug O-ring.
4) Stainless steel barbed pipe fitting. (I may go strait,curved,or 90deg).
5) Drill bit that is the proper size for the tap.
6) Tap needed for threading the hole with a 3/8 extension fitting on the end.
7) Hose in choice of clear or braded.
What do you guys think?:loony:
I have two problems with the factory style vent...
1) Its too small and easy to clog when the primary gets enough clutch dust in it. That can cause the pressure to go up and your nice clean bike to develop a oil leak when the fluid pushes past the seals/gaskets.
2) Where its located it tends to get a little bit of oil residue on the chrome in a place that is hard to clean.
What I suggest is the next time you have the primary cover removed is to do this. Install a stainless steel barbed pipe tube by drilling out and tapping the hole where the factory vent is located. Use something like this

Then running a clear plastic hose/braded hose to vent it to the atmosphere with a small screen filter.
Easy to do with simple tools, keeps the bike clean, and you can make sure that the filter is not clogged.
If you guys want I may sell a small kit that includes the stuff needed for the upgrade and would include the following.
1) Primary cover gasket.
2) Inspection cover gasket.
3) Drain plug O-ring.
4) Stainless steel barbed pipe fitting. (I may go strait,curved,or 90deg).
5) Drill bit that is the proper size for the tap.
6) Tap needed for threading the hole with a 3/8 extension fitting on the end.
7) Hose in choice of clear or braded.
What do you guys think?:loony:
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