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I own a 81 450L, and was hoping someone could give me a little knowledge on carbs. what model they are, if there is jet kits still available and if i put a mac exhaust on and pods, what jets to use. thanks for any imput
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Being an 81, I would think that you're likely using BS32SS carbs. I may be wrong, as ive never really investigated the set up of a 450, but generally after 80, i do believe just about every bike on the road was using some form of constant velocity carburetors. And the BS32SS were used on everything GS that I am aware of from 750 down. Yes there are jet kits still available, thru DynoJet. If you're simply switching to a aftermarket pipe, and NOT changing your intake (still using the stock airbox) then you'll likely need only the Stage One jet kit. However, I would investigate with DynoJet and MAC on their suggestions. Some pipes suggest that rejet is not necessary. -
I think they are 36mm.1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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WOW! That big? Well i guess that makes sense, two cylinders with a larger bore than that of a four would require more fuel?Comment
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the 81 450L uses mikuni BS34SS carbsComment
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I just had a feeling
I just had a feeling that every one here was grade a people, why else would you all be gs'ers, thank you all. planning on mac and podsComment
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Plan on doing some serious rejetting, or check Dynojet for a kit.Originally posted by 450FREAK View PostEd
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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second that, BS34SS, prob. series 44100 or similar, check main jets to confirm that they are mikuni, not keihin (different outside diameter)Originally posted by focus frenzy View Post
my -81 (ex) use Keihin jets in the mikuni carb - can be confusing.
regards
-bloComment
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Yeah that sounds like it could be very confusing, thanks for the heads up, i'll make sure. Waiting on responce from Dynojet just can't wait, wanted to see if any one here might know. ThanksComment
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1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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