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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> White Spacer Mod /cgi-bin/YaBB.pl?num=1253385130 Message started by Routy on 09/19/09 at 11:32:10 |
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Title: White Spacer Mod Post by Routy on 09/19/09 at 11:32:10 Just completed the white spacer mod (was .110 now .055) to correct the lean 1/4-1/3 throttle condition. Nothing,.....I mean nothing could have worked better. It runs almost perfect now. I thought removing the brass plug mod would be next, but not anymore,....I ain't touchin the air screw. It idles perfect, and runs near that too. Advice ??,....that I should probably not be giving ?,......If you ride at around 500 ft elevation, and your bike is surging at low speed- 1/4 throttle, try a 1/2 white spacer mod. You mite just like it ! :o And thanks to all who helped make it a little easier ! |
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Title: Re: White Spacer Mod Post by 4carbcorvair on 09/19/09 at 13:46:08 Yup. :) I recently went from the stock 145 main to the 150, up on the pilot and 3 washers in place of the spacer with a Dyna muffler. Purrrrrs like a tiger. |
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Title: Re: White Spacer Mod Post by tran2112 on 09/20/09 at 07:13:05 I haven't been able to find on the forum what exactly this mod does. I see everyone that's done it with seemingly good results. Is this something you do instead of rejetting? If so, I'd love to save money but get max results where ever I can! |
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Title: Re: White Spacer Mod Post by Charon on 09/20/09 at 08:29:49 In the carburetor is a throttle slide. It is a large black plunger. Mounted to the slide is a "needle" which is actually a slightly tapered rod. The slide controls the amount of air entering the engine. The needle inserts into a "jet" which is actually a brass plug with a hole in the middle. The needle moves with the slide, and controls the amount of fuel passing through the jet. The fuel passes through the space between the needle and the hole in the jet. The "white spacer" is a white plastic washer, which positions the needle against a spring in the slide. Removing or thinning the spacer allows the needle to rise slightly in the slide, allowing slightly more fuel into the mixture, richening the mix in the midrange where the needle controls it. At wide open throttle the needle is pretty much all the way out of the jet, so the jet size controls fuel mixture. |
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Title: Re: White Spacer Mod Post by Routy on 09/20/09 at 12:50:10 Wow,..I wish someone would have explained it that good before I started on it ! I kinda went into it blindly, but not much surprises, except it gets a little challenging in a couple spots, like getting those 2 little screws threaded back where they belong. And I doubt I could have removed the 6 screws w/o an impact driver I think most times the spacer mod is done in combination w/ larger jets. But I like to keep stuff simple as possible, so thought I'd do the spacer first and hope that would do it. It turned out really good, and I don't really see any need for jet change right now. I don't even see a need to do the brass plug mod, as it runs and idles great just as it is. |
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Title: Re: White Spacer Mod Post by tran2112 on 09/20/09 at 14:55:53 @Charon, that's was exact what I was looking for! Thanks a heap. I'm definitely sure that the next person who searches White Spacer Mod will see this! But I didn't look in the Tech section. I'll do that next time. @Routy, I must admit that I am not very handy at mechanics. Is this mod something you recommend me trying to do? Can I really mess something up? It's definitely not worth taking to a mechanic for sure tho, huh? |
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Title: Re: White Spacer Mod Post by Routy on 09/20/09 at 17:26:29 696F7C732F2C2C2F1D0 wrote:
Who am I that I should tell anyone that they should not attemt this mod unless they are handy in mechanical stuff, especially small parts, but, I'm afraid that would be my advice. I myself am a retired GM tech, and have overhauled many 4 barrel Quadrajets in my days, and this mod was still challenging for me. I don't know if the Suzie shops do these mods or not. Perhaps the "longtimers" here can tell you more about it. |
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Title: Re: White Spacer Mod Post by Charon on 09/20/09 at 18:14:28 Strictly speaking, neither you nor your motorcycle dealer can do the mod. Doing it is a violation of Federal laws against increasing engine emissions. Nor can you do any other modification to the intake or exhaust system which will increase emissions, including noise emissions. As a practical matter, you will probably get away with it because there is almost no enforcement at the individual level. You have been warned. |
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Title: Re: White Spacer Mod Post by Pabst 2006 on 09/20/09 at 19:00:04 a.k.a. a translation of the jibberish stamped onto the chrome on the side of the OEM muffler. "If you modify anything, Big Brother will find you!!!" Nevermind if perhaps some of us want to be more socially acceptable, and not have our bikes unleash upon hapless civilians a shotgun blast upon ignition cutoff. GRR. :-) -Pabst |
