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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Rejetting carb? /cgi-bin/YaBB.pl?num=1270514164 Message started by stevemillerster on 04/05/10 at 17:36:04 |
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Title: Rejetting carb? Post by stevemillerster on 04/05/10 at 17:36:04 I have read a lot here about folks rejetting their carbs. I am not really sure what this is intended to do... stop the back fire, add HP... any words? |
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Title: Re: Rejetting carb? Post by Serowbot on 04/05/10 at 17:39:56 If you live at near sea level elevation,... most stock bikes, including the Savage, are jetted lean for EPA emissions... Jetting a bit richer, will let it run a little cooler and perform a bit better... possibly less pipe blueing, but slightly reduced MPG's... If you are at 2500ft to 4000ft... the jetting is not too bad stock... |
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Title: Re: Rejetting carb? Post by bill67 on 04/05/10 at 17:42:09 4D4A5B485B535752525B4C4D4A5B4C3E0 wrote:
It helps on the backfiring and does give you more power that you can feel. |
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Title: Re: Rejetting carb? Post by Rocco on 04/05/10 at 20:14:19 i live in south fla(neg sea level lol) and i put a k&n and a debaffled sportster muffler, so i needed more fuel |
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Title: Re: Rejetting carb? Post by justin_o_guy2 on 04/06/10 at 03:53:31 A minor `twist on the mixture needle is often needed |
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Title: Re: Rejetting carb? Post by bushkanaka on 06/10/10 at 05:50:08 How hard is it to rejet carb? I have HD muffler, but stock air filter. Have some bluing on front of muffler, but not bad. Thought it came from where we didn't quite have the connection sealed well enough. What causes the bluing? |
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Title: Re: Rejetting carb? Post by Routy on 06/10/10 at 08:25:43 We all have our own ideas on blueing, but I'm convinced that just because the pipe get blue over time doesn't mean that it has to be running too lean. W/ stock jetting except for spacer mod, my pipe was quite blue when I bought it at 3500 miles, run mostly at sea level, and now here at 800' elev, it shows no signs of running too lean. However, if I were to run this bike at sea level on hot days and hi sp heavy throttle, I would maybe have to upjet a touch. 594E4853505A555A505A3B0 wrote:
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Title: Re: Rejetting carb? Post by onelunger on 06/10/10 at 09:23:12 53544556454D494C4C455253544552200 wrote:
Rejetting the carb is the means to getting the propper amount of fuel mixed w/ the incoming air. By getting the ratio correct (stock is far cry from "correct" for most) you will get more power and a better/cooler running engine. The popping/ backfiring is caused (at least in part) by a screwed up air/fuel mix by Suzuki. In order to meet EPA requirements (emissions) they were forced to either sink money into the bike to add a catalytic converter or other secondary emissions system, which they didn't want to do on a low cost bike like the Savage/S40, or run a less than optimal air fuel mix. They chose the overly lean (too much air, not enough fuel) carb settings because it cost them very little $$$ to do. With the correct air/fuel mix you will be amazed at how much more torque and HP "Thumper" will make. It really is pretty dramatic. |
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Title: Re: Rejetting carb? Post by bushkanaka on 06/10/10 at 10:33:11 How do you rejet the carb and correct the fuel/air balance, or is it better to take it to a mechanic? |
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Title: Re: Rejetting carb? Post by bill67 on 06/10/10 at 10:37:03 Take off the fuel bowl at bottom of carb,You will see two screws up in the carb that is the jets,If its stock you can go one richer on each one. |
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Title: Re: Rejetting carb? Post by bushkanaka on 06/10/10 at 10:51:10 sorry, but what is one richer? turn it right or left or what? How do I know when it is good? |
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Title: Re: Rejetting carb? Post by bill67 on 06/10/10 at 11:06:17 You have to take them out and replace them next higher number is richer. |
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Title: Re: Rejetting carb? Post by Serowbot on 06/10/10 at 11:28:20 Hardest thing about rejetting is getting the four screws out, that hold the floatbowl (bottom of carb)... If you can do that,.. the rest is easy... If you do, do that,... replace those screws with allen heads... then the future is bliss... If you are stock jetted,... start with a #150 main (ask for large head #150 Mikuni jet)... Leave the pilot stock, and try adjusting the idle mix screw,... under brass plug on rightside of carb... see tech section for instruction... |
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Title: Re: Rejetting carb? Post by earlytimz on 06/10/10 at 12:28:42 Where are y'all located? Might be someone close that can walk you through it... |
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Title: Re: Rejetting carb? Post by bushkanaka on 06/10/10 at 13:38:45 south of Charlotte, north of Lancaster, SC |
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