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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> She starts, stays revved for a few.... /cgi-bin/YaBB.pl?num=1344350026 Message started by TS on 08/07/12 at 07:33:46 |
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Title: She starts, stays revved for a few.... Post by TS on 08/07/12 at 07:33:46 Good morning all, I have installed another carb and petcock (my original ones were gunked up from sitting for years). She now will start, but only stays started for 10 to 30 seconds, then dies. I smell gas and she sometimes backfires a little. The replacement carb and petcock I bought off of Ebay. Oh yea, I noticed a little gas leaking out of the vent tube (at first try to start) then it stopped...but still smell more gas than I think I should. Had to keep it parked outside instead of in the garage because of the fumes. Thanks so much for your help. TS |
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Title: Re: She starts, stays revved for a few.... Post by Serowbot on 08/07/12 at 09:36:55 You're doing the right things.. replacing the right stuff... ... but something ain't right... If you replaced the petcock with a stock one, was it a new one?... If mot,.. do this test.... Test your Petcock,.. don't just turn it to Prime.. (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1) If that ain't it,.. the problem is in the float bowl... leaky floats, or dirty/worn float needle/seat... |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/07/12 at 10:08:57 Thanks Serowbot. I went to the link and will be able to give it a try later today. Both the carb and petcock I bought off of Ebay are used and apparently from the same bike. I'll do the checks like your link said to check the petcock. I really appreciate the info and I'll post the results. :) Hopefully it will work. Thanks for the prompt reply! TS |
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Title: Re: She starts, stays revved for a few.... Post by Serowbot on 08/07/12 at 10:57:41 7A6C7B667E6B667D090 wrote:
If mot,.. ;D ;D ;D... If not,.. do this test.... ;)... Bad aim on the N target... ;D... |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/07/12 at 11:04:53 haha...I knew what you meant... :D Thanks again for the quick reply and thanks for knowing so much and sharing it with us. TS |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/07/12 at 15:35:04 ok...I did the petcock test and she starts a little easier and runs pretty smooth for about 10 seconds and as I twist the throttle to keep the rpms up she dies. So would this mean it is fuel starvation? No more gas smell, so it looks like I need to replace the petcock with the raptor either way? Or is it something else? Could it be the floats? Do I need to tap on the float bowl? It feels like I'm almost there, yet I'm so far away from getting her on the road. :( TS |
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Title: Re: She starts, stays revved for a few.... Post by Serowbot on 08/07/12 at 16:54:48 a. When you tested it,.. did you block the vacuum tap on the carb?... b. Yes,.. if the gas smell is gone, or way less, and it's at least idling better,.. you need a new petcock... Switching to a Raptor, is cheaper and more reliable, by far... but it is manual... so you should turn it off when you park..(PS. I never turn mine off, and it's fine.)... You're getting there... don't give up, we'll help.. ;)... |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/07/12 at 20:03:39 Hey Serowbot...you guys on this forum are lifesavers! It is a wonderful thing to have such a place where information is shared and help is there when one needs it. You guys and girls ROCK! I tapped on the float bowl and tried again...she started and idled much better, but as soon as I twist the throttle, she still loses power and dies. It is WAY better than before (because of your help), it is just that now I need to figure out what is happening. If I get a raptor, do you think that will also solve the other problem of dying when I give it throttle? It really, REALLY sounded good to hear her start and STAY started...it has been a long time since I've heard that sound. It felt good. Thanks so much for your help and hopefully, with your help and the others on this forum's help, I get her going. :) Thanks again. TS |
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Title: Re: She starts, stays revved for a few.... Post by rfw2003 on 08/07/12 at 20:07:02 2D202A382F3C3535590 wrote:
Sounds like your float needle is sticking or leaking around the seal. You may need to drop the bowel on it and give it a good clean up and check the float needle and seat. The Raptor is a good thing to change to if you don't mind the manual style petcock. Myself I prefer them as that's what I've always had, plus the added benefit of no vacuum related issues to ever crop up on it. |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/07/12 at 20:18:16 Hey rfw2003...thanks for the info...do I need to drain the tank or can I just shut off at the petcock? Thanks again for the help. TS |
