SuzukiSavage.com - Idle problem

KenGLong

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2002 Savage

Posts: 297
Albuquerque, NM
Gender: male

Idle problem
01/16/07 at 19:03:20

The idle on my '02 will sometimes drop really low at stop lights. It starts to lope and I have to goose the throttle to keep it running. It doesn't happen all the time though. Most times, it idles just fine. Seems to happen more when she's cold. High speed runs are fine. I can run at a steady 70 mph no problem. This problem has been around for several months. I was just in my carb and did the rejetting and white spacer mod as well as a thorough cleaning on the bench. This idle problem was there before and is still there after the carb work.

It was so bad after my test run this evening that it stalled in the driveway after I came back and wouldn't start up again. I pushed the bike into the garage where I was finally able to start it after a couple minutes of trying. It acted like it was really really cold. The idle was very low then slowly came up to normal.

The bike has about 21K miles on her. I bought it at 12K in Sep of 05. Any thoughts?

BTW, I went from a 145 main to a 152.5 and a 52.5 pilot to a 55, have the pilot screw set 1 turn out and shaved the white spacer to about .065" (I'm at 5000 ft elevation). The bike has much more power now and there is no more backfiring. Just a bit of snap and crackle on deacceleration.

Ken in Albuquerque

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Reelthing Serious Thumper Alliance Member Offline Fish or ride that is the question Posts: 5397 Houston,Tx Gender:	Re: Idle problem Reply #1 - 01/16/07 at 20:15:51 sounds like a rich setup to me - but none the less did you have slide spotless clean when it went back in - no oil, no finger prints, no nothing?
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justin_o_guy

Ex Member

Re: Idle problem
Reply #2 - 01/16/07 at 21:52:33

OOOPS, I wasn't that picky when I went back together & mine sometimes idles wierd. It will be idling high & I will adj, idle screw, not idle mix, & get it about right. later, sitting at a light, idle will start dropping & just keep dropping till I have to goose it to keep it running. Slide sticking then dropping after it's warmed up? Man, for a single cylinder, that carb is a pain to pull.
Anyway, I handled it & I am sure I let oily stuff get on it. I had no idea it was so picky. Guess I better pull it?

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Reelthing Serious Thumper Alliance Member Offline Fish or ride that is the question Posts: 5397 Houston,Tx Gender:	Re: Idle problem Reply #3 - 01/16/07 at 23:11:07 don't need to remove the carb - at least I find it easier to pull the seat and tank - twist the carb a little and go at it
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justin_o_guy Ex Member	Re: Idle problem Reply #4 - 01/16/07 at 23:40:05 I just might do that. Thanks,
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sparkett Full Member Offline never ride faster than your guardian angel flys! Posts: 168 central florida Gender:	Re: Idle problem Reply #5 - 01/17/07 at 04:33:03 I just kept the lid off the battery. it has the cone filter mod, so i just push the cone in the air box hole. Take off gas line and tuck between seat and frame, hang throttle on pet thingy and twist out. Not any more tho she is running great with the new carb!
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KenGLong

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2002 Savage

Posts: 297
Albuquerque, NM
Gender: male

Re: Idle problem
Reply #6 - 01/17/07 at 06:27:15

Reelthing wrote on 12/31/69 at 16:00:01:

sounds like a rich setup to me - but none the less did you have slide spotless clean when it went back in - no oil, no finger prints, no nothing?

I did clean it up and smoothed it with fine steel wool but I wasn't working in a sterile operating room and I wasn't that careful before it went back in. I guess I can pull it back out and clean it up again.

I also found a reference on this board to a bad vacuum line between the carb and the fuel petcock. Since this problem first showed up after I started wrenching on the bike, it's very possible that I messed up that vacuum hose by laying the tank on the bench or floor and pinching that hose.

I'll do the hose first then pull the slide and clean it up real good if the new vacuum hose doesn't fix it. I had no idea that slide was so sensitive.

