SuzukiSavage.com - Suddenly rich

verslagen1

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Gender: male

Suddenly rich
09/16/14 at 10:13:24

No, I didn't just get a job as a millionaire or marry one...
but I'm still single if you are Wink

More or less stock savage except...
sporty muf, desnorkled, no airbox door, raptorcock, stage 1 cam.

After running fine for several months, it's suddenly running rich.
GPM has gone from 2.2 gal's per 100miles to 1.4 per 50 :'(

So I cleaned the carb, found a huge hair ball on top of the float valve screen, but was clean in general. Readjusted the float height, was .970 now is 1.060".

Had the head cover off last xmas, did not see any cam/rocker wear.

The last uphill speed run was 92 mph vs. 84/88 normal.

The idle jet is stock for an '88, 47.5
Main jet is 152.5
stock white spacer.

Smells super rich on start up, and idles high.
bucks at a constant 1/4 throttle.
runs great at 1/2 to full throttle.

I think my next step is to reduce the main.
But that doesn't do anything for the low end.

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Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 17783 Camp Springs, Kentucky Gender:	Re: Suddenly rich Reply #1 - 09/16/14 at 10:35:50 Can you think of any reason that the slide may not be dropping all the way down at partial throttle? If the slide was up just a bit it would allow more fuel to flow out the needle jet - while the butterfly was still controlling the engine speed.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28751 L.A. California Gender:	Re: Suddenly rich Reply #2 - 09/16/14 at 11:48:31 I don't think so, but it is acting similar to when it was sticking up. Even though the butterfly is closed at idle, when it sticks up you get high rpms.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28362 Tucson Az Gender:	Re: Suddenly rich Reply #3 - 09/16/14 at 12:42:54 Could the TEV be stuck?...
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Ed L. Serious Thumper Alliance Member Offline "We All go a Little Crazy Sometimes" Norman Bates Posts: 2808 Sunny Florida Gender:	Re: Suddenly rich Reply #4 - 09/16/14 at 12:51:57 Air filter plugged up?
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28751 L.A. California Gender:	Re: Suddenly rich Reply #5 - 09/16/14 at 15:55:20 Serowbot wrote on 09/16/14 at 12:42:54: Could the TEV be stuck?... carb cleaned with the yamalube dip... good stuff.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28751 L.A. California Gender:	Re: Suddenly rich Reply #6 - 09/16/14 at 15:56:20 Ed L. wrote on 09/16/14 at 12:51:57: Air filter plugged up? K&N cleaned and lubed after problem started.
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raydawg Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 11551 pacific northwest Gender:	Re: Suddenly rich Reply #7 - 09/16/14 at 16:19:35 Have you put on an extra 200 pounds or so
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Suddenly rich Reply #8 - 09/16/14 at 17:40:53 I am not a carb guru, but,IMO,rejetting is only appropriate after air flow rate or home elevation changes.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28751 L.A. California Gender:	Re: Suddenly rich Reply #9 - 09/16/14 at 20:05:06 justin_o_guy2 wrote on 09/16/14 at 17:40:53: I am not a carb guru, but,IMO,rejetting is only appropriate after air flow rate or home elevation changes. so... look for a potato in my tailpipe?
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28751 L.A. California Gender:	Re: Suddenly rich Reply #10 - 09/16/14 at 20:07:23 raydawg wrote on 09/16/14 at 16:19:35: Have you put on an extra 200 pounds or so While I'd like a significant other... no, the bike hasn't gained any weight recently.
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justin_o_guy2

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What happened?

Posts: 55279
East Texas, 1/2 dallas/la.

Re: Suddenly rich
Reply #11 - 09/17/14 at 07:37:56

verslagen1 wrote on 09/16/14 at 20:05:06:

justin_o_guy2 wrote on 09/16/14 at 17:40:53:

I am not a carb guru, but,IMO,rejetting is only appropriate after air flow rate or home elevation changes.

so... look for a potato in my tailpipe?

Gerbil,maybe?

Actually,making sure nothing has changed,nothing restricting the air in or out,,,couldn't be a bad idea. How old is the muffler?
But to believe that the carb suddenly needs different jets after it's been in service and doing a good job? I can't wrap my head around that..
I don't know what it IS,but I can't see it suddenly needing re-tuned like would be needed if you changed the muffler to a lot smaller one.

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The people never give up their liberties but under some delusion.- Edmund Burke.

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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28362 Tucson Az Gender:	Re: Suddenly rich Reply #12 - 09/17/14 at 07:48:39 I'm with JOG... changing jetting while this problem is happening may correct for the problem rather then fix it...
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justin_o_guy2

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What happened?

Posts: 55279
East Texas, 1/2 dallas/la.

Re: Suddenly rich
Reply #13 - 09/17/14 at 07:59:33

All that said,IF you just can't figure out what is causing the rich condition,and knowing your abilities to get in and out of the carb,there's no reason to waste gas while you try to get it back to the way it was. It's only gonna take you a few minutes to swap the jets out,but I would not be calling it fixed. Sumpin jus ain't right here...

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The people never give up their liberties but under some delusion.- Edmund Burke.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28751 L.A. California Gender:	Re: Suddenly rich Reply #14 - 09/17/14 at 08:50:49 I dropped the main down to 150 last night. I don't have a smaller pilot jet. Top end is fine, bottom is still rich, constant 1/4 throttle is still bucky.
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