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Title: Re: She starts, stays revved for a few.... Post by rfw2003 on 08/07/12 at 20:21:50 since you still have the vac operated petcock you don't need to drain the tank, just leave it in the ON position and it won't flow since the bike isn't running. R.F. |
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Title: Re: She starts, stays revved for a few.... Post by justin_o_guy2 on 08/07/12 at 23:28:23 Please, do not drop your bowel.. the bowl, on the other hand, could be a good idea.. |
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Title: Re: She starts, stays revved for a few.... Post by rfw2003 on 08/07/12 at 23:38:46 352A2C2B3631003000382A266D5F0 wrote:
good catch there JOG, must be more tired then I thought I was ;D |
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Title: Re: She starts, stays revved for a few.... Post by justin_o_guy2 on 08/08/12 at 00:06:11 My Doctor, God bless her, gave us several recipes. When the instructions were "Mix the dry ingredients in a Bowl" she spelled it bowel,., When I was reading thru them & saw that, I couldnt help but howel,, :) |
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Title: Re: She starts, stays revved for a few.... Post by youzguyz on 08/08/12 at 05:31:25 If you just let it idle without cranking the throttle, does it stay running? Thoughts.. just getting enough gas to idle. Try to up the rpm and it starves out. "new" petcock has a issues? What does it do if you just leave it on Prime (or is that what you are doing already?). The thing here is to eliminate things and I can't tell all that you have done yet. I would put it on Prime, start and see if it will keep running on idle. If it starves out, pull the fuel line from the carb and see if you get good flow with it on Prime. If not, check the line back to the petcock. If not that, pull the petcock and see if the screen is clogged or some other obstruction. (clean it out with carb cleaner). Or am I not hearing what you are saying? I got to get up there and run Lime Creek and 1431 again. Fun roads! |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/09/12 at 09:04:06 Hey youzguyz...yes...when I just let it idle it is ok. When I throttle it is when it dies. I've tried the prime and reserve positions and wiith choke out. When I push the choke in, it dies. Installed a new gasline wiith inline filter previous to installing the replacement carb and petcock. I'll check the flow from petcock and see what happens. Thanks for the reply. 1431 is a great road to run. 8-) TS |
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Title: Re: She starts, stays revved for a few.... Post by youzguyz on 08/09/12 at 10:53:33 I'm thinking two things here by it dieing when hitting the throttle: 1. Not enough gas getting to carb. Starves and dies 2. Not enough air getting to carb. Goes way rich, floods and dies. So far, been looking at #1. More on that. If you have good gas flow coming out of the line (with petcock on prime), hook it back up to the carb. Open the bowl drain, let it empty, then put the petcock on prime again and see if you have good flow out of the drain. If so, the float valve is staying open far enough to let plenty of gas in. If it barely dribbles out of the drain, but you had good flow from the line, there is something wrong with the float valve. There is a screen that is part of the valve, and that could be clogged up. #2: If the slide in the carb is stuck, or won't rise for some other reason, you won't get enough air through the carb and it will go very rich. Mine kept running when I had that problem, but it sounded sick when I cranked on the throttle, and the bike would not go over 30mph. You can try tapping the slide compartment when you open the throttle, but the only way to tell for sure if it is stuck, is to watch it, which means pulling off the boot between the air box and carb so you can see it. You bought a used carb. I really doubt it was opened, cleaned and checked before they sent it out. "This came off a running so and so bike". When? How long did it sit? Who knows? |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/09/12 at 13:16:29 Hey youzguyz...when you say the slide in the carb are you talking about the throttle valve or "butterfly" in the carb? If so, it was working freely when I tested it prior to installing. it moved smoothly and freely. Can you tell me where the screen is on the float valve? and can I get to it without taking off the carb? :) I really appreciate your help trying to get it running again. Thanks. TS |
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Title: Re: She starts, stays revved for a few.... Post by CalisOsin on 08/09/12 at 13:28:48 TS, I would take a look at this thread http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1098869040. In the second post in the exploded view, the screen is number 19. The slide is number 9. Scroll down a little in this thread and there is a nice view http://suzukisavage.com/cgi-bin/YaBB.pl?num=1309246277 |
