Re: Lets get back to oilheads...throttle body question

[Robert Silas <robert.silas@xxxxxxxxxxxx>]

John,
Did you check the choke cable sheave???   Sometimes its full of small gravel bits. On mine, with the same mileage the throttle shafts are OK.
Bob Silas
  ----- Original Message ----- 
  From: John Van Deren 
  To: oilheads@xxxxxxxxx 
  Sent: Thursday, September 08, 2005 4:54 PM
  Subject: Re: Lets get back to oilheads...throttle body question


  Thanks, Pascal, et al

  I thought (hoped) replacing o-rings would solve my problem...not so.  
  The throttle bodies seem to synch ok under load, but idle is 
  erratic...bypass screws still widely apart to balance.  I'll check shaft 
  play tomorrow, spray some carb cleaner at them, and clean out the bypass 
  screws (maybe there's a bad o-ring in there).  Throttle stops seem 
  tight, so I don't think there's any sense in trying to zero them if the 
  butterfly shaft bushings are worn out.  Many thanks.

  John Van Deren
  Montpelier, VT

  Pascal Voury wrote:

  >Hi,
  >
  >|  Today I was adjusting the throttle body synch on my 94 RS (110K miles) 
  >|  and noticed that the right brass air bypass screw needed to be almost 
  >|  closed (clockwise) to attain balance on the Twinmax. The left screw is a 
  >|  couple of turns out.
  >
  >I noticed the same pb a few 10000 miles ago.
  >I just checked the tubes (never did that before) and found NO
  >O-ring between one tube and one of the throttle  body.
  >Since I bought the bike new in '98, there probably never ever was one.
  >Or the engine ate it -).
  >
  >That was enough to cure my problem, and it's a cheap check before the usual
  >(butterfly wear) suspect.
  >
  >
  > Pascal

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End of oilheads-digest V2 #210
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