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Rubber Side Down!
› Nice day for a ride...if she would quit stalling!
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Nice day for a ride...if she would quit stalling! (Read 567 times)
meck
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Woonsocket, RI
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Re: Nice day for a ride...if she would quit stalli
Reply #30 -
07/08/08 at 18:21:39
I tried adjusting the screw but honestly I couldn't hear a difference in RPMs. So I went with the "adjust till it's fixed" method. I gunned the throttle and let it snap back. Where it was originally, the rpms dropped to where the bike almost stalled. I leaned out the mix until that went away. I kept turning clockwise until I got a backfire, then backed it up between those two points. After a 20 minute stop & go ride in 95-degree heat, no more stalling. I'll see how it goes on the commute tomorrow.
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1988 LS650
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Serious Thumper
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sold 2001 LS650 for
a 1986 XLH1100
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Re: Nice day for a ride...if she would quit stalli
Reply #31 -
07/09/08 at 06:36:57
meck wrote
on 07/08/08 at 18:21:39:
I tried adjusting the screw but honestly I couldn't hear a difference in RPMs. So I went with the "adjust till it's fixed" method. I gunned the throttle and let it snap back. Where it was originally, the rpms dropped to where the bike almost stalled. I leaned out the mix until that went away. I kept turning clockwise until I got a backfire, then backed it up between those two points. After a 20 minute stop & go ride in 95-degree heat, no more stalling. I'll see how it goes on the commute tomorrow.
Throw a new sparkplug in and check it after a tank of gas. Should be tan, white is too lean, black is rich....
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Engineers design things, Technicians make them work.
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30% of being mechanical is confidence/30% is knowing to go slow when needed/30% is looking repeatedly at what you have/10% is dumb luck
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meck
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Re: Nice day for a ride...if she would quit stalli
Reply #32 -
07/16/08 at 13:54:19
It was working fine for a few days, then the stalling came back. Generally it is after I am holding the throttle at constant speed for a while, then slow down eventually to a stop. I have already bumped up the idle speed with no effect. I replaced the vac line from petcock to carb and it seemed much better, even after a longer ride. Then today I was riding about 8 miles at a constant 40mph. When I went to slow down for a turn, the engine bogged way down, nearly to a stall, then a HUUUUUGE KAPOW backfire, then it stalled. This happens with the petcock on ON and on PRI. I went back and tried to readjust my idle speed and my idle mix, but I haven't gone riding again yet. Any other suggestions? I am supposed to be making a longish (60 mile highway speed) run tomorrow afternoon so it's getting to be crunch time.
BTW, it does seem to be much worse in hot weather. Last night after I replaced the vac line it was about 75 degrees... now it is around 95.
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mentaka
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Re: Nice day for a ride...if she would quit stalli
Reply #33 -
07/20/08 at 16:26:03
Hello,
Dont know if your still keeping trake of your post but i gotta suggestion for you.
Cant say this is gonna be the problem or even work but fingers crossed it seems to have done the trick for me for now as i was having exact same problem.
Breather tube.
Take bung off and empty it.
Sounds simple and maybe a little stupid but ive been having same problem as you on and off for about 6 mths. One day decided it was time to check breather tube and empty it if needed and like i said so far so good.
Hope this helps.
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meck
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Re: Nice day for a ride...if she would quit stalli
Reply #34 -
07/21/08 at 08:27:38
Do you mean the blow-by tube from the engine to the air box? There was nothing in there. Or, did you mean the capped drain tube under the air box? That is empty as well...
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mentaka
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Re: Nice day for a ride...if she would quit stalli
Reply #35 -
07/21/08 at 10:35:52
It was the breather tube with the cap. Shame that didnt work, as i said it seems to have done the job for me.
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meck
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Re: Nice day for a ride...if she would quit stalli
Reply #36 -
07/24/08 at 08:22:33
Looks like I found it... it was the petcock. I had the thing apart and the diaphram looked good - I gave a little suction on the vac port and didn't feel any leaks so I figured I was good. The fact that she was still stalling and bogging while on PRI also threw me. I took the petcock off again, did the mod to manual and it's nice and smooth now.
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