Adjusting Decompression with HRC cam.. Help!

[AtvKid4Eva]

Hey guy i just installed an HRC cam in my 05' 450r and need to adjust the decompression....i am being told to adjust the decompression to .017"...so does that mean i take my exhaust clearance which is .011" and then i set the gap between the decompression arm to .006" ? i think thats how its done but am not sure if you guys could help me out i'd appreciate it thanks

[4bidden]

It is figured as exhaust clearance + .25mm

Spec is .28mm for exhaust, so add .25 to that.

Intake - .16mm
Exhaust - .25mm
Decomp - Exhaust + .25mm

[AtvKid4Eva]

so i would add .28 + .25 and get .53mm and then stick a .53mm feeler guage between the gap on the decompression lever? that seems like it would be to loose and make it a pain to kic over...i know from experience..what is wrong?

[pro-rider46]

i thought that the specs. for the intake were .006mm and exhaust was .011mm. i am lost

[d3ktrix]

Originally posted by pro-rider46
i thought that the specs. for the intake were .006mm and exhaust was .011mm. i am lost

He's talking mm ur talking inches.

.006" = .16mm
.011" = .25mm



AtvKid4Eva---- Set ur decomp to .017"

Like u said the exhaust clearance is .011" and u add .006" to that to get ur decomp.
So with no feeler gauge in the exhaust port, a .017" feeler gauge should fit in the decomp gap.

[chad502ex]

what ever came out of our phone discussion?

[AtvKid4Eva]

well, im not sure yet becasue i havent gotten the valve cover bolt in yet at the honda dealer..should be in tomarrow and i'll let ya know..

[chad502ex]

Originally posted by AtvKid4Eva
well, im not sure yet becasue i havent gotten the valve cover bolt in yet at the honda dealer..should be in tomarrow and i'll let ya know..

good luck.