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What is the proper tuning for BS34?

  • Thread starter Thread starter M.Hayes.GS450TX
  • Start date Start date
M

M.Hayes.GS450TX

Guest
Hey guys,

I have been cleaning and procrastinating on my carb cleaning. I keep getting hung up on the screw/jet tuning. I heard that on mine, everything is meant to be snug- factory setting.

However I don't know how tight to make the pilot screw (I believe that's the correct name I read in a tutorial).



I'm also just assuming these exact carbs (Mikuni 44460 C281) are OEM.

This has been a battle of wits indeed lol. I ordred the wrong float bowl gaskets from bike bandit too, so I'm in shambles :(




Thanks everyone!

P.S jsut an update, I just got a porting job at a Ducati (European bikes and EBRs) dealer recently and I'm waiting for my moment to ask for help without seeming like an entitled *******. haha
 
The mixture switch, what's outside and on top, is not to be made snug. It must be started turned out at 21/2 to 3 full turns from lightly tight to ensure the proper amount of air/fuel is provided. Have you read the carb rebuilding tutorial on Basscliff's site yet?
 
The mixture switch, what's outside and on top, is not to be made snug. It must be started turned out at 21/2 to 3 full turns from lightly tight to ensure the proper amount of air/fuel is provided. Have you read the carb rebuilding tutorial on Basscliff's site yet?

I'll try that then. Is the mixture switch the one in my first photo?

Is his this one: Mikuni BS (CV) Carburetor Rebuild Tutorial www.mtsac... etc?
 
Yep, what he said... start 2 1/2 turns out from seated and go from there.
 
well it took a little while to figure out what was lightly tight, but I do believe I have it a good place now. Worst case is that I just play with it when the bike runs.... if it runs..
 
Yeah it can be awkward the first time to feel it just seating, but once you get it you'll be right.
 
Oh btw- Does anyone know a reliable place to purchase the float bowl gaskets?
 
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