[net.cycle] Any Yamaha SR500E owners out there

allen@uiucdcsb.CS.UIUC.EDU (04/18/86)

    25 mpg!?!  I have a Honda CX500 and I get from 40 to 60.  I thought
the SR500 was a much lighter bike and should easily do as well.  Of
course ones riding style can have some effect on those figures.


BTW, my roommate has a Honda CRX and gets over 60mph.  And a CRX has twice
as many wheels.

dob@ihlpa.UUCP (Daniel M. O'Brien) (04/19/86)

> 
>     25 mpg!?!  I have a Honda CX500 and I get from 40 to 60.  I thought
> the SR500 was a much lighter bike and should easily do as well.

As I replied to the original poster, my '80 SR500 gets ~49 MPG.  His/hers 
must be broken or out of adjustment.  Rings?  Valves?  maybe.  

Cheers,
-- 
			Daniel M. O'Brien (ihnp4!ihlpa!dob)
			AT&T Bell Laboratories
			IH 4A-257, x 4782
			Naperville-Wheaton Road
			Naperville, IL 60566

gadfly@ihuxn.UUCP (Gadfly) (04/21/86)

--
>     25 mpg!?!  I have a Honda CX500 and I get from 40 to 60.  I thought
> the SR500 was a much lighter bike and should easily do as well.  Of
> course ones riding style can have some effect on those figures.
> 
> 
> BTW, my roommate has a Honda CRX and gets over 60mph.  And a CRX has twice
> as many wheels.

Yeah, it's a bug.  I got about 70mpg on my (now net.cyclist Dan Obrien's)
SR500*G*.  That last letter represents the year of manufacture (they
couldn't have started with A, but this is the explanation in the
Yamaha Factory manual).  Mine was an '80 (I think), so that puts yours
at '78.  That's good news because the early (pre-80) models had points
and a carb you could play around with (the later models had timing
elements put together with "torx" fasteners and non-adjustable jets).

From the hip diagnosis:  Check your compression.  The compression-
release may have gotten stuck, causing the exhaust valve to remain
slightly open.  Which may be moot by now, because riding any distance
under such a situation could easily fry the valve so that it no longer
seats properly.  ("The" valve.  Yep, just one.  What a joy to work on.)
-- 
                    *** ***
JE MAINTIENDRAI   ***** *****
                 ****** ******  21 Apr 86 [2 Floreal An CXCIV]
ken perlow       *****   *****
(312)979-7753     ** ** ** **
..ihnp4!iwsl8!ken   *** ***