Sunday, January 1, 2012

1980 Suzuki gs850g with a Vance & hines megaphone exhaust what size jets for the carbs?

need to rejet for the exhaust. also have stock air box. Also woud like to know about how many turns out to go with the mixture screws.|||I used to race sleds





The jets are to be tried at 5 sizes higher than work from there


No bike is exactly the same


Get the plugs at a light brown





After you install the jets,run the bike wide opened in 1st gear for 100 feet,


Shut it down ASAP and check your plugs.


If they are burning toward white go 2 sizes higher to richen


If they are burning toward black just go 1 size lower





Repeat the process


Adjust carbs factory setting|||About 10% if your below 3,000 ft altitude. Its a fourstroke so you dont need jets as big as in a racing two stroke. join a forum called


GS Resource, you'll have to search as I dont have URL

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