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Title: Re: She starts, stays revved for a few.... Post by verslagen1 on 08/09/12 at 13:41:59 Yes the screen will be 19 and it should be attached to 20. remove the floats, remove a screw and clip, then pull out 20. Usually, a sea foam treatment to the gas will take care of a sticky slide. but it sounds to me that you have a clogged main jet (18). |
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Title: Re: She starts, stays revved for a few.... Post by youzguyz on 08/09/12 at 13:50:20 626F657760737A7A160 wrote:
CalisOsin is correct on the parts I was referring to. The slide is that big round cylinder that slides up into the top of the card. You can get to the screen, float, etc, by dropping the carb bowl without taking the carb off the bike. HOWEVER, it is awkward to work that way (upside down), and too easy to drop stuff that will roll to parts unknown. The most I would do if just dropping the bowl would be to make sure the float is moving OK. Maybe pull the jets to see if they are clear. Maybe lightly spray some carb cleaner down the fuel line hole to see if that helps clear anything out. (What you want to do is clean the screen the other way, from bottom to top, but the float and valve and stuff are in the way) To get to that screen, you have to take off the float. Easier if the carb is off the bike. |
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Title: Re: She starts, stays revved for a few.... Post by CalisOsin on 08/09/12 at 14:33:58 Also, you might invest in these. (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1307376830) That way you don't have to worry about boogering up the crappy screws it has in it next time. |
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Title: Re: She starts, stays revved for a few.... Post by justin_o_guy2 on 08/09/12 at 17:33:02 Id get the tube off the carb so I could see the slide in action. |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/10/12 at 13:46:56 All of you guys are so cool! I hope to try and work on it sometime this weekend. I will post the results. :) When you say to see the slide in action...what exactly am I looking for it to do...slide...up and down? That probably sounds silly, but I'd like to be sure what I'm looking for it to do. :-[ You all give really good instruction and just hope I am able to actually carry out those detailed instructions. I really appreciate all of you guys help. Thanks again! TS |
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Title: Re: She starts, stays revved for a few.... Post by TS on 08/10/12 at 13:49:00 oh yea...can I use any carb cleaner or do I need to get something special? I don't want to use the wrong thing. Thanks. TS |
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Title: Re: She starts, stays revved for a few.... Post by rfw2003 on 08/10/12 at 16:11:22 616C667463707979150 wrote:
as long as you are not getting it anywhere near the rubber parts like the diaphragms then you can, other wise completely diss-assemble the carb before you use carb cleaner on it. If you do a complete diss-assembly when you go to put the TEV back in make sure it's completely clean, meaning not even a finger print on it, or it can cause issues. R.F. |
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Title: Re: She starts, stays revved for a few.... Post by youzguyz on 08/10/12 at 17:07:28 TS, Carb cleaner.. like rfw said, keep it away from the rubber parts. That is one reason I said "Maybe lightly spray some carb cleaner down the fuel line hole to see if that helps clear anything out." and only do it with the bowl OFF the carb. You only want to clean out that screen, not spray it all over the place! If you go to the part of watching the slide. It will pulse up and down a bit at the speed of the engine. As you increase throttle, it should rise up in to the carb body, and will still be pulsing. If it doesn't pulse or move up, then it is stuck or something else is keeping it from moving. Turn off the bike, and try moving it manually. If it moves (or starts moving) freely. Start it up and look again. If it still doesn't move, then odds are the diaphram at the top of the slide is leaking. If you are going to go deep into the carb, you should just tear it down and clean it. There are instructions in the Tech section. It's not hard, but you need to be careful! Make sure you read back through the thread and try to find the cause of the problem by eliminating possibilities. The easy stuff first. Check results after you do something. Lets say you only get a trickle from the bowl drain. when you take off the bowl, try the gas again to see if you are still only getting a trickle pass the float valve, as it is possible that the bowl drain was only allowing a trickle, and that doesn't mean anything! Good luck! |
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