SuzukiSavage.com - Backfiring please help

Elizabeth

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Re: Backfiring please help
Reply #15 - 06/28/04 at 17:30:33

The last owner bought from a dealer. I guess it had been a trade in. The last owner didn't even put 200 miles on it. Was his first bike he said and did not know much about it.
It only puked gas when it was on. It had to have been the float because hubby sealed the crack and it was fine. The new one should be in tomorrow.
I think so far I have put 200 miles on it so far and have only had it for 2 weeks. Took it out yesterday for about 50 miles and it ran much better than before. So whatever I have been doing seems to be working. I have changed the air filter, battery, main jet and adjustment screw has been turned out 1 1-2 turns. I also put in a new header pipe gasket.

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Savage_Greg Serious Thumper Alliance Member Offline Don't go around your ass to reach your elbow... Posts: 7844 SW Washington State Gender:	Re: Backfiring please help Reply #16 - 06/29/04 at 13:55:46 Sounds like you've got a handle on the situation. Did you ever install the Jardine? (Time to dry out, just rode home in a thunderstorm )
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Gitarzan

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Re: Backfiring please help
Reply #17 - 07/02/04 at 20:50:10

Quote:

Interesting ) Must be some kind of "parental controls" going on....in my last post, I tried to use the correct name for the fuel "valve" on the tank, and it was changed to "petthingy"....cute.

I saw that too. Grin

When I saw the references to petcock I thought that either it was an inside joke or that some folks here were so uptight their fannys squeaked.

I tested a few other words, they do it too.

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2001 Cherry Red and Ivory Yamaha VStar 1100

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maria Ex Member	Re: Backfiring please help Reply #18 - 07/09/04 at 19:10:37 now talking about backfiring - she has gone back to huge backfires, massive KERPANGS!! i think it's the timing and she sounds seriously tappetty
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Savage_Greg Serious Thumper Alliance Member Offline Don't go around your ass to reach your elbow... Posts: 7844 SW Washington State Gender:	Re: Backfiring please help Reply #19 - 07/10/04 at 06:20:06 maria wrote on 12/31/69 at 16:00:07: now talking about backfiring - she has gone back to huge backfires, massive KERPANGS!! i think it's the timing and she sounds seriously tappetty Now, back to the beginning...what have you changed?
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Savage_Greg Serious Thumper Alliance Member Offline Don't go around your ass to reach your elbow... Posts: 7844 SW Washington State Gender:	Re: Backfiring please help Reply #20 - 07/10/04 at 06:22:08 maria wrote on 12/31/69 at 16:00:07: now talking about backfiring - she has gone back to huge backfires, massive KERPANGS!! i think it's the timing and she sounds seriously tappetty BTW - the timing is "fixed", unless you have opened the engine and done something in there.
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sunny

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Re: Backfiring please help
Reply #21 - 07/16/04 at 14:33:15

Savage_Greg wrote on 12/31/69 at 16:00:06:

Oh yeah, if you get the Jardine (your husband is right to be wary), you might want to get a #155 main jet instead.

Whatever you do...do the rejetting at the same time that you change the exhaust....you run a real good chance of discoloring your new pipe if you don't.

my incredibly neglected and abused 97 came to me with a jardine pipe but the standard jet. other than the visual problem of discoloration, can using the standard jet cause other problems?

i'm not sure if the white spacer is even still in the carb as it had been taken apart and put back together by someone who did not know what they were doing, before i got it. needless to say it didn't run at first. and the person who fixed it for me didn't recall seeing a spacer when i asked him about it.

