My bike has 137K miles, and symptoms of surging, difficulty in balancing TBs and increasing idle speeds has been present for about 15-20K in retrospect. . . The shops and I failed to diagnose the true problem until I noticed the chatter on this last tune-up. (Kit Sold)
Did the repair yesterday (Kit Installed).The shafts and bearings were worn about equally; minimal wear on the right TB, and I’d guess about 40 thousandths on the left, mostly confined to the pulley side of the shaft. (That’s an estimate – it felt a little more wiggly than my exhaust valve clearances, which is 30 thousandths). The wear was much less than I expected, certainly less than that illustrated. But the bike seems to run much better, with little to no surging, and repeatable TPS measurements. I think that fixed the problem. I expect that having new shafts will slow the wear on the associated bearings also.
Thanks again for your expeditious service and help.
EXCESSIVE WEAR ON SHAFT CAUSES SLACK WHICH IN TURN WEARS THE THROTTLE BODY BUSHINGS. BUSHINGS ARE INCLUDED IN KIT.
We also have new throttle bodies in stock. Check our prices.
THROTTLE BODY REBUILD KITS
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