|
SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Suddenly rich /cgi-bin/YaBB.pl?num=1410887604 Message started by verslagen1 on 09/16/14 at 10:13:24 |
|
Title: Suddenly rich Post by verslagen1 on 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 ;) 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. |
|
Title: Re: Suddenly rich Post by Dave on 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. |
|
Title: Re: Suddenly rich Post by verslagen1 on 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. |
|
Title: Re: Suddenly rich Post by Serowbot on 09/16/14 at 12:42:54 Could the TEV be stuck?... |
|
Title: Re: Suddenly rich Post by Ed L. on 09/16/14 at 12:51:57 Air filter plugged up? |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/16/14 at 15:55:20 392F38253D28253E4A0 wrote:
carb cleaned with the yamalube dip... good stuff. |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/16/14 at 15:56:20 5F7E4556341A0 wrote:
K&N cleaned and lubed after problem started. |
|
Title: Re: Suddenly rich Post by raydawg on 09/16/14 at 16:19:35 Have you put on an extra 200 pounds or so :-* |
|
Title: Re: Suddenly rich Post by justin_o_guy2 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. |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/16/14 at 20:05:06 3A252324393E0F3F0F37252962500 wrote:
so... look for a potato in my tailpipe? |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/16/14 at 20:07:23 6A79617C796F7F180 wrote:
While I'd like a significant other... no, the bike hasn't gained any weight recently. |
|
Title: Re: Suddenly rich Post by justin_o_guy2 on 09/17/14 at 07:37:56 53405756494442404B14250 wrote:
so... look for a potato in my tailpipe?[/quote] 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. |
|
Title: Re: Suddenly rich Post by Serowbot on 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... |
|
Title: Re: Suddenly rich Post by justin_o_guy2 on 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... |
|
Title: Re: Suddenly rich Post by verslagen1 on 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. |
|
Title: Re: Suddenly rich Post by Dave on 09/17/14 at 09:13:02 I would try the clear fuel line trick to check the float level, and confirm that it is not too high when the engine is running. This photo shows the level of my fuel when I had the float within the factory specs. (Weird looking thing behind the carb is the reflection of the carb in the chrome battery box). And then I would pull the enrichment plunger out to make sure that it is seating properly and not got something stuck inside it. |
|
Title: Re: Suddenly rich Post by HondaLavis on 09/17/14 at 20:51:51 How many tanks of gas have you gone through since the problems started occurring? Have they all been from the same station? Maybe you found some REALLY watered down gas. I've had a couple of tanks like that, but never quite as severe as your case. I'd consider draining the tank and refilling from a different station. Just my $0.02. |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/21/14 at 16:13:23 I took the sporty muf off and it rattled. looked down the business end and all's well, even the baffle was there. but down the throat and the perforated tube is blown out. so I'd guess the missing piece is blocking the outlet portion of the baffle. |
|
Title: Re: Suddenly rich Post by justin_o_guy2 on 09/21/14 at 17:12:20 5A495E5F404D4B49421D2C0 wrote:
so... look for a potato in my tailpipe?[/quote] Well, no,,not a potato,not a gerbil, Glad you found it. |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/22/14 at 11:36:21 Put on a drilled out stock muf and it ran fine this morning. |
|
Title: Re: Suddenly rich Post by Dave on 09/22/14 at 12:49:11 716275746B6660626936070 wrote:
So.....what have you been doing to blow a Sporty muffler apart? :-/ |
|
Title: Re: Suddenly rich Post by verslagen1 on 09/22/14 at 13:48:13 4B707D6A7B776C6A7179746B180 wrote:
Well... I can tell you the top end is really nice [smiley=evil.gif] |
|
SuzukiSavage.com » Powered by YaBB 2.2! YaBB © 2000-2007. All Rights Reserved. |