This is for my 04 CFR450
It had been some time since I had checked the valve clearance on my bike. It was hard starting it on the last ride so I figured I'd better get to it. Well, sure enough, the intake valves were out of spec. Would you guys check my math and help me make sure I'm doing my calculations correctly so that I get the right replacement shims?
Specified valve clearance:
Intake .006 +_.001 .16mm
Exhaust .011 +- .001 .28mm
The exhaust valves were in spec so I'll get right to the intake valves. Here are the numbers I came up with
Left Intake
<.002 or somewhere between .0254mm and zero. I don't have any feeler gauges thinner than .002
current shim size is 1.65
Right Intake
.003 current shim size 1.75 .0762mm
Doing the math: A= (B-C) + D
Where A = new shim thickness
B= recorded valve clearance
C= Specified valve clearance
D= Old shim thickness
Left Intake
A=(0.0254-.16)+1.65
A=1.5154
So, do I go with 1.50?
Right intake
A=(.0762-.16)+1.75
A= 1.666
and this one would be 1.675? or 1.65?
Available shims: 1.200mm – 3.000mm in .025mm intervals
It had been some time since I had checked the valve clearance on my bike. It was hard starting it on the last ride so I figured I'd better get to it. Well, sure enough, the intake valves were out of spec. Would you guys check my math and help me make sure I'm doing my calculations correctly so that I get the right replacement shims?
Specified valve clearance:
Intake .006 +_.001 .16mm
Exhaust .011 +- .001 .28mm
The exhaust valves were in spec so I'll get right to the intake valves. Here are the numbers I came up with
Left Intake
<.002 or somewhere between .0254mm and zero. I don't have any feeler gauges thinner than .002
current shim size is 1.65
Right Intake
.003 current shim size 1.75 .0762mm
Doing the math: A= (B-C) + D
Where A = new shim thickness
B= recorded valve clearance
C= Specified valve clearance
D= Old shim thickness
Left Intake
A=(0.0254-.16)+1.65
A=1.5154
So, do I go with 1.50?
Right intake
A=(.0762-.16)+1.75
A= 1.666
and this one would be 1.675? or 1.65?
Available shims: 1.200mm – 3.000mm in .025mm intervals