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 Post subject: Idling at 3000 rpm after a hard run
PostPosted: Thu Apr 18, 2019 9:56 am 
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Joined: Thu May 05, 2016 7:37 am
Posts: 65
Location: UK
model: 750 Sport
year: 1988
Just wondering if anyone as encountered a high idle after putting there bike through its paces. It’s fitted with the standard Webber carb.
A brief rundown, I ended up doing around 40 miles in fast company all was OK until the return home, redlined through the gears coming onto a duel carriage way, then a 70mph cruise all was ok, showed for the rouderbout and noticed it idling around 3000 rpm, carried on, fine at a steady 60-70mph and on full throttle but still inflicted with the high idle, got home let it idle for a while with the odd blip on the throttle and it seemed to wonder between 2-3000 rpm, started it for a short while this morning and it’s idling around 1200rpm, I haven’t had chance yet to give it another run to see if the high idle returns.
Any thoughts
Steve


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 Post subject: Re: Idling at 3000 rpm after a hard run
PostPosted: Thu Apr 18, 2019 3:46 pm 
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Joined: Fri Nov 13, 2009 4:33 pm
Posts: 272
Location: San Francisco Bay, California USA
model: 750 Paso
year: 1987
I had a similar condition recently and after looking for vacuum leaks, cracked rubber boots, loose intake manifold bolts, worn/dirty spark plugs, carb sychronization, etc, the problem turned out to be throttle cables: sticking a little on return. Lubing the cable and throttle with white lithium solved my issue. Good luck resolving yours. :-)


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 Post subject: Re: Idling at 3000 rpm after a hard run
PostPosted: Wed May 01, 2019 9:05 pm 
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Joined: Thu Nov 02, 2017 12:16 am
Posts: 48
Location: UK
model: 750 Sport
year: 1989
Hi, I had a similar occurrence. It happened when I was parking the bike after a long ride. I was turning into the parkimg spot and was hitting the steering lock; that seemed to slightly open the throttle and keep it there. The problem resolved when I rerouted the throttle cable. Hope this helps!

P.S. Any idea how to make photos small enough to post on this site?


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