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Main Area => General GS500 Discussion => Topic started by: bombjack on January 23, 2010, 07:56:43 AM

Title: Misfiring and odd sound -SOLVED!
Post by: bombjack on January 23, 2010, 07:56:43 AM
Hi,

I've just finished cleaning my carbs and reassembling everything. Now the bike is difficult to start.
When I got it started it ran fine but with an occasional misfire followed by a short "pfft" sound. Kinda like the sound of air escaping fast.
What's going on?
Title: Re: Misfiring and odd sound
Post by: PachmanP on January 23, 2010, 04:39:43 PM
Carb boots on securely? Bumped a hose somewhere?

You can try running it and spraying starter fluid(??) around the carb and if the revs jump you have an air leak
Title: Re: Misfiring and odd sound
Post by: black and silver twin on January 23, 2010, 08:44:28 PM
how much oil did you put in? should be 3 quarts for e model 3.5 for f model with oil cooler, too much oil will cause excess crank case pressure
Title: Re: Misfiring and odd sound
Post by: bombjack on January 24, 2010, 12:11:05 PM
Solved it!

OK, it was completly my own fault.  :embarrassed:
I had just cleaned and synced the carbs and everything was running perfectly with the carbtune attached. I then realized that I forgot to reinstall the vacuum rubber plugs  :cookoo:
Why did'nt I check that before? Would have saved me several hours...