650 project

[darkbane]

Just getting ready to start re-jetting my GS650g with the Dynojet Stage III kit. It does NOT come with instructions (I contact Dynojet and they stated that it's not supposed to). Fortunately, I know somebody who is VERY good with carbs and jetting, so I'll go to him if I have troubles. I'll post info and progress that could help as this comes along.

The riding season is approaching quick here in Chicago, so hopefully this will happen sooner than later.

 

[Rein]

Pretty sure Robert uses Nitrle rubber (Buna-N) o-rings.

Nitrile in the carbs, and Viton for the intake boots.

http://www.cycleorings.com/intake.html

It says viton in that link, but on the homepage it's nitrile for the carb o ring kits.

 

[Flaggo60]

Just getting ready to start re-jetting my GS650g with the Dynojet Stage III kit. It does NOT come with instructions (I contact Dynojet and they stated that it's not supposed to). Fortunately, I know somebody who is VERY good with carbs and jetting, so I'll go to him if I have troubles. I'll post info and progress that could help as this comes along.

The riding season is approaching quick here in Chicago, so hopefully this will happen sooner than later.

Maybe someone here will correct me but my understanding is that the carbs for the 650 are the same as those for the 850, Mikuni BS32's. That said, there is a .PDF instruction pamphlet on the Dyno Jet website for the 850 setup which is part number 3306. I am about to do the same mod to my 650 and have downloaded this as part of the instructions. I have yet to start this however, and would welcome any input.

 

[duaneage]

850s used 34 mm carbs/ I have handled them and they are bigger. the 550 through 750 bikes from 1981 to 1984 were 32 mm bikes rejetted for the application. The dual carb single body models are a different beat used on the 85 550.

Even the 16 valve 750 used 32 mm carbs

 

[mpls-ugly]

carb jet

carb jet

I finised jeting my carb and its relitivly eassy. I haven't had a chance to run them yet to check for adjustments because Im still waiting for my pilot jet plugs to get shipped out. I made the mistake in letting them rot out in parts cleaner. Stupid move on my part. Replace the main jets jam that air corrector in the hole dab the glue on an edge or it. Pull out the old needles (use a hemostat) and drill the hole thats off center on the float with the smaller drill bit (its angled don't fight it) install the new needles per settings you got with the kit and adjust the air screws the same. thats it. The Clip setting is from the flat end. I think mine was 3rd clip position so 3rd from the bottom but would be the top when assembled. Hope that helps.