MOPED ARMY

clean carb again. try adjusting your idle again. too low, and you will stall, too high, it will engage your clutches. not good either.

if it was me, i'd concentrate on fixing/replacing your forks before worrying about doing 40mph.

A good idle depends on a few things... A clean carburetor, no fuel or air leaks in or around the carb, especially no air/vacuum leaks between the carb and the cylinder. Set the float level where it belongs..

And get the engine nice and hot before adjusting idle.

Adjust idle on a cold engine and it will idle just fine when the engine is cold and die otherwise.

Fast idle speed is not really an idle. The carb is actually drawing some fuel from the main circuit in the carb, not just from the idle circuit.

As far as getting that thing to 40mph without a performance exhaust (as well as a couple other things) you will need more cubic inches.. or cubic centimeters... or a long steep hill.

ok i read all the posts in this thread and i have to agree with paul. replace that fork first.

clean the carb out thoroughly. make sure the bolts on the intake are tight. that year tomos is prone to vibration which causes the manifold bolts to loosen up. i recommend using blue loc-tite on them.

once the carb is clean, remount it and make sure everything is sealed and tight.

adjust the throttle cable so that when the choke is closed, going full throttle opens the choke.

after that start the bike up and warm it up. while on the center stand, adjust the idle screw so that the highest rpm can be attained without the rear wheel spinning. now, it may turn slowly, but if you can grab it by hand and easily stop it, thats good.

a bi-turbo exhaust with a #56 main jet in the carb will put you in the 40-42 mph range with the 27 tooth sprocket. i have the same bike with the same set up and easily run 42 mph.

If you want some good info on the Tomos mopeds inside and out check this site out: http://www.mopedriders.org/article_cat.php?fldAuto=2

Go to the Tomos sections. There should be 4 separate manuals on the Tomos moped with the A-35 engine. I have used these manuals to do all of the maintenance on my Targa.

yea but he's having idle problems. that wont apply here.

that is not the correct way to set the idle screw. no idle screw in the world has a set number of turns. you adjust these to attain the highest idle possible without the back wheel turning or the clutch engaging. would you want your bike to idle fast enough that it drives itself? i sure dont. and i know how to adjust these bikes as it is what i do for a living. if your screw is vibrating out, your missing the spring that goes on it.