1stR
01-08-2006, 02:14 PM
I just installed an ESR 330 bolt on kit onto a recently rebuilt bottom end. I have about 10 hours on the motor. Yesterday I was riding and the bike was running great. It was a colder day than usual, and I mixed the premix a little richer 32:1 compared the 44:1 which I normally run. I didn't rejet which I know I should have. Any way about halfway through my ride I got on the gas hard through 3rd and 4th gear and when I let off the motor started running real bad immediately. I shut it off as quick as I could.
The problem is that almost all of the coolant leaked into the cylinder as the resevoir was empty. I pulled the plug and it was wet and black. The ESR cylinder head is o-ringed, could this just be a blown head seal?
I pulled of the head today and there weren't any noticable crack in the cylinder or head, the compression is good, there was no coolant in the transmission/gear oil???? What could this be?? Please give me some info.
The problem is that almost all of the coolant leaked into the cylinder as the resevoir was empty. I pulled the plug and it was wet and black. The ESR cylinder head is o-ringed, could this just be a blown head seal?
I pulled of the head today and there weren't any noticable crack in the cylinder or head, the compression is good, there was no coolant in the transmission/gear oil???? What could this be?? Please give me some info.