What kind of carburetor does a Yamaha XT600 have?
The XT600, and Yamaha TT600’s of the same vintage, had a dual carburetor induction with the primary manual (i.e. driven by throttle opening) and secondary in effect a CV (i.e. vacuum operated) sourcing from the primary fuel bowl. As the misfire was only evident at high revs the secondary carburetor was a likely candidate.
Is there a problem with my 1984 Yamaha XT600?
An 84 XT600 showed up recently with a top end misfire. This wasn’t too much of an issue around town but was a real problem at freeway speeds.
Is the rubber gasket on my Yamaha XT600 still working?
As you can see the rubber gasket has work hardened, flattened, and begun to perish. At this point, had we not had a rebuild kit, one would have to have been sourced.
What to do with a Yamaha carburetor overhaul?
With that in mind, the intent was still to disassemble, clean, replace the serviceable items and check and re-set tolerances. Here is the removed carburetor on the workbench with an overhaul kit (Japanese sourced – this is our default for Japanese carburetors) and the tools for the job.
The XT600, and Yamaha TT600’s of the same vintage, had a dual carburetor induction with the primary manual (i.e. driven by throttle opening) and secondary in effect a CV (i.e. vacuum operated) sourcing from the primary fuel bowl. As the misfire was only evident at high revs the secondary carburetor was a likely candidate.
What to do with dual carbs on XT 600?
In the old days, a cheap and cheerful but very effective conversion was to fit the dual carbs off the XR500/600R. An upgrade to that was to modify them to open together, instead of having the second one opening after 1/3 of throttle.
What kind of carburetor does a Yamaha SRX / TT use?
CARBURETOR KIT: YAMAHA SRX/TT/XT600 DUAL CR33 Description These Keihin CR Special Dual carburetor kits come complete with mounting spigots, and velocity stacks. Also, they can just bolt up to your stock filter system. These require a push-pull throttle assembly, which are available as an option.
An 84 XT600 showed up recently with a top end misfire. This wasn’t too much of an issue around town but was a real problem at freeway speeds.