Quick Help Please!
Guess I had a misconcepttion. I thought if I took the throttle cable cover off, with the cam screw I could adjust my accelerator pump so that it would either start the squirt sooner or later in relationship to the slide position.
I turned the screw full in and full out and could never get the squirt to actually hit the slide.
My original goal was to get the squirt to "just miss the slide". My thinking was that I could just turn it all the way in one direction (the direction that it would hit the slide) and then back off of the screw until it missed. Well, since I can't get it to hit the slide with either direction, now I "messed up" because like an idiot I didn't count the number of turns out from factory.
I guess my question is, do I have a misconception here? Again, I thought that by turning the screw at some point the fuel would hit the slide.
If I don't have a misconception, then what's wrong/what am I missing? AND how do I correct the situation now?
ANYBODY with ANY info on this reply appreciated. I wanted to ride today and whack this thing open!!!!!!!!!!

Your manual should have the recommended set up procedure for the AP timing screw. I'd tell you what it is, but my manual is 90 miles away right now.

When in doubt, check the book!

Tiddler-
Yeah, thanks. I found the recommended setting in the manual and can get back to that but I'm really trying to figure out if somethings wrong with something since I can't get it to hit the slide at all. Thanks. Wish I was 90 miles away from my manual (as long as I was going riding).

OK. I set the timing back to the factory recommended settingss (no big deal) and everything is running correctly.
However, I still have the above questions from 1st part of this thread. Anybody?

I think they changed the settings on the 03 carburetors, because I can't get my WR to do it either. I DID find that by backing the screw all the way out, until just a few threads hold the screw in, I can get the squirt VERY close to the slide. I even took a video and the squirt and slide movement are simultaneous, when looking at the frozen video frames.

I guess if you wanted to go further, you could bend the tab that holds the screw, but I don't see how I could get mine much closer. Of course I still have a slight bog, and am waiting on a 35, 40 and 50 leak jet to see if I can help it. I wish UPS would be a little faster! I've got a ride scheduled this weekend.

Good luck. Try your video camera if you want to see the difference in the squirt timing. Each frame is about .033 sec.

Barton-
Thanks for the "peace of mind". Still don't know exactly what I'm gonna do about the squirt thing.... humh

ummm....just to clarify, in a proper set-up, you never want the stream of fuel to hit the slide. This is what you should get following the procedure in the 03 manual.

Lastly, a bog is caused by either too much fuel or too little. A slightly lean mixture on the pilot circuit is usually ideal.

However, and here's the catch.

The main jet and needle effects the air-fuel ratio for all RPMs off idle. This, in combination with the too-lean too-rich consideration, is why the manual tells you to go one way, then the other, on the main and needle when dealing with an off-idle bog problem.

BTW - don't let those circuit graphs in the manual fool you.

DaveJ

DaveJ, I think what e.meyers and myself were after was adjusting the squirt so that it hits the slide, then backing off a little, thereby being as close to the slide as possible WITHOUT hitting it.

Please clarify what you mean by not being fooled by the circuit graphs.

First, how fast are you whacking the throttle open? If you do it slