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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> High RPM sputtering /cgi-bin/YaBB.pl?num=1315686935 Message started by Chadjac on 09/10/11 at 13:35:35 |
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Title: High RPM sputtering Post by Chadjac on 09/10/11 at 13:35:35 First time poster. I bought a '98 LS650 Savage earlier this year. It only had 5k miles on it and ran perfectly. Then about 3 weeks ago while riding home from work it acted like it was stalling when I hit 50 or so. It only happened a few times and seemed to go away. Now it happens all the time it gets into higher RPMs like before a shift, even just sitting in neutral and rev'ing it. I've read the 'test your petcock' and I've already changed the plug, fuel and vac line, and just today replaced the stock petcock with a Raptor. But its still doing it. So assuming I want to do this myself, whats the next thing to try? |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/10/11 at 14:33:36 Put some Seafoam in your gas tank for at least one full tank of gas. Clean (blow out) your air filter (or replace it) very very plugged up air filter can do that sort of stuff. Rap 3 times on the float bowl with a big screwdriver handle to remove a sticky float from play. If nothing changes, then you are mebbe looking at a carb teardown. |
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Title: Re: High RPM sputtering Post by Serowbot on 09/10/11 at 15:28:09 air filter clean?... if so,.. I'd guess at a sticky needle slide, or partially clogged main jet.... |
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Title: Re: High RPM sputtering Post by justin_o_guy2 on 09/10/11 at 15:37:43 FWIW, Ive been known to sputter a bit when I get too wound up.. |
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Title: Re: High RPM sputtering Post by Chadjac on 09/10/11 at 16:50:49 Thanks for the replies. I removed the air filter just to see if that helped and it didn't. I'll try Seafoam tomorrow. Forgot to mention the sputtering completely goes away if I pull the choke halfway out. But then it rev's high at a stop. |
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Title: Re: High RPM sputtering Post by Boofer on 09/10/11 at 19:53:39 Chadjac, We don't have many electrical questions on here, because there are so few electrical problems. If it were an older bike with points or a car I would say it's electrical. It seems to me you have checked the worst culprits. I believe it could be your coil breaking down or a bad plug wire leaking sparks. While it's unlikely, the compression release could be leaking a little. Just thinking out loud. I don't know for sure. hth |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/11/11 at 09:18:42 Dumb thought, but ..... Have you ever adjusted your valves? Ever adjusted your starter solenoid adjustment (lifts exhaust valves when starting) Something about doing it 180 degrees off on top dead center is ringing a faint bell, mebbe ..... I dunno, but have you adjusted your valves lately by any chance? ================ Mebbe a better way to state the question is this: What work have you done to the bike since just before this symptom begain? |
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Title: Re: High RPM sputtering Post by Chadjac on 09/12/11 at 07:59:14 Nope, before this all happened I didn't change anything on the bike as it was running perfectly. The Seafoam didn't seem to change anything. While I want to fix this myself diving into electrics or a carb teardown isn't something I'm comfortable with. I guess I'll have to take it to a local shop. |
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Title: Re: High RPM sputtering Post by verslagen1 on 09/12/11 at 09:10:27 406B6267696260030 wrote:
Removing the air filter probably made it worse? If you pull the choke and it goes away, it's a lean condition. You probably need to pull the carb and clean it. Or at least drop the bowl and pull the main and pilot jets. Seafoam is good for this, but if you got something that won't disolve, you gotta go in there. |
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Title: Re: High RPM sputtering Post by AZSGT on 09/12/11 at 13:10:35 183B3331323B3B3225570 wrote:
How would I adjust my starter solenoid Old Man???? I have recently had starting issues and figure this is as good as preventive as any? Search turned up ZIP |
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Title: Re: High RPM sputtering Post by verslagen1 on 09/12/11 at 13:18:40 78636A7E6D390 wrote:
I think he meant decomp solenoid, as you can't adjust the stater relay except with a hammer. 8-) |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/12/11 at 14:20:59 Before you rush into fixing anything else, just list what you worked on just before the symptom started. Something cause your problem to begin, and you have already fixed all the logical items so now we are looking for "other" causes. Mis-adjusted valves was just an example of what could mebbe do your symptoms, as was a decomp solenoid actuation gap setting that was mis-adjusted at the cable (but it is measured at the solenoid core). (Verslagen and you both need to read what I said, not your interpretation of it which was kinda strange really) Doing your valve adjustment accidentally 180 degrees from top dead center (it looks right, but isn't -- has been done before too) is just one of the little things that can happen that can mysteriously make your bike run like shite. Like they say, sometimes shite just happens ..... So, tell us what you worked on right before it started. |
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Title: Re: High RPM sputtering Post by AZSGT on 09/12/11 at 14:48:18 213225243B3630323966570 wrote:
I think he meant decomp solenoid, as you can't adjust the stater relay except with a hammer. 8-)[/quote] LOL funny enough I tried that when I had starting issues. I think I need to adjust my decomp too. Or not. Yesterday went out to start bike. NO GO. I put it in fifth and rolled back down the driveway, and let the clutch out forcing engine to cycle. Is this indicative of decomp issue? |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/12/11 at 14:52:29 So, tell us what you worked on right before the problem started. |
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Title: Re: High RPM sputtering Post by verslagen1 on 09/12/11 at 15:12:02 5249405447130 wrote:
As a rule, don't rotate the engine backwards, especially if you have a 4 speed. You'll bust out your starter. |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/12/11 at 15:40:14 ;D Bad Verslaggy bad bad bad .... Yep, I hope he didn't mean what he said he did, but that is a problem for me too -- I read what he says but it doesn't tell me very much information. Makes it very hard to help him any. |
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Title: Re: High RPM sputtering Post by AZSGT on 09/12/11 at 16:08:24 697A6D6C737E787A712E1F0 wrote:
As a rule, don't rotate the engine backwards, especially if you have a 4 speed. You'll bust out your starter.[/quote] In my "bike wont start" thread you told me about the issue of the engine stopping on decomp stroke and not starting. I tried doing it forward but did nothing. I even push started it, rode it. Did nothing. If I roll back just enough to move engine, it starts right up. Maybe my starter is saying so long. Any other suggestions??????? |
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Title: Re: High RPM sputtering Post by Serowbot on 09/12/11 at 17:01:09 Low battery, or check engine ground connection by the clutch actuator... ... or de-comp is out of adjustment... (look see how loose that cable is going to the left side of the head... it shouldn't be snug, but it shouldn't have a whole lot of play either... |
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Title: Re: High RPM sputtering Post by AZSGT on 09/12/11 at 17:04:47 Brand new battery (like 4 days old new) and snug ground. Will check de-comp. Thanks serow. That steak is in the mail. De-comp cable is tight. Maybe too tight. No play at all |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/12/11 at 19:22:03 This may help. Decomp Solenoid Adjustment (http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1169356966) |
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Title: Re: High RPM sputtering Post by Routy on 09/13/11 at 04:55:39 I just now looked at this thread,.....just been bypassing over it,.....not needing to read anymore stupid petcock threads. But, right from the get go, how can it be anything other than a carb problem ? It is intermittent for God sake ! And the choke fixes it ! That leaves out,...... air cleaner valve adjust decomp release adjust and IMO, any electrical He said he can't do the carb himself, and that is where the problem is. So,.....sad to say, he will need a shop to fix this. And hopefully, either he or they will inspect the tank, and install a fuel filter at the same time. |
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Title: Re: High RPM sputtering Post by bill67 on 09/13/11 at 05:07:42 Once you put Sea Foam in you have to drive it some it takes a while to work. |
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Title: Re: High RPM sputtering Post by Chadjac on 09/13/11 at 06:31:15 15363E3C3F36363F285A0 wrote:
Honestly, I did nothing before this started. I don't fix stuff that ain't broke. I work 2nd shift, and the night this started it was a cool night, around 50 or so. I took off down the road from work, got to about 55 mph and it started to die, so I pulled the choke out a notch thinking the cool air was killing it and it was fine. It didn't do it the next day to work, but that night it died on the highway going 65. I got it home and then I started to try and figure the problem out. I can hit the local shop for an air filter to see if that helps, and maybe let it run some more to see if the Seafoam unsticks something. I'm hesitant to pull the carb, but I guess the worse that can happen is that I have to take it in anyways. Thanks for all the replies. |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/13/11 at 07:15:37 Shite, no wonder this old man is getting confused -- we got two different newbies on the same thread chasing different issues. Ain't there rules against that somewheres? (Routy sez he didn't get bushwacked by the same situation, so now I feel totally stupid/bad -- and thanks for the heads up Routy, dealing with ONE set of issues at a time isn't really that bad. You are doing a good job helping them newbies, BTW no matter how young you are.) Don't you young whipper snappers know you can make somebody's aging headbone jest plain implode into grey goo doing that sort of double-talk nonsense? Hmmmmm .... how about I start addressing solutions to names as a habit, at least this way I'll be making a little better sense then anyway .... but that implies I can really remember all the details of their individual issues without backreading the thread, which ain't ever gonna happen -- I'll get them all confused. Dudes, you motivate me to do something I knew was gonna happen eventually -- I think I need to Justinificate or mebbe even go as far as full Billification since obviously I can't keep up with all the stinkin' information you are all throwing down on the same thread. Gots to protect what little cognitive function I got left, you know .... Routy's here anyway, he'll take care of you jest fine. He's young and fresh and he still has all his opinions intact and tightly wrapped together. I'm gonna go over here to my rocker and mumble to myself for a while. |
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Title: Re: High RPM sputtering Post by Routy on 09/13/11 at 08:01:00 OF, Now you got me confused,.....I got bushwhacked ?? It was hard to decyper the 2 different posters, but I did before I posted. My post was to the OP only. And I can only wish I was 65 yrs old ! ;D |
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Title: Re: High RPM sputtering Post by Routy on 09/13/11 at 08:07:48 5B5055550F0E390 wrote:
Bill, Could you supply a list of stuff that seafoam really will desolve,....that gasoline won't, excluding the typical varnish that used to build in carbs,.....that doesn't anymore,....despite what some still believe ? |
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Title: Re: High RPM sputtering Post by Chadjac on 09/13/11 at 08:28:12 2A253F24383E2D2F27293E4C0 wrote:
What all should I look for with the tank? If I install a fuel filter does it go in-between the petcock and carb? (guess that's the only place it could go) |
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Title: Re: High RPM sputtering Post by verslagen1 on 09/13/11 at 08:29:00 756E677360340 wrote:
As a rule, don't rotate the engine backwards, especially if you have a 4 speed. You'll bust out your starter.[/quote] In my "bike wont start" thread you told me about the issue of the engine stopping on decomp stroke and not starting. I tried doing it forward but did nothing. I even push started it, rode it. Did nothing. If I roll back just enough to move engine, it starts right up. Maybe my starter is saying so long. Any other suggestions???????[/quote] Sounds like you might need new brushes. I just wanted to caution you about going backwards and others that may try it. On a '95 or later, go back far enough you'll hear a sproing. That's the torque limiter doing it's job. On a pre'95 you'll hear a crack, as you're loosing teeth or the case will break. Pushing it backwards will rotate the starter and get it off a dead winding or commutator. Or cause the brushes to stick out a little further. I'd take it apart and see what's up. You might just need a rebuild kit. |
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Title: Re: High RPM sputtering Post by bill67 on 09/13/11 at 09:27:45 4D4258435F594A48404E592B0 wrote:
Bill, Could you supply a list of stuff that seafoam really will desolve,....that gasoline won't, excluding the typical varnish that used to build in carbs,.....that doesn't anymore,....despite what some still believe ? Routy [/quote] Where did that black stuff in your fuel bowls come from after you used SEA FOAM. |
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Title: Re: High RPM sputtering Post by Oldfeller on 09/13/11 at 10:36:21 Verslagen, are you still talking to the thread hijacking nonsense talking inconsistent one that doesn't belong on this particular thread? If AZSGT wants some help, he should start up his own thread and he should quit confusing and mind damaging the feebleminded helpless old people by hijacking Chadjac's thread. ( :D helpless old people like you and me) Besides, Bill & Routy's got this one well in hand now ..... they'll finish it up. (Argh, speak for yourself hepless, if you got a splitting migrane then split the thread) Yowser, I'm all hepless, mindburned and too too stewpid ta live ;) I gots Billitus a creeping up on me .... |
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