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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Stalling when warmed up/riding. /cgi-bin/YaBB.pl?num=1250121736 Message started by King Kashue on 08/12/09 at 17:02:16 |
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Title: Stalling when warmed up/riding. Post by King Kashue on 08/12/09 at 17:02:16 Hey everyone, I just recently got a 98 with around 22,000 miles on it. I just took it out for my first real ride on the thing and it ran really well and I was having a great ol' time until about 30 minutes into the ride, I was going down a hill at around 55mph and she stalled... I pulled off to the side, and she wouldn't start up again without me hitting the throttle some. I upped the idle a bit, but that still didn't help the problem enough (which didn't become apparent until I was back on the road heading home). I basically did the ride home revving at every stop in order to keep it from stalling (and managed to fail once on a side street). Every stop was the same it would either rev so low that it would almost stall, or it would stay revving relatively high until I hit the throttle slightly, and then it would drop to almost dead. I know cars well enough, but know jack crap about Motorcycles. I didn't have to use the choke on start up, and using it on the road definitely didn't work, so I'm guessing that the fuel mixture might be too rich (there is some discoloration on the exhaust that makes me think that as well). I haven't looked at the plugs yet to see if they're sooty; I wanted to check with folks first to see if it seems like I'm thinking on the correct lines before taking the fuel tank off, etc. (since I've not done it before, I imagine it'll be a somewhat involved "learning process" :D) Thanks in advance for your help. |
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Title: Re: Stalling when warmed up/riding. Post by verslagen1 on 08/12/09 at 17:06:34 Idle up a bit and put some sea foam in her tank. sounds like the slide is sticking a little. |
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Title: Re: Stalling when warmed up/riding. Post by justin_o_guy2 on 08/12/09 at 17:18:20 Definitely get the idle speed up, these bikes have a low oil pressure & the top end will starve at low RPM & wreck the head where the cam spins. Also, with that mileage, unless you know the cam chain has been replaced, you need to pop the clutch cover off & have a look in there. If the tensioner lets go, it is usually curtains for the engine. |
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Title: Re: Stalling when warmed up/riding. Post by Serowbot on 08/12/09 at 19:05:43 Check the vac line that goes from the back of the petcock to the right side of the carb,... If there is any gas at all in it, your petcock is broken. Very common problem,.. many options to fix it. |
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Title: Re: Stalling when warmed up/riding. Post by John_D on 08/13/09 at 01:19:22 5442554850454853270 wrote:
And make sure there's no cracks in the vacuum line! ;) |
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Title: Re: Stalling when warmed up/riding. Post by matt on 08/13/09 at 11:07:02 original tank of gas maybe? If it is try some fresh gas |
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Title: Re: Stalling when warmed up/riding. Post by King Kashue on 08/14/09 at 17:43:06 Thanks for all the advice. I'll definitely run a load of seafoam through there, and check the vacuum line. I may take it into a shop anyway and have a mechanic give it a once over, to make sure I don't miss other issues in my inexperience. Luckily it's a problem that still lets me to ride the bike home, which will allow me some experimentation in trying to fix it (knowing I won't get stranded 25 miles). |
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Title: Re: Stalling when warmed up/riding. Post by Digger on 08/22/09 at 20:22:31 If nothing you've tried works, try this before taking it to a mechanic: Crimp the petcock's vacuum line COMPLETELY closed and set the petcock to PRI. If the bike now runs good, you will need to repair or replace the petcock. |
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Title: Re: Stalling when warmed up/riding. Post by speedingman on 08/23/09 at 10:20:19 CHeck your ignition coil! Could be getting hot and loosing you spark. With that many miles though lots of things to check out also. |
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Title: Re: Stalling when warmed up/riding. Post by Duane on 08/25/09 at 08:00:26 Let us know what you find out. I had a similiar problem the other day after fixing my clutch. Now she's fine, must be those darn gremlins. Maybe I need one of those bells? ;D |
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Title: Re: Stalling when warmed up/riding. Post by King Kashue on 09/03/09 at 17:02:08 7342565952370 wrote:
Update: I had my parents visiting for more than a week, so I didn't have time to diagnose/mess about until today, but it seems at the very least, the petcock is part of the problem. I was seafoaming it this afternoon, and it would start and run okay for a bit, and then the revs would drop until it stalled. Started her back up, and when the revs started to drop, I switched it over to prime and it corrected itself and ran fine. I did this a couple of times, letting it rev lower each time (once catching it at put....put....put....put range) and each time "prime = running engine" I was planning to replace the petcock with a raptor petcock anyway, since I'm wanting to go for the "beauty of simplicity" ethic on the bike, in both visual and mechanical, but it's still nice to know the issue. I'm taking her out for a ride tomorrow morning with a friend (both of us start teaching classes next week, so one last daytime ride before the real world catches us), and will get an on the road test to confirm. |
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Title: Re: Stalling when warmed up/riding. Post by Serowbot on 09/03/09 at 17:28:32 In that case,!... Check out my new post in the Tech section, on "Testing your Petcock"... http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429 ;D |
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Title: Re: Stalling when warmed up/riding. Post by King Kashue on 09/04/09 at 13:34:09 Yep, definitely the petcock. Took it for a long ride with a friend today. Up the PCH, into the canyons, back down the PCH, and up Sunset...She ran great the whole time. I actually need to turn the idle down a bit from where I turned it up trying to adjust for the petcock issue. Muffler was hot as hell (melted a bit of my motoport pants, which isn't easy), so there's a new thing to check out, but the fuel issue is diagnosed! Thanks for the help everyone ;) |
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Title: Re: Stalling when warmed up/riding. Post by justin_o_guy2 on 09/05/09 at 09:58:40 I looked into the "Hot Exhaust" symptom. After several hours of study I discovered it is a result of hot gasses being pumped thru it. Problem solved by keeping the key out of the ignition. Other than that, if the header is blue, its time to jet the carb. |
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Title: Re: Stalling when warmed up/riding. Post by serenity3743 on 09/05/09 at 12:53:26 Hot gases going through a muffler?!?!?! That's just CRAZY! ;D I cannot say how many pairs of waterproof pants, insulated pants, rubber boots I have burned on that d**n pipe. And those motorcycle covers that have a "heat resistant panel" at the bottom, they burn just as quick as anything else. |
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Title: Re: Stalling when warmed up/riding. Post by King Kashue on 09/05/09 at 22:57:03 4D5254534E4978487840525E15270 wrote:
Yes, thank you >:( :D The header is blued, the muffler is blued. I expect the pipe to be that hot, but the muffler baffles should dissipate the heat more than that, or at least it seems, especially compared to both of my friend's other bikes, which have much cooler mufflers(my muffler was still a frying pan minutes later, whereas I could touch the muffler on his honda within a minute or so). |
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Title: Re: Stalling when warmed up/riding. Post by justin_o_guy2 on 09/05/09 at 23:02:31 Pull the plug & have a look. I suspect white, way too white. The carb may not be delivering enough fuel. You may have a jet semi plugged off ? IDK, sounds good from here |
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Title: Re: Stalling when warmed up/riding. Post by dasch on 09/06/09 at 10:23:00 [quote author=54767178747E6C776A7A1F0 link=1250121736/15#15 date=1252216623The header is blued, the muffler is blued. [/quote] Like a welding torch... Man, you are riding the hell out of it ;) Lean, it seems. As Justin said - check the plug, if white - put one size larger main jet first and test. If white again - trim the white washer a bit. Then some more. Then more... |
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Title: Re: Stalling when warmed up/riding. Post by justin_o_guy2 on 09/06/09 at 12:10:57 Im wondering when this started. Did anything get changed on the bike? Has it always run so hot? If its blue that far back, Id wonder if the exhaust valve isnt held open. Have you adjusted the valves recently? Are you sure the decomp solenoid isnt stuck? |
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Title: Re: Stalling when warmed up/riding. Post by King Kashue on 09/07/09 at 08:15:24 525745555E360 wrote:
Just got it recently, so :P 5F4046415C5B6A5A6A52404C07350 wrote:
Just got it, don't know, I haven't done the valves, I'll be sure to check the solenoid. I was planning on replacing the spark plug anyway when I did a number of other repairs/mods, so I'll deal with the carb as necessary if it's running lean. |
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Title: Re: Stalling when warmed up/riding. Post by Serowbot on 09/07/09 at 08:45:50 muffler gets hot enough to take the skin right off you.... ask me how I know... It's normal, look at car mufflers.... ten feet back fron the engine and super hot... just normal... It doesn't mean you're lean,... pipes can blue from running rich too... it just means you've been running bad or running hard... Mine blued after I had the petcock problem,... Still blue now,... I think it's pretty.... :-? |
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Title: Re: Stalling when warmed up/riding. Post by justin_o_guy2 on 09/07/09 at 09:57:30 He said even the muffler is blue. Gotta get a look at that plug. |
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Title: Re: Stalling when warmed up/riding. Post by King Kashue on 09/07/09 at 22:28:38 4F594E534B5E53483C0 wrote:
But car mufflers aren't baffled, motorcycle mufflers are. Quote:
As noted, it's not just the pipes (which is pretty normal, from everything I've seen and heard), but the muffler as well. It's pretty seriously blued. I had suspected it was running a bit lean, and the bluing built up over time, but that might not be the case. I was planning on changing the plug anyway, so it's just another thing on the list of tune up/blank slate repairs to do with the new (old) bike. |
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