Ken

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KenGLong Senior Member Alliance Member Offline 2002 Savage Posts: 297 Albuquerque, NM Gender:	Re: Idle problem Reply #7 - 01/17/07 at 07:27:23 KenGLong wrote on 12/31/69 at 16:00:01: fuel petcock Just want to point out that the bbs software changed that word to petthingy all by itself. I didn't type it! Ken
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Kropatchek Serious Thumper Offline Why more than 1 cylinder? Posts: 1457 Alphen a/d Rijn Netherlands Gender:	Re: Idle problem Reply #8 - 01/17/07 at 07:31:49 KenGLong wrote on 12/31/69 at 16:00:01: Just want to point out that the bbs software changed that word to petthingy all by itself. I didn't type it! Ken If you must, type "petc0ck" and we all know what you mean Greetz Kropatchek
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Savage_Rob Serious Thumper Alliance Member Offline Mechanically Inclined Amateur Posts: 6972 Texas (Dallas area) Gender:	Re: Idle problem Reply #9 - 01/17/07 at 07:37:54 Yes. Some other favorites include b1tch and sp00n.
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tbalam

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I like my kids, but
I love my bike ;)

Posts: 172
Fac o' the Sn
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Re: Idle problem
Reply #10 - 01/17/07 at 15:44:28

KenGLong wrote on 12/31/69 at 16:00:01:

I did clean it up and smoothed it with fine steel wool but I wasn't working in a sterile operating room and I wasn't that careful before it went back in. I guess I can pull it back out and clean it up again.

I also found a reference on this board to a bad vacuum line between the carb and the fuel petcock. Since this problem first showed up after I started wrenching on the bike, it's very possible that I messed up that vacuum hose by laying the tank on the bench or floor and pinching that hose.

I'll do the hose first then pull the slide and clean it up real good if the new vacuum hose doesn't fix it. I had no idea that slide was so sensitive.

Ken

I had a similar problem, that happens intermittenly when its cold. I found that if I turn the petcock to prime that it was taken care of and i switch it to on when i shut her off, to prevent overflow in the bowl.

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1996 Mirage paint, seat lift, 2 #4 washers, 155 main, 52.5 pilot. Removed pillon, belt guard, rear blinker mod, moved battery box. K&N cone, Chain conversion 17/43 (in process). Cam tensioner mod.

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KenGLong

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2002 Savage

Posts: 297
Albuquerque, NM
Gender: male

Re: Idle problem
Reply #11 - 01/17/07 at 19:13:04

I replaced the vacuum hose today and took it out for a run. The idle still wants to drop but it didn't actually stall. I let it idle in the garage after a good 2 mile run and the idle dropped and dropped and it almost stalled. Then it started coming back up to normal by itself. After 2 or 3 minutes it was back up to normal. The engine was fully warmed up the whole time and my garage is heated.

Concerning the dirty slide suggestion, I'll pull it out and wipe my fingerprints off of it but I don't think that's the real cause because it was doing it before I got in the carb and the slide was much dirtier when I first pulled it out than when I reinstalled it with my fingerprints on it.

Concerning the fuel petcock thingy thingy, running in the prime position would be a good test but does this bypass the reserve? If I ran out of gas on PRI, would I still be able to switch to RES and keep going?

Thanks,
Ken

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Reelthing Serious Thumper Alliance Member Offline Fish or ride that is the question Posts: 5397 Houston,Tx Gender:	Re: Idle problem Reply #12 - 01/17/07 at 19:20:02 prime does bypass the reserve
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Reelthing Serious Thumper Alliance Member Offline Fish or ride that is the question Posts: 5397 Houston,Tx Gender:	Re: Idle problem Reply #13 - 01/17/07 at 19:21:06 not sure that was clear - you run out on pri and the tank is bone dry
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justin_o_guy

Ex Member

Re: Idle problem
Reply #14 - 01/17/07 at 21:23:03

Testing, testing.. I put my gun's hammer on halfcock. I dug ice cream out with a spoon.

Also, that's what mine's doing now. Idle will drop to the point I think it's gonna die, but, if it doesn't, it will crawl back up toward normal.I, too, failed to reinstall the slide without fingerprints. Maybe even had oil on it. What happens if I type pregnant dog?

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