I was told to drill 2 holes in my piston where the exhaust bridge meets it. Some other guy says to put 2 dimples into it. However, my crank rod installer told me to drill 2 holes completely through the skirt, otherwise it won't work correctly. Any input on this?
Also, where's a forum post about fixing the starter/counter balancer issue where oil fills the starter? I saw Odyssey Salvage had a way to do it and I've seen other ways where people had what looked like plungers/siphons attached to the case.Drill the holes through the skirt of the piston and make sure you de-burr the holes you drill. Dimples in the piston won't do much if anything! If you have the instructions for the wiseco piston you purchased, it will tell you haw far apart to drill the holes. If you need more instruction just ask!
As far as the vent goes you will need to plug the vent hole that leads into the stator cavity. The hole is in the center case half at about the 2 o'clock position close to the edge of the stator itself. See picture below.
After you have plugged the vent hole, there are a couple of ways you can create a balancer vent.
1.) You can drill and tap the side case and install a 90 degree fitting. The drawback to doing this is that you have to remove the clutch and side case to do it and you also have to relieve the belt guard in the area where the fitting is located. The case in this area is thin so be careful and don't drill the hole too large or tap the threads for the fitting too deep.
2.) The second way you can create a balancer vent is to use the existing balancer oil fill plug hole. The only draw back to this is you have to remove the vent system to check the oil level.
The following thread is the first version of the no case modification vent system I designed.
viewtopic.php?f=1&t=6309&hilit=ven"
This thread is the revision 1 or my second version of the same type of vent system. I like it better than the first because you can take the hose of by just using your fingers.......no tools required!
Rand
viewtopic.php?f=1&t=8323&hilit=vent"