I ran mine that way for awhile, and the main seal started leaking and filled the primary, wetting the clutch and causing it to slip. I changed it back the way the factory engineers designed it. The clutch mud that collects in the oil tank looks nasty, but in operation any added wear will never present itself. I ran my Shovel almost 200k before I tore down the bottom end just due to the high miles, and found negligible wear. Shortly after my new bottom end was in operation, the crank pin nut split in half, and I had to tear her back down. If I had left the bottom end alone, that would never have happened.
I did not want to be in the middle of bumfuck egypt and have the main seal start to leak again and ruin my trip. Same reason I run points ignition, ease of service and reliability. Even though neither the primitive ignition or recirculating primary oil seems to be the best for performance, it is obviously the best for reliability.
I'm just sayin'.
Posted on Jun 11, 2013, 10:42 PM from IP address 188.8.131.52