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Idle problem

  • Thread starter Thread starter jdajani28
  • Start date Start date
J

jdajani28

Guest
Hello,
I have a 1982 Suzuki GS650 GLZ, it sat in my garage last winter with Shell 93 gas in the gas tank with Gas stabilizer, and auto battery charger during winter. I have been starting it since spring this year and it started fine with no issues. Last weekend I took it out for a ride and as soon as I shifted down to the first gear at a stop sign the engine stopped running, I was able to start it back again, but every time I shift down to first gear to stop it stops. Not sure if it?s old GAS or something else. Any suggestions are highly appreciated.
Thanks

Jay
 
When you say you been "starting it since spring", have you been riding it much? or has it been sitting?
Try fresh gas with a good dose of Seafoam or similar to see if you can clean out any gunk in pilot/low speed circuits. For now, turn up idle stop screw to 1600 rpm so it maybe won't stall- it takes a while for cleaner to do much; sometimes it won't do enough.
 
What you're saying is that it won't idle? Does it ever idle? does it idle with the choke on? Or does it have something to do with first gear? the other gears are fine but in first it quits? (this makes no sense) Or does putting it in any gear kill it, like the clutch is dragging? You mean it quits as you roll to a stop or it quits when you are stopped and put it in gear?

Really hard to understand your question.
 
What maintenance have you performed? Carbs cleaned with new O-rings? Valve adjustment? Air filterer cleaned? Carb vacuum sync? etc... You can't diagnose running problems until all the maintenance is up to date.
 
I have been busy and I haven't been riding it much this year. It has been sitting in my garage.
 
I start it with the choke on and then after 5-10 minutes I turn off the choke and it stays running with no issues, but as I roll to stop while shifting gears down, it quits at a complete stop, it does not idle.
 
If you downshifted into neutral, would it hold its idle at full stop? If yes, you might have a clutch that doesn't fully release.
When these things warm up, they need very clean idle circuits to keep engine running. Update your signature (user CP stuff top left on this page)- might be a member close by.
 
Hello,
Please let me know the proper way to Seafoam my GS to ensure the best cleaning possible in an effort to avoid the hassle and expense of removing, breaking down, re-assembling and having to synchronize the motorcycle carburetors.
Thank you,
Jay
 
You sure it's not a clutch problem ? (I did ask about getting into neutral to rule clutch out)
Seafoam is worth a shot at $8 a can BUT it doesn't work miracles. When bike sits with old fuel in carbs, the ethanol (high fructose corn syrup wantabe) does nasty things. Next time you go to start bike, you pull up all this gunk deep into the tiny passages of carbs idle circuits. Very hard to for any cleaner to get at it -that's why you might have to do the "
removing, breaking down, re-assembling" stuff.
But try a good dose of Seafoam with fresh gas (drain old stuff and put in car). Best to go for nice ride with lots of accelerating and decelerating and see if you can get the seafoam to attack.
 
What is the ratio of seafoam to a gs650 GLZ full gas tank? Also, can I add seafoam to oil, if so How many OZs should I add to it? I will give it a shot this coming weekend, Michigan weather permitting. I will report next week. Thank you so much for your help. Jay
 
Last edited:
jdajani28 said:
What is the ratio of seafoam to a gs650 GLZ full gas tank? I will give it a shot this coming weekend, Michigan weather permitting. I will report next week. Thank you so much for your help. Jay
Click to expand...
I'd probably opt for 8 oz of Seafoam in 3.5 gallons of gas- run it for a while (half/hour at least) then let it rest a bit before riding again, Ride it hard the second go. It likely will have even poorer idling during this event so plan your ride accordingly (open country) to keep things safe
 
Why is it a hassle to do the carb cleaning properly one time instead of constantly having issues? It will take you no more than about 4 days and gives you time to do the other maintenance you need to do (valve adjustments)
 
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