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 Dealer explains why he's quitting Piaggio brands

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pokeyjoe
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Fri Feb 05, 2016 6:23 pm

pauldaytona wrote:
John, Your bike ran good while it slept inside and was a bit warmer maybe?

No.  Even when I go out to the bike after work (temp around 70F), it will do it.  I'm not so sure it's temp related.  It may be tied to how long the bike has been sitting.  Maybe it's fuel pressure or something.
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pokeyjoe
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Sat Feb 06, 2016 1:45 pm

The bike has been sitting for a couple weeks while I make some modifications (speed bars and rearsets).  I started it today and no problems at all.  No surging - no nothing.  I took it for a ride and it ran like a champ.   Time to throw in the towel.
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pokeyjoe
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Tue Feb 09, 2016 7:36 am

Damn. Three days into riding daily and the surging is back. WTH is going on???
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MalG
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Tue Feb 09, 2016 11:02 am

Johannes' V7 II (3,000 km on the clock) is still doing the same - rough idle always, surging idle on start up with the tacho needle vacillating between 1 & 2,000 rpm, an occasional stall, but a stall guaranteed if a finger touches the throttle. 2 minutes warm up is not long enough to fix the problem, nor is 5 minutes. The loss of revs on decel is enough to stall it - first corner out of the garage, second corner out on the road, the first few sets of lights & more. Very frustrating for him.

We'll take a copy of the map up at the Shed on Thursday (now that'll be the blind leading the blind) and check some other simple things - dirt in the airbox? fuel hoses? Any other suggestions for the ham-fisted ignorant would be greatly appreciated. It's a 45 minute ride to the Shed from his place though the suburbs, so he may require some soothing first off. We'll see.
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pokeyjoe
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Tue Feb 09, 2016 4:26 pm

My bike doesn't care what map is loaded. I've got some Rexxer thing in there now. Runs great after the initial wierdness.
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beetle
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Tue Feb 09, 2016 4:33 pm

Wait. Are you still getting weirdness even with the Rexxer map?
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pokeyjoe
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PostSubject: Re: Dealer explains why he's quitting Piaggio brands   Tue Feb 09, 2016 6:32 pm

Yes. It doesn't matter whether its running the stock map or the Rexxer. Its becoming intermittent, though. It was surging all the time. Then I let it sit for about three weeks. Next three starts were fine. Then it surged again. Coming home from work today, it was fine when I started it.

When it surges, it's only at idle. If I crack the throttle, its fine (even cold). I think something is up in the throttle body. Maybe the butterfly valve. Maybe there is some sort of a bypass that controls the idle when the butterfly is closed. I don't know.

Debris stuck in there somewhere?
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Dealer explains why he's quitting Piaggio brands
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