XT Valve Clearances - Horizons Unlimited

**NCR** · #1 18 Mar 2004

HI,

Just bought a Clymer Manuel for the XT (83-89). My bike is from 2001 though... Can I use the manual valve clearances values?

Is it necessary to check valve clearances in the intervals Yamaha recomends?

Thanks and regards

**FredXTZ** · #2 19 Mar 2004

I've checked the valves on an XT600K 3TB of 1991 [22.000 km until stolen] and XTZ660 3YF of 1992 [80.000 km now] on several occasions and it was never necessary to adjust them. Except when I rebuilt the upper engine part @ 50.000 km of course.
So I would say, if you don't hear-em rattling, don't touch-em.

------------------
Fred, XTZ660, Holland.

**Steve Pickford** · #3 19 Mar 2004

Out of adjustment valves only "rattle" if the clearance is on the lose side - my K100 ticks like a clock if they're loose.

If the clearances are on the tight side however, you may well not know about it, you may only suffer a slight drop in power whilst your valves are held open & possibly being burnt away at the edges.

It's easy enough to check the clearances & easy to adjust as I believe they're screw & locknut tappets on the 600's?

Steve

**NCR** · #4 19 Mar 2004

""""It's easy enough to check the clearances & easy to adjust as I believe they're screw & locknut tappets on the 600's?"""""

I believe it is an easy task, judging by Clymer's instructions.

Anyone knows if Clymer's values are still the some for my 2001 XT 600 E???

Thanks and regards,

NCR

**Steve Pickford** · #5 19 Mar 2004

I've not owned an XT600, so cannot answer directly.

Contact David Lambeth, XT/TT expert, on

Tel: 01892 - 853913

Fax: 01892 - 853912

email: bigbluecoach"at"hotmail.com

He's a busy man I believe, it's worth your while keeping his details to hand.

Steve