Sudden rough running

[JZ05220r]

I did check the float height and I was at 17mm. Took it for a quick run and still the same results as expected. I’m hoping the problem doesn’t have something to do with the top end, particularly the sealing of the piston rings as I have already confirmed proper kips function.

I also realize it might be a good idea to try a new jet block gasket before I tear it down. I realized that the jet block testing using compressed air in the pilot circuit only truly tests the three little circles integrated into the O-ring, but not the main part of the outside of the jet block o ring. Even if a new jet block o ring miraculously fixed it, I’m still going into the bottom end to take care of those leaks, hopefully with no mishaps.

[JZ05220r]

I jumped the gun and now I have the engine out and I just pressure tested it one more time outside the bike and I’m a little shocked to see it holding pressure much better than it was before. I did just rinse it brush and rinse again. It’s still wet. I pressurized it to five psi and after eight minutes I’m at 3 1/2 psi. Must’ve had an external leak on the pressure tester.