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flatblack rat - 97

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Savage_Greg Serious Thumper Alliance Member Offline Don't go around your ass to reach your elbow... Posts: 7844 SW Washington State Gender:	Re: Backfiring please help Reply #22 - 07/17/04 at 04:33:14 First, it might be simpler if you read my last post about the Raask pipe..... Now, let's start over.... Is the Jardine muffler or header pipe discolored now? Do you still have backfires?
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sunny

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Re: Backfiring please help
Reply #23 - 07/19/04 at 12:22:31

Savage_Greg wrote on 12/31/69 at 16:00:07:

First, it might be simpler if you read my last post about the Raask pipe.....

done.
Quote:

Now, let's start over....
Is the Jardine muffler or header pipe discolored now?
Do you still have backfires?

1. did the airmix screw adjustment on the carburetor according to the heise site last weekend. the massive backfires i had are now little puffs on shutting down. there are still backfires of small to medium size on deceleration.

2. yes there is a spot of discoloration. we had thought it was due to a small fire.

3. occassionally the engine(but not electrical) will die if i pull in the clutch while in fourth gear as i decelerate. not regularly though.

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flatblack rat - 97

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Savage_Greg

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Re: Backfiring please help
Reply #24 - 07/19/04 at 13:34:49

sunny wrote on 12/31/69 at 16:00:07:

done.

1. did the airmix screw adjustment on the carburetor according to the heise site last weekend. the massive backfires i had are now little puffs on shutting down. there are still backfires of small to medium size on deceleration.

2. yes there is a spot of discoloration. we had thought it was due to a small fire.

3. occassionally the engine(but not electrical) will die if i pull in the clutch while in fourth gear as i decelerate. not regularly though.

1. Good. That one is done.
2. Yes, a little fire...actually hot exhaust. But it is hotter than the pipe was engineered. Is the discoloration on the pipe up by the engine or at the beginning of the Jardine?
3. Still a stock main jet (#145)?

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sunny

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Re: Backfiring please help
Reply #25 - 07/19/04 at 13:56:27

Savage_Greg wrote on 12/31/69 at 16:00:07:

2. Yes, a little fire...actually hot exhaust. But it is hotter than the pipe was engineered. Is the discoloration on the pipe up by the engine or at the beginning of the Jardine?

at the beginning of the jardine IF the jardine begins directly below the stock airbox cover.

Quote:

3. Still a stock main jet (#145)?

yes.

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flatblack rat - 97

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atiger Ex Member	Re: Backfiring please help Reply #26 - 07/19/04 at 14:08:06 I bought my 2002 Suzuki from a guy who had the Jardine pipe put on but didn't change the jetting. The pipe is discolored (bike has 2200 miles on it). I have had bike for two weeks and so far it only seems to backfire when I shut down the engine, not while riding. Should I get the jet changed?
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Savage_Rob

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Re: Backfiring please help
Reply #27 - 07/19/04 at 14:20:18

Mine is a 98 and, so far as everything else I've seen, is totally stock. I have not actually looked inside the carb yet though. Mine only backfires on shutdown, so I haven't been too worried. I may opt for rejetting later just for additional power but I always ride single (wife is terrified of bikes) so that's not really an issue either. I am more inclined to keep reading and learning before I do anything other than possibly adjust the idle.

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Savage_Greg

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Re: Backfiring please help
Reply #28 - 07/20/04 at 08:50:02

sunny wrote on 12/31/69 at 16:00:07:

at the beginning of the jardine IF the jardine begins directly below the stock airbox cover.

yes.

Thought so....

Get a #152.5 main jet, and pop that puppy in there. It is harder to get the bowl off the carb, than to change the jet, but you will immediately see the difference.

Know where the jet is? Need pictures?

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Savage_Greg

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Re: Backfiring please help
Reply #29 - 07/20/04 at 08:51:43

atiger wrote on 12/31/69 at 16:00:07:

I bought my 2002 Suzuki from a guy who had the Jardine pipe put on but didn't change the jetting. The pipe is discolored (bike has 2200 miles on it). I have had bike for two weeks and so far it only seems to backfire when I shut down the engine, not while riding. Should I get the jet changed?

Does it "pop, pop, pop" when changing gears or decelerating?

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