Intake .10 to .15 mm Exhaust .17 to .22 mm
.006 on the intake and .011 on exhaust
Intake valve: 0.05 - 0.10mm (0.002 - 0.004inch) exhaust valve: 0.08 - 0.13mm (0.003 - 0.005inch)
intake 0.05mm-0.09mm (0.002"-0.004") exhaust 0.11mm-0.15mm (0.004"-0.006")
intruder lc 250 valve clarance spec place
I was looking for the same info and found this Inlet 0.002 - 0.0039 " Exhaust intake 0.002 - 0.0039" exhaust 0.0047 - 0.0067"
.13mm or .005inch
They are to set @ .005 in
VALVE/TAPPET CLEARANCE (250 cc) Intake 0.03-0.08 mm (0.001-0.003 in.) Exhaust 0.08-0.13 mm (0.003-0.005 in.)
.095 is the Honda spec i have the service manual
The version for Brazilian market XLX 250 R has the following data for valve clearance (from guide to stem): admission = 0,010 ~ 0,040 mm - max 0,065mm exhaust = 0,030 ~ 0,055 mm - max 0,080 Bernardo Itzicovitch / Brazil
1990 yz250 2 stroke power valve set up information, adjustment ?
ive been researching some things on 250 motors there usually .002 exhaust and .003 for intake i wouldnt go any tighter than .003 for the intake, check your current valve clearance if it .004 for intake take it down a thousand of a mm