Question about 1984 Suzuki Gs 550 L
I put a header on my 1978 GS550E (4cyl. & carb / mikuni) & it does not rev. up. It runs ok in the mid range, but has no top end. The material that came wwith the header said one may have to change the jet after installing the header? Please advise. Thank You; smitty
Wot do you mean by ( header ) , do you mean a tuned exhaust system or a tuned cylinder head ?? if exhaust then yes increase the of the jets and replace the airfilter to KnN free flow filter or similar type ! find out the maker of exhaust and contact them for info to wot jets required ! could fit a larger fuel feed tap and pipes to help flow of fuel too !
Posted on Jan 06, 2014
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Posted on Jan 02, 2017
I have seen this before a few things to do too make sure. First take the air filter out and shine a light use your fingers to move the slides up and down I suspect the springs that go on the slide is not seated in center you can tell from the slide going halfway and hanging up. Next, the boots on the slides only go on 1 way there is a notch on the carbs for them. I would guess this would fix you up if not we can get deeper into it with air-fuel mix screw settings.good luck
Posted on Mar 25, 2009
sounds like the main jets are partly pluged, you must remve all brass jets and seats including needle jet and its slide soak in carb cleaner and blow out with compressed air only.. hold up to bright light to verify if all are clean. jim
Posted on Mar 29, 2009
SOURCE: 83 suziki GS450 idle issues
the problem with the rubber was close but on the gs450 there is a metal insert that even if the rubber was rotted away the metal seals aginst the head so it cant leak. the problem is on the gs 450 suzuki used a cheap throttle cable that kinks behind the gas tank and kinks at the bend to the crabs under the set and the throttle system is a pull only not a dual cable pull push to always close the throttle. if you start the bike a wiggle the bend in the cable that comes out from the twist grip you will see it changes the idle. with either your finger or a screw driver and push the plate down on the carbs that the cable connects too. if the idle drops this conforms your problem. order a new cable from dennis kirk they have the revised one that has metal adjustment screw and metal clip in. better jacket casing as well.
Posted on Sep 29, 2009
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