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Need advice on a new problem!

  • Thread starter Thread starter maparker
  • Start date Start date
M

maparker

Guest
1981 GS450Tx been running and idling beautifully the last 2-3,000 miles until last night....

I accidentally ran the GS completely out of gas yesterday. I have of course been on reserve before, this time I ran it out of the reserve too. I managed to limp it along a little further by putting it on Prime and filling the float bowls as much as possible. I filled it up, rode on to work and thought I was fine. On the way home I was on the highway going about 70 mph uphill and it started to dog badly. I limped to the side and sputtered along on the shoulder to the next exit. I could start it, but any time I try to accelerate it bogs badly. I rode the 3 miles home, but it felt like it was running on only one cylinder most of the time.

I determined the problem is with the right cylinder (as you sit on the bike) because if you pull the left plug wire it will barely run and if you open the throttle it dies. In contrast pull the right wire it'll idle and accelerate better than you would expect running on one cylinder.

My suspicion is that I sucked something up into the right carb from the bottom of the tank, but before I pull the carbs I wanted to be sure there wasn't anything else I should be checking.

Any advice/guidance would be appreciated!

Best,
Parker
 
Maybe

Maybe

I think you might very well be right. I'd suggest you remove the air mixture screw and shoot some carb cleaner down in there (while the engine is running). That may do the trick but rebuilding the carbs is really a better fix. By the way, protect your eyes and your bike from the carb cleaner; that stuff will ruin your eyes and your paint if you're not careful!!
 
You will need to clean the carbs, I had something simillar happen to me
 
It seems to idle OK then cut out as I crack the throttle so I am assuming its either in the pilot or main circuit? Anybody have suggestions on exactly where I should look for the clog? I'm guessing it was just a bit of rust or other sediment that snuck through the filter in the tank...

Thanks,
Mark
 
This is just a guess, and I am by no means an expert, but since you ran the carbs dry could you have a stuck float that won't rise?
 
Cajun Cycler said:
This is just a guess, and I am by no means an expert, but since you ran the carbs dry could you have a stuck float that won't rise?
Click to expand...


Never thought of that...maybe a little tappy tappy, tap on the side of the float to see if that does anything tonight!
 
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