GS550L - are 1983 & 1985 carbs the same??

[hikermikem]

Can I use the same carbs for either an "83 or "85 engine??

I downloaded a manual that appears to be for 1983 (and up?) for my 1985 550L. I've completely disassemblied the carb to dip, & the model (ID) number of the carb is not the one called out in manual. It's also jetted different.

Manual sez... #43510 Mikuni carb (2-barrel)
Actual iz... #43610 Mikuni carb (2-barrel)

I would like to know what the REAL carb & specs are for my 1985 (mfg. 10/84).

[Calvin Blackmore]

is this a question of jetting?

if it is check out bikebandit for hte model year

the jet size is noted in the fiche

alpha sports will let you have the actual suzuki parts number in order to cross reference so that may be a better route

[skreemer]

The 83 and 85 models carbs are identical....

[Calvin Blackmore]

Jetting options are different in 85 and possibly other years

a 90 main jet

The fiche for California specific carb config so the bodies while the same may look oddly different with crazy piping and have crazy leaner jets for California

Mufflers all appear to be the same for all years so i guess the US models all had a California approved silencer

My Canada spec model has 100 and 105 main jets and a pipe that is not stamped with US EPA approval

[hikermikem]

Thanks guys - the 83 & 85 carbs are NOT the same. Also, the "L" model carbs are different than the "E" and "ES" ones of the same year; again different jets.

I have the carb specs for an "85 GS550L, and will post them shortly on the carb spec sticky.

BTW - I used a spray penetrating oil called "PB Blaster" on the cylinder side intake boot screws to get at the air tube O-rings. Worked suprisingly well, all broke loose quickly. My o-rings were flat & brittle & I'm sure were leaking air. Just another issue fixed, on the road to several more!