Robin,
I ended up giving away my new VM26's....never could get them
sorted...and I'm pretty good at this stuff.
Went to a set of new Keihin PE24 race carbs, changed the main
jet...have run perfect ever since. They can also be had in 20 or
22mm. Sudco sells them...typically less than $100 a pop. I can give
you good info on the PE series carb setup.....for a 200cc bike anyway.

The VM series are primarily a two-stroke carb, they can be made to
work well on a four stroke but it takes time if there is no known
setup. There is a difference in the emulusion tube design between two
stroke carbs and four stroke. Most VM come with the two stroke type.

I do know a guy with VM26's on his 175 (200cc), and it runs
good....but then he has a personal dyno in his home shop :)

JohnnyB

--- In CB175RaceTech@yahoogroups.com, "Robin Halbert" <robin@...>
wrote:
>
> Thank you to everyone for showing in up Seattle and having such a
good time and riding safe. I had a blast and was impressed with all
the great people and there nice rides.
>
> I have in the past had just a wonderful time trying to get stock
carbs to run. Ghosts gremlins and leaks have been fixed and re-
fixed. I have spent the price of a new set of cabs in race fees on
several occasions. The problem with new carbs it that there is no
good baseline to start from. You buy a new sent of VM22's and spend
half of a season getting them to run right if they ever do. The
VM22's are cheep and should run great on a 160 with the right jets,
needles, slides, and tubes in it?
>
> Don M. you just go a set of VM22's? I know it crossed Mark's mind
this weekend. Don if you will bring your bike over I will supply all
the Dyno time it takes to figure the jetting out once and for all.
Don your bike is a good candidate because it is a .075 160 ( and I
believe it LOL) with high pipes that is darn reliable.
>
> Tom is trading with me for an O2 setup all we would need is a set
of junk high pipes and we could publish the results for every one to
use as a starting point. I went back through the archives of this
group and 175 group searching for any e-mail with carb or carburetor
in it. I read 1385 emails and have 10 different ways to jet a VM22's
that is "the hot ticket" for a stock bike. Main jets ranging from
80's to 125's and 3 different needle set ups. If you are in Don and
some one has a set of high pipes that they will donate I can start
any time. I am just not happy seeing a good racer like Mark in the
pits with a bike that is spitting gas and not having all the fun
possible.
>
> If some one has a comprehensive set up (needles, slides, needle
tubes, and main jets) pleas let it out. for the VM22 that will work
on a stock .075 over 160 with high pipes. Please no bull, guessing,
or second hand knowledge replies!
>
> Robin Halbert 229
>