Just installed my TM 45 and got it running. I am running the following set-up:

155 main
57.5 pilot
stock needle - middle position
NO pump


I got the thing started and it seems to have some pretty good snap in nuetral. A very clean installation but I have to use the choke to start it up. Once it is getting warm, and I shut the choke off, it stalls.

what controls the idle? If it is the floppy screw (bolt and cable in a black tube) coming out of the carb, that doesn't seem to help. It feels like it just doen't want to idle high enough.

Throttle cable and mounting seems very clean, and again, the carb seems to have a little better low end response.

Any ideas for tuning or adjusting idle. If the idle is controlled by the floppy screw, why would it adjust the idle. I tried full clock-wise to the end position and it didn't make a difference.

HELP!

 

what ever pilot comes in the tm 45mm, stock, from ron woods should be ran.. then based on your altitude you should adjust main jet size if needed..people say yah run this pilot and put your needle on such clip ,but if it worked so well all of these other ways would'nt you think they would at least come from Ron Wood that way?what altitude are you at? and based on air density from day to night you will get a differant plug reading.

 

I think that Vegas is about 200 - 500 feet above sea level. The jet size really shouldn't have anything to do with the idle. That is as long is it's not WAY off and just dumping fuel. What controls the idle on that carb?

 

The Pilot air screw and the pilot jet.
If the idle is achieved with the air screw less than 1 turn out, the Pilot jet is too small. If you go more than 2 1/2 turns out than the pilot jet is too big.
Check for any air leaks.You can have problems at idle if you have any air leaks. Use WD-40 or similar paint-safe luqid around the junctions of the manifold, carb and heads. if the engine changes from its steady idle, if it surges or misses then there is an air leak.
Also make sure choke cable is fully seated in the elbow.

 

57.5 seems large on the pilot mine has a 47.5 and that seems a little bigger than what most run, seems if i'm remembering right most end up at 45 on the pilot. and the 155 main jet may be to big, i went back to the 150, the plugs were just covered in black everything. well if that doesn't help call woods they can help, they even have a book on jetting, they will probably send it to you free. it is the screw on the cable that controls idle

 

hey bigdaddy,


what it sounds like to me is that your throttle cable is bound up some where. and isn't allowing the slide to shut what is why when you choke it it runs good. did you put the woods cable on or did you modify your stock one?? you need to make sure that you have about an 1/8th to a 1/4 inch of play in the thumb throttle. i would say disconnect the thumb throttle and try and start it up and see if that works. that will help take this problem out of the equation.

i am jetted at the following and i am running at about sea level and it shouldn't be any different till you get over 3000 ft.

main 155
pilot 70
needle stock setting from wood

like i say i would disconnect your throttle and try running it and see what happens it sounds like your slide isn't closing to me.

 

On my TM45 I have a ........

96 needle
clip in 3rd groove down
150 to 160 main jet depending on temperature
either a 42 or 45 pilot jet

no hesitation
plugs look good
power feels good from idle to valve float

 

I will check the throttle slide. That could be what it is, I'll have to check it tonight. As far as the other stuff, I'll check to make sure that I'm in line with the rest of you guys. After I get it running pretty good, it will go to the dyno. I'll be able to let you guys know about how much the carb itself is producing and where in the curve it is producing it.

Thanks guys!

I'll let you know what happens.

 

that will be great i'd like to hear what the dyno says

 

Just checked on the throttle position, and the cable is as free as a bird. Completely removed the cable from the carb horn and removed the K&N to make sure that I had full action. Everythinglooks perfect. I checked the outside plug and it was VERY fouled. At least it wasn't wet! I will call RWR on Monday and see if they will send me a 45 pilot.

That being said, when the choke is on, more fuel is distributed right? That would mean that the pilot circut was starving. Just doesn't seem to add up. I checked for air leaks and there are none. Guess I'll start with 45 pilot and start crossing things off my list.

Any additional help would be appreciated.