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Title: Re: White Spacer Mod Post by voldigicam on 09/20/09 at 20:08:36 2B2D3E316D6E6E6D5F0 wrote:
While simple in principal, the tool techniques might prove challenging. Depending on the condition of the things. And some problem solving might be required. Ideally, it shouldn't be hard. But if the machine screws holding the top of the carb are difficult to remove, then you'll probably have to remove the carb from the bike, which is a bit interesting. Then be faced with the challenge of stuck screws. Getting the needle out is no trouble, getting it back in might be less easy. We used to do this type of thing all the time for cars and faced similar troubles. I don't know that motorcycle shops do it. One would think so, given how lean many bikes run. |
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Title: Re: White Spacer Mod Post by SavageDude on 09/20/09 at 20:31:23 4B445E45595F4C4E46485F2D0 wrote:
Do your research and see what tools you need to have to do the job. As any tweaking job, you need to allow extra time (double it up) in case things don't go right. All mods in this bike are doable but you have to read and read info in the Tech Section. To sum it up, do your homework :) |
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Title: Re: White Spacer Mod Post by JohnBoy on 09/21/09 at 05:26:36 " except it gets a little challenging in a couple spots, like getting those 2 little screws threaded back where they belong. " Here is a trick you might try. If you don't have a magnetic screw driver to told the screw heads in place simply stick a small magnet to the shank of your screw driver. The tip will hold a magnetic charge until you pull the magnet off. |
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Title: Re: White Spacer Mod Post by dasch on 09/21/09 at 05:43:09 zactly dat!! Or a drop of some GP glue, magnet is better, though. |
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Title: Re: White Spacer Mod Post by Routy on 09/21/09 at 06:21:01 And make sure you get that little round plate right side up so that the slots line up correctly w/ the 2 holes. And getting the outer edge of the rubber diaphram to stay in the groove till the cover is put on, was a little challenging also. I used some heavy sticky grease there too. |
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Title: Re: White Spacer Mod Post by dmike on 09/21/09 at 08:59:47 263F3C3439373933313D500 wrote:
The suzuki shop I took mine to took out the spacer after I complained to them about backfire. They completely took the spacer out, so now I have to go back in and fix it since they should have just modded the spacer. |
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Title: Re: White Spacer Mod Post by SavageDude on 09/21/09 at 12:10:43 3A3337353B5E0 wrote:
The suzuki shop I took mine to took out the spacer after I complained to them about backfire. They completely took the spacer out, so now I have to go back in and fix it since they should have just modded the spacer. [/quote] That's is why I don't trust work from Stealership. I think they purposely screws things up so that you have to bring it back for MORE services. There is nothing like the feeling of fixing your own thing with TLC and keep the money in your pocket at the same time :D |
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Title: Re: White Spacer Mod Post by bill67 on 09/21/09 at 12:48:25 2E2723212F4A0 wrote:
The suzuki shop I took mine to took out the spacer after I complained to them about backfire. They completely took the spacer out, so now I have to go back in and fix it since they should have just modded the spacer. [/quote] Was everything else stock on your bike. |
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Title: Re: White Spacer Mod Post by dmike on 09/21/09 at 12:55:03 73787D7D2726110 wrote:
The suzuki shop I took mine to took out the spacer after I complained to them about backfire. They completely took the spacer out, so now I have to go back in and fix it since they should have just modded the spacer. [/quote] Was everything else stock on your bike.[/quote] Yep, everything was stock at the time. It created a "bucking" at low throttle I think when they took the spacer out altogether. So after research I think it is the lack of a spacer that is causing it. |
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Title: Re: White Spacer Mod Post by dmike on 09/21/09 at 12:56:52 784A5D4A4C4E6F5E4F4E2B0 wrote:
The suzuki shop I took mine to took out the spacer after I complained to them about backfire. They completely took the spacer out, so now I have to go back in and fix it since they should have just modded the spacer. [/quote] That's is why I don't trust work from Stealership. I think they purposely screws things up so that you have to bring it back for MORE services. There is nothing like the feeling of fixing your own thing with TLC and keep the money in your pocket at the same time :D[/quote] I would love to have done it myself to start with, but without a shop or even a good place to work on the bike at my house, it makes it really difficult. Plus I am missing some tools, and have no idea where they went. Very upsetting. |
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