[ST] RE: st-digest V2001 #731

[Gerrit Herbst <Gerrit@xxxxxxxxxxxxxxxx>]

Larry wrote:
>I have just turned 49,000 miles on my '99 ST.  Unfortunately, I seem to
have been a victim of
>valve seat wear as at my 
>last service I was informed that some of the valves had reached the limit
of adjustment (no
>thinner shims are available) 

Larry, 
I concider 49000 miles to be a lot for a motorcycle. Were I live, it is
*very* hot for at least 9 months of the year which cause bikes to generally
run slightly hotter than in other parts of the world. I have a friend with
bike and engine rebuilt shop and according to him the avarage milage between
complete rebuilts on the Jap bikes he works on is 35-40000 miles. I looked
through his invoice/jobcard book and after some statistical analyses I found
that to be true. The highest miles for a first time rebuilt was 60000 on a
'94 Blade but they had to replace almost all of the internal components
including sleeves and pistons.
There were 4 BMW 4cyl 1000cc's for rebuilt during the last year ALL with
less than 50000 miles.

Regards
Gerrit Herbst

'01 Yellow RS (RIP)
'01 Yamaha XJR 1300
'02 RS On order

South Africa



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