The BST36 carburetor comes stock on the GSF1200…
I think it’s an absolutely wonderful carburetor.
Great serviceability ☆ Both the top and bottom covers are secured with just two bolts, which is really handy when you’re tuning.
The slide valve needle is replaceable! The slide valve action is truly impressive! You can reduce the body easily!
Just being able to swap this out means you can keep it running for years.
The throttle cable has two pulls ♪ Just having a return side makes a real difference. Single-pull BST carburetors like those on the R1100
have sharp response from full closed. But with just two pulls, amazingly the response becomes milder.
I think two pulls are easier to manage than one.
Synchronization is easy to set ★ The top cap has a sync adjustment port, so it’s super convenient~
You can reach it right after lifting the tank—this thing is great ♪ The Bandit is a pain.
Now, to keep this thing running smoothly, it needs regular maintenance.
Since there are many O-ring-sealed areas, make sure to replace them all!
The O-ring in the float section in photo 3 must be replaced—if it slides in too easily, it’s loose and that’s essential!
The area shown by the screwdriver in photo 4 also needs replacing! The float valve sits here, and if it’s loose, fuel will leak sideways and the fuel level will
rise.
Photo 5: This T-fitting has a mesh filter inside, so when you disassemble it, always disconnect the hose and
clean it.
Photo 6: This white part comes off, so please remove and clean it. There’s a lot of gunk in there…
Photo 7: The removed part! There’s an O-ring here too, so replace it ★ If this deteriorates, it will also suck fuel from the side of this block and
cause problems. By the way, the GSXR KLMN also has this O-ring, but it’s not listed in the parts
catalog, so using the one from the GSF is a good idea.
Photo 8: The top cap O-ring is easy to lose, so a light coat of grease will help~
Also, by the way, the GSF1200 has several errors in its parts catalog, so
watch out! There are mistakes in the fork section and carburetor O-rings, so be careful!
I wonder if they’ve fixed that by now?
Not shown in the photos, but the pilot screw O-ring is essential too.
Everything else is standard~ Check the needle wear (shine) too~
Pokidam
