Mikuni TM 40

Mad Frosty wrote:i dont know yet what the perfect setting is but i am  at 1,8mm  up from  the factory setting

I assume you mean the float level is +- 21mm?

Yes it arrived today so I though fork it I''l play with it instead of doing house work...

also should the float rest on the float needle or should the float level be measured with the spring compressed

The answer is uncompressed hence the reference to the 10-20 degree tilt in the manual.  

deleted a dumb question...

The factory setting is 19 mm , measure that before you change it , so you will learn the correct way of measuring , it will come set at 19 mm , i have found that in order to get the propper measurement the tilt of the carb had to be bit bigger than 20 degrees , it needs to just touch the pin without pushing it in , not easy but important otherwise you will mess it up .

Start with 20 mm and test it , make sure you will try the hill starting .

cheers,I set mine at 21 but need throttle cables

I presume you have cables by now, i got mine made up by VenHill Engineering in Dorking.

Mad Frosty wrote:

I really needed this picture 2 months ago when i needed to put it back to stock and couldn't work out how to measure the 19mm. I got fuel out of all the overflows at one point.

Yes i already have new cables, but will keep VenHill Engineering in mind for the next time...

Also you win the award from most overflows overflowed  

The3 TM40 does not need altering the floatlevel to prevent peeing when leaning over on the sidestand, only the std carb needs it sometimes.
Fwiw.

MotionPro makes cables Appletjie, got mine from them and they're good. Measure accurately though (I guessed mine, fine though), always helps to get what you need.