that's sweet wonder how hard they are to install in get it tuned just right
The American made OEM Tecumseh series 3 carbs are crap.
The Chinese after market ones are much better cast and machined.
Once you figure out what the issues are and make some adjustments to the low speed circuit these actually work pretty good and tune very easy.
You don't need the choke so remove that and use the primer to start it.
It bolts up to a Tillotson intake and uses the same filter adaptor kit.
Use some tractor pulling carb tricks like a float spring and a little epoxy to smooth things out inside and its a surprisingly responsive and easy to tune general purpose solution.
It suffers from a couple of problems.
It's hard to make a linkage for, and the throttle response is a little lacking compared to a dedicated race carb.
But I have made 6 of these now each a slight improvement on the last.
I am still working on an accelerator pump for it to try and cure the lag when you slam the throttle wide open on it.
I have yet to try out this last one.
This is a generation 5 carb.
I think its pretty good as is, but I built another that would flow more.
Its a general purpose carb for a general purpose solution.
Its about on par with GX390 carb, a little better throttle response from it and real good low speed performance.
if you watch real close you can see it gets away from Matthew here when he is a little too quick on the throttle at :04.
He may look like a big goofy kid, but he can ride ( well enough I considered having him race this bike at the king of pain )
But otherwise its very well behaved combination that you can ride all day.
I guess my point is if you put your mind too it you can adapt a lot of different carbs.
Question is can you tune?
http://www.youtube.com/watch?v=DumTKYt5d6o&list=UUYOkJf0MwNLWnL6CeCQLqYA&feature=c4-overview
