Cams

odie · Post by **odie** » Mon Jun 06, 2022 2:37 pm

Hi all had the cams out for the valve service the other day and foolishly measured the cam lobes. Haynes manual says the limit is 32.9 mine are all 32.5 - 32.6 on the inlet cam. Anyone else measured theirs to see if this is normal. The exhaust cam lobes were all 33. somat so seemed ok. I cant see any appreciable wear on the inlet cam. but 0.3-0.4 mm seemed a lot

Post by **creedxup** » Mon Jun 06, 2022 4:40 pm

The genuine Yamaha manual has the lower limit to be 32.45mm for the intake, yours is bigger than this so is OK.

Best to download the genuine manual via the site in the workshop section

odie · Post by **odie** » Mon Jun 06, 2022 10:15 pm

Cheers chap will download the genuine one. Haynes nearly good enough.

Post by **creedxup** » Tue Jun 07, 2022 6:53 am

No problem.

The manual download is in the tech data section

odie · Post by **odie** » Wed Jun 08, 2022 5:14 pm

Its probably just me or is the manual in the tech section only small and does not cover the cams, or it there one somewhere else. Yup you right I am that thick.
Cheers

Post by **creedxup** » Wed Jun 08, 2022 5:35 pm

Download the largest file in the service information section, the 89/90 is 10MB, the RU one is 12MB

Post by **creedxup** » Wed Jun 08, 2022 5:54 pm

Just had a look, you want the 89/90 service manual 19MB file, it should be 446 pages

odie · Post by **odie** » Fri Jun 10, 2022 4:44 am

Cheers creedxup if you lived nearer I would buy you a pint mate. You saved me a fortune in wasted time getting new cams that would be the same as the ones I have.

Post by **creedxup** » Fri Jun 10, 2022 12:34 pm

No problem buddy

Exup 1000

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