Before I went to the stage 3 I had the tm 45 carb dialed in perfectly. So when I went to ride it after the install I was very suprised and upset to see that I had a very bad bogg / hesitation when I first start out sharply with the throttle. Not wacking fast just a good twist of the throttle to take off quicker than normal. But when I did wack it it would slowly rev to max rpm. Also forget about the woops. As you know woops require on and off throttle a lot. It would almost die out at the woops. Any way after a couple of days of playing with the pump settings and duration settings and all that. I finally think I figured it out. The squiter was as it always has been (I think), squirting juist to the right of the slide needle and into the throat of the manifold. Well, I watched closely and saw that it was squirting all the way into the intake port on the right. I thought, hummm....maybe it's dumping raw vuel in there and not mixing with the air like it suposed to be. So I redirected the squirter to squirt at the slide need so that it would break up the fuel streem. And I think that did it. I can now pump the throttle like mad and it just revs as it should. The real test will be tomorrow after work when I get a chance to take it out for a spin in the local wash. Any how does that make sence that the fule needs be be broken up and not just a streem of fuel hitting the back of the intake valve?

 

Larry get a 50 pump nozzle and a 30 pilot from RWR. Point the nozzle so that the stream hits the needle jet. Set your needle at the 2nd notch from the top (Lean setting) and use a 147.5 or a 150 main. As far as the pump stroke, you need a 1/8" gap at the start with a very short stroke 1/4" to 3/16".

 

yes that makes good sense - it must point straight at the needle, liquid fuel will not burn, it has to be atomized, only vapor can burn.
as far as the pilot, don't let pump behavior sway you into changing pilots for the wrong reasons. the pilot, needle clip position, and main jet must be dialed in correctly with the pump spring disengaged, so you can set them all correctly without the pump interfering and steering you down the wrong road. if you lean the pilot because the pump is heavy on the squirt, then you will be too lean when cruising at a steady 1/8-1/4 throttle over a period of time without throttle movement to cause any squirts.

 

LOL


i'll remember that next time im smoking by the gas can

 

yeah it is funny, and also very true.

 

Took it out for a spin after wook today. And that did the trick. Pointing the spray nozzel at the needle made all the diff.

Your right Scott, I need a #50 nozzel, The one thats in there now just flat out floods the crap out of it. So I have it set on the least amount of duration and not activated until the slide is up a good bit. I guess that works because at that point Im bringing in way more air.

Hightower, I read your post on tuning the 45. And did exactly what you said. Very good advice to. Made tuning easier and faster. Im sure all I have to do is drop the nozzel now and readjust the pump settings once the #50 nozzel is in. Cause it was dialed in before the pump.