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General Category >> Rubber Side Down! >> Cylinder Head Nuts: to tighten or not?
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Message started by lagagnon on 09/17/06 at 19:59:47

Title: Cylinder Head Nuts: to tighten or not?
Post by lagagnon on 09/17/06 at 19:59:47

I will soon enough be doing my 6000km (4000mi) service. The Suzuki owner's manual states that the cylinder head nuts should be tightened. This is quite a job, involving the removal of all cylinder head cover bolts. I really wonder whether a Suzuki repair shop would even do that job if you brought it in for a 6000km service - it is time consuming even for them!

I did not perform this task at my 1000km service on the recommendation of others - and I was not willing to take the risk as I do not consider myself to be a great mechanic.

Any ideas on how important this job is or not would be appreciated. I have never tightened the cylinder head bolts on a very old, well worn lawn mower - why should I do it on a motorbike?

Title: Re: Cylinder Head Nuts: to tighten or not?
Post by mickthelimey on 09/17/06 at 21:50:51

If they are lose tighten them,if there is no blow by or loss of compression leave em alone,I have almost 10000 on mine never tightend them. ;D

Title: Re: Cylinder Head Nuts: to tighten or not?
Post by SavageDude on 09/17/06 at 22:10:46

I too never did tighten those nuts at 600 miles services but I did check the valves clearance. At 4000 miles I check the tighness on the 2 nuts that I have access to without removing the head cyclinder cover. They were tight as the day I bought it. The exhaust valves needed some small adjustment and the intake haven't change. At least do those services as mentioned above. ;)

Title: Re: Cylinder Head Nuts: to tighten or not?
Post by stinger on 09/18/06 at 01:13:56

i have 23,000 on my 02 and head is still tight. No oil leaks. I agree, leave it alone if it aint broken

Title: Re: Cylinder Head Nuts: to tighten or not?
Post by Kropatchek on 09/19/06 at 09:10:21

You did the job on 1000KM, now leave the headnuts alone. No leaks no work required.

Greetz
Kropatchek 8)