Punkskalar
Hugh's HandBuilt
I installed a set of MikesXS Stainless Valves last season, along with brand new viton oil seals while I was at it. I have had nothing but trouble ever since. There is constantly oil in the intake ports and running down the valves themselves. I even tore the engine down again this year to do new seals, thinking I had a bad batch of seals.
Finally got the bike fired up today, and its smoking like crazy. Checked compression, it is at 185-190lbs on both cylinders Pulled the carbs, and sure enough, more oil in the intakes
I've built several engines, all using stock valves without issue, but these stainless valves have been the death of me. I measured the guides, measured all clearances just like the manual says of course, but it is plain as day, you can see the oil coming down the valve shaft...
Looks like another tear down. I need to do it anyhow, my MikesXS cam chain is stretched to the max, and looks like i am going to need to do an overhaul with new valves and guides (since I am already in there)
Who else makes replacement valves for the XS? I've had great luck using 35 year old valves in the past, just dont want to risk it again, too much work for a smoky engine...
Finally got the bike fired up today, and its smoking like crazy. Checked compression, it is at 185-190lbs on both cylinders Pulled the carbs, and sure enough, more oil in the intakes
I've built several engines, all using stock valves without issue, but these stainless valves have been the death of me. I measured the guides, measured all clearances just like the manual says of course, but it is plain as day, you can see the oil coming down the valve shaft...
Looks like another tear down. I need to do it anyhow, my MikesXS cam chain is stretched to the max, and looks like i am going to need to do an overhaul with new valves and guides (since I am already in there)
Who else makes replacement valves for the XS? I've had great luck using 35 year old valves in the past, just dont want to risk it again, too much work for a smoky engine...