dps650rider
XS650 Addict
Have my top end apart to replace a broken valve spring and valve seals and see that I don't have enough clearance between the keeper and the seal when the valves are fully open. Measured this by assembling the seal, valve and keeper assembly with no springs and used a caliper between them and compared to the lift spec on the cam (0.415 intake and 0.400 exhaust). Even with the low profile seals I have there is almost no clearance on the intakes. I have another set of low profile seals coming from Hoos Racing but think it still may not be enough.
Any ideas? It looks like the keepers could be ground down 0.010 or so, anyone ever done that?
Any ideas? It looks like the keepers could be ground down 0.010 or so, anyone ever done that?