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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Stalling /cgi-bin/YaBB.pl?num=1256656335 Message started by Bubba on 10/27/09 at 08:12:15 |
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Title: Stalling Post by Bubba on 10/27/09 at 08:12:15 Today I rode into work (30 degrees) When I started her up and tried to let the engine warm up it kept dying (choke out for 30 seconds or so). I upped the idle to keep her going because it just seemed to want to keep dying on me. When I'd fire it up again it would cough out blue smoke for just a second. Headed to work and after she warmed up (10 minutes maybe?) the bike would stall at almost every light/stop I came to. I finally would just come to a stop and keep the revs up to keep it from stalling out. I did notice that it smelled a bit like gas. Too rich? humid day for around here (40%) and cold on top of that... |
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Title: Re: Stalling Post by Routy on 10/27/09 at 08:44:06 I am not all that familiar w/ the habits of these bikes just yet, but if they have any history of "carb icing",.....and from what you describe, that could very well be what the problem is. If that is the problem, you would feel icy cold from around the connection between the carb and cyl head. To illiminate carb icing, warm up the engine at as slow an RPM as possible before taking to the road. Many other engines are equipped w/ thermostaticaly controlled"hot air intakes" to keep from carb icing. |
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Title: Re: Stalling Post by Bubba on 10/27/09 at 09:00:26 Thanks Routy but I don't think it was icing...I'm wondering if I need to lean out the air mix screw when it's cold. I've richened it up just a tad in the past week or so but this was probably the coldest morning I've ridden it. It seemed to just shut down when I'd roll up to a stop. Then when starting, I'd smell gas and have to feather the throttle a bunch to get it going again...of course, I'm just guessing here |
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Title: Re: Stalling Post by Serowbot on 10/27/09 at 09:50:58 cool air will make you lean,... humid will make you rich... Sorta' balances out... What weight oil are you using?... too thick?... PS,.. 30 degrees?... You crazy!.... :-? |
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Title: Re: Stalling Post by Bubba on 10/27/09 at 09:57:03 15-40 white bottle Rotella. I was wondering about that on the way in! Yep, 30 degrees...out here at a mile high 30 degrees really isn't so bad but after about 15 miles I was beginning to wonder...anyway, we're expecting about a foot of snow tomorrow...now THAT would be crazy... :o |
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Title: Re: Stalling Post by Midnightrider on 10/27/09 at 10:02:54 If you smell gas you have a leak somewhere. First thing I would check would be the manifold (rubber boot) Spray WD 40 on it with the engine running and if the engine speeds up you have a leak. |
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Title: Re: Stalling Post by Bubba on 10/27/09 at 10:32:39 Hmmm...I don't think it's a leak. This is the first time I ever smelled it. Plus, I should qualify it by saying that it wasn't really a gas smell just a really powerful exhaust/gas mix kinda smell (kind of like what you smell when you flood it) and that was only when I would restart after the stall I would think that if the manifold were leaking it would actually smell that way all the time. I plan to lean up the mix screw just a touch and raise the idle too before I fire it up and head home later today. It's actually turning into a rather balmy 45 degree day... :) Thanks everyone...I'll let ya know how it goes... |
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Title: Re: Stalling Post by Routy on 10/27/09 at 23:10:50 Bubba quote: It seemed to just shut down when I'd roll up to a stop. Then when starting, I'd smell gas and have to feather the throttle a bunch to get it going again...of course, I'm just guessing here ---------------------------------------------------------------------------- Bubba, I want to stress again, what you describe is exactly icing symtoms, including the gas smell like its flooding. If it ran good on way back.......in a little warmer temps, I still think it was icing ! I'm sure its not common on these bikes that I'd bet are never ridden in 30 deg temps ! :-[ |
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Title: Re: Stalling Post by Bubba on 10/28/09 at 11:10:18 Routy, you may well be right. Although I did lean up the idle mix screw before I headed home it seemed to run like a champ on the way home (about 45 degrees). Since they're calling for 15 inches of snow today there's no way I'm gonna test the theory...I guess I'll need to wait until I have a good cold day. It was weird...I didn't see any other bikes out that day???? BTW when you say to warm it up with low rpm's how long are you talking? My ride in takes about 30-40 minutes...I would have thought that it would have warmed up by then... Thanks |
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Title: Re: Stalling Post by serenity3743 on 10/28/09 at 12:58:38 Don't "warm it up with low rpms" that are TOO LOW. The idle speed needs to be 1000 - 1200 rpms in order for the top end to get adequate oil. |
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Title: Re: Stalling Post by Midnightrider on 10/28/09 at 16:12:09 A motorcycle will not idle if the plug gap is worn and too wide. |
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Title: Re: Stalling Post by Routy on 10/28/09 at 16:47:35 Icing take place when the temps are cold,.... freezing or even above. And it is the rushing wind chill factor that takes the temps of the air coming into the carb and intake to well below freezing and forming ice inside the carb and intake manifold. If the engine can possibly warm up before the icing takes place, then icing will usually not occur. But w/o a heat riser, or any kind of a hot air intake, the only chance is to minimize the air volume that is sucked into the carb while the engine is warming up, therefore why I said to use low RPMs. Once the icing has started, probably as soon as you reved the throttle a couple times, it will not thaw out, no matter how far you ride. The best way to stop it is to let the engine idle so that the heat from the engine will thaw the ice, or you may have to even shut it down, and hope the heat from the engine will thaw the icy carb and intake. I know from experience that once an engine starts to ice up, it can be very hard to stop it w/o stopping the engine. In icing conditions, the air fuel mix is really screwed up and the symptoms are exactly as you described. 1B2C3B3B386869616A590 wrote:
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Title: Re: Stalling Post by T Pol 903 LT on 10/30/09 at 16:15:44 I have had an issue with random stalling with Laurie Savage's Tangerine Thumper. Recently it had failed to start. It tried but eventually gave up the ghost. I decided that if I could get a little whiff of starting fluid into the air box she would light off. I took off the seat and saw my reflection in the bottom of the air box. I thought it was water. I took off the side cover and side of the air box only to be overcome with raw gasoline fumes. I leaned the bike over just a little and it came gushing out. I found the drain plug and drained as much as I could then leaned it all the way over and drained off the rest. There had to be 12oz of fuel in the3 box. I took off the air intake tube and it had no appearance of gas having passed through it and the carb airhorn was also dry. Curiouser and curiouser I thought. So I took the battery out and charged her up. Put it back together today and it fired right up with out the use of the choke. It idled for a while then dropped down getting ready to stall. I played with the air stop screw and kept it running figuring it needed to warm up. Throttle response was slow, again I thought it needed to warm up. I kept looking inside the air box for gas...nothing. Then I saw it, the out side of the box was getting wet. Turns out the clutch side bowl vent tube which crosses to the throttle side was leaking. Oddly enough the other bowl vent tube was not leaking. My thoughts are it needs a new needle and seat or maybe just cleaned. With all that being said check the black float bowl vent tubes and or your air box for signs of raw gasoline. The box was so full the air filter was saturated. Let me know what you find and I will report back on the actual fix. |
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Title: Re: Stalling Post by Bubba on 11/02/09 at 08:50:02 Thanks T Pol but no gas in the air box or vent tubes...I think Routy's icing theory is the most likely scenario...haven't had a chance to ride it since the snowfall. |
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Title: Re: Stalling Post by TmackDaddy on 11/03/09 at 21:13:50 50746B683D34374850040 wrote:
Ok so THIS is the exact problem im having.....have you figured out what was causing your bike to do this? Im not really mechanically inclined, but im sure if i had instructions i could figure it out....i had gas pouring out my vent tube strait down onto the concrete....having been running late i just said screw it and took off with the fuel dribbling down the frame....after about 1.5 miles the gas just stopppe dumping....i have noticed this happen only twice since i got the bike 3 months ago....is it something to do with the cold? i tried running seafoam through the bike and though that helped a little bit im still dumping fuel....if you come up with an answer i would be much appreciative |
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Title: Re: Stalling Post by jonnychop on 11/04/09 at 11:50:22 Are you warming up with the gas valve on PRI or on ? try PRI because your petcock diafragm may be leaking air. JC. |
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Title: Re: Stalling Post by Bubba on 11/05/09 at 14:40:29 Sorry JC, was that for me??? Anyway, ran it last night...28 degrees. Same thing happened twice (died rolling up to stop)...rode for about 20 minutes and it seemed to warm up enough that it quit doing it. Rode in this morning...40 degrees maybe?? Let it warm up for 15 minutes before heading out...no stalling...I'm confused since in another thread everyone's talking about cold weather riding gear (like 18 degrees cold)...what gives??? I'm wondering if it IS the petcock... |
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Title: Re: Stalling Post by T Mack 1 - FSO on 11/06/09 at 04:06:01 Std problem. If you pull the choke knob out it's too rich. Basically you have two choices to fix it: 1) Raise idle speed up a little for the first mile ot two. This works best if you have a Tach so you adjust the RPM's back to where they belong. 2) Make a shim to stick in between the idle screw and the little tab that it bumps up against to rasie the idle until you pull the shim out. I did this and it worked great. I took a little piece of magnetic material (flat stuff they put on those free hand out ad's & business cards). I put a piece of thread on it then hung it on the fuel hose. After the first mile you will notice the idle up and you just reach down, pull on the string and it comes off and then the string will let it dangle there for next use. I will note that the fixer '86 Sportster I got in July has a Mikuni carb that has a staged choke. First knotch out only raises idle speed (very handy in cold weather). And, it has it's own adj screw. Next few knotches are std choke operation. |
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Title: Re: Stalling Post by justin_o_guy2 on 11/06/09 at 08:37:12 I took a little piece of magnetic material (flat stuff they put on those free hand out ad's & business cards). I put a piece of thread on it then hung it on the fuel hose. After the first mile you will notice the idle up and you just reach down, pull on the string and it comes off and then the string will let it dangle there for next use. Clever..I Like clever. |
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Title: Re: Stalling Post by babyhog on 11/06/09 at 10:31:53 2D3234332E2918281820323E75470 wrote:
Justin - you need to use your Quote button. I was reading your post thinking 'I just read that', but it looks like you wrote it yourself. |
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Title: Re: Stalling Post by justin_o_guy2 on 11/06/09 at 10:55:38 Ooops, sorry Piglet..I do cut & paste snippets a lot. I just kinda figured people would say "Hey, I just read that. I bet thats a quote & hes gonna have something to say about that one little piece of the previous posters comments" PLace that stuff between the quotation marks in a Thot Balloon over a drawing of yourself, thats what I was hoping for.. :) |
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Title: Re: Stalling Post by babyhog on 11/06/09 at 11:14:54 77686E6974734272427A68642F1D0 wrote:
But the Quote button also reminds readers "who" said it, and I don't have to scroll back up to see who you are responding to. You can also delete the information that you don't want to reply about, if you are only commenting on a small piece. No biggie, though, I'm just picky that way... ;) Or lazy... |
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Title: Re: Stalling Post by Serowbot on 11/06/09 at 12:04:33 You tell'im Piglet!... Straighten his butt out!... Shape up, n' fly right!.... I been wantin' tear into JOG for a while now,... just couldn't think of a good reason why... Whew!... I feel better now... :-? ;D ;D ;D Kidding bro!... Justin,... There's a quote button on the post reply page, top row of icons, (looks like a piece of paper with an arrow pointing out from it).... Cool huh?!!!... I only just figured it out a couple of weeks ago, after three years here... |
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Title: Re: Stalling Post by Tonydtiger1971 on 11/06/09 at 14:40:05 It was about that today on the way to work, bbbrrrr. Had to keep my legs close to the engine to keep them warm. |
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Title: Battery Post by nicholas on 11/06/09 at 15:12:47 Hey About 4 weeks ago I had similar problems to the OP - it has started to get really cold here as well, but not too cold........single digits in celcius - anyway - I bought a battery charger <2-4-6 amp>...... 3 weeks ago I took the battery out and charged it for 12+ hours - at 2 amps, once charged the system went into float mode - long story short the bike runs perfectly now - I think the colder weather might be wreaking havoc on your bikes little charging system........if you dont alreay have a charger go grab one - you will most likely need it in 2010. cheers |
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Title: Re: Stalling Post by justin_o_guy2 on 11/06/09 at 17:25:13 7167706D75606D76020 wrote:
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Title: Re: Stalling Post by Bubba on 11/09/09 at 07:54:09 Hey Nicholas, I need to get a battery tender anyway so I'll take your suggestion and go get one. The "Battery Tender Junior" is the one I'm lookin' at. 28 bucks with coupon and tax...I think it will be money well spent... Thanks BTW, it was 80 degrees this past week...from 22" of snow to 80 degrees in 3 days....ya gotta love Colorado.... |
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Title: Re: Stalling Post by bill67 on 11/09/09 at 08:05:31 Nicholas got a battery charger not a battery tender. |
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Title: Re: Stalling Post by Bubba on 11/09/09 at 08:14:43 Thanks Bill, I know he used a charger but the one I'm looking at will do what needs to be done...Hopefully, the tender I'm looking at will be better for my use. I don't think my battery is that far gone...just needs some TLC |
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Title: Re: Stalling Post by nicholas on 11/09/09 at 11:38:15 Did you try charging - did it solve anything ? |
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Title: Re: Stalling Post by Digger on 12/17/09 at 19:57:28 655245454616171F14270 wrote:
I similar thing started happening to me (and only in cold weather, too) a few years back: http://suzukisavage.com/cgi-bin/YaBB.pl?num=1152108113/7#7 Bottom line: a faulty petcock was causing a rich condition. Yours sounds like a rich condition. |
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Title: Re: Stalling Post by Bubba on 12/18/09 at 06:47:55 Thanks Digger, Funny...since I put on the new exhaust and fiddled with the air mix the thing has been running fine. Even in the super cold temps we had a couple weeks ago! I have the stock air filter and jets and a half spacer. I'm going to go to the Harley dealer near me and see if they have a take off Dyna. The pipe I'm using now is still giving be some BIG pops (more shotgun like then rifle like) between first and second shifts. It's almost a straight pipe but has some kind of resonator/baffles in it that give me a little bit of backpressure. I do kinda like the sound but my wife thinks it sounds like a huey now... P.S. if I don't like the sound of the dyna I'm going to jet up and see what I get...I noticed you're right down the road from me...if I run into any troubles I may pick your brain in the future... |
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Title: Re: Stalling Post by justin_o_guy2 on 12/18/09 at 10:12:34 You can pick his brain here. You just want to see if his garage is really that spotless,. Dont call him first, just show up & see if you can catch him with a teaspoon of dirt in the floor. |
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