Running problem.

discussions specific to the 750 Paso

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desmoluci
Posts: 35
Joined: Fri Jul 04, 2014 10:57 pm
model: 750 Paso
year: 1987
Location: USA

Running problem.

Post by desmoluci »

Ran the bike through the gears pretty hard today, and when I backed off it started running on one cylinder. When you open the throttle more, it starts running on two again with an occasional backfire through the exhaust. Changed plugs and no change. Anyone have any ideas what the problem may be?
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Derek
paso grand pooh-bah
Posts: 768
Joined: Thu Nov 03, 2011 10:13 am
model: 907 I.E.
year: 1994
Location: Scotland

Re: Running problem.

Post by Derek »

Blocked idle jet?
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)


Scotland
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paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: Running problem.

Post by paso750 »

do check the voltage at the coils and CDI units and the wiring mod in the FAQs.
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Brutus
Posts: 257
Joined: Sun Jan 16, 2005 12:00 am
model: 750 Paso
year: 1989
Location: The Netherlands

Re: Running problem.

Post by Brutus »

I was thinking of the coils also. Be sure to check corrosion on the pins where its connected to the wiring loom. Had a simular issue couple of years ago. Some sandpaper on the connection pins and it was running on both cylinders again.
Léon
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desmoluci
Posts: 35
Joined: Fri Jul 04, 2014 10:57 pm
model: 750 Paso
year: 1987
Location: USA

Re: Running problem.

Post by desmoluci »

Thank you, I'll start with the coils then to the carb. Sorry for the late reply, haven't been online for awhile.
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ducinthebay
paso grand pooh-bah
Posts: 1323
Joined: Sat Sep 03, 2005 12:00 am
model: 750 Sport
year: 1990
Location: SF Bay Area

Re: Running problem.

Post by ducinthebay »

I agree with the plugged jets theory.
Phil
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
Mc tool
paso grand pooh-bah
Posts: 1874
Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: Newzealand

Re: Running problem.

Post by Mc tool »

ducinthebay wrote:I agree with the plugged jets theory.
Phil
Me too :)
I wish I was young again............Id be heaps smarter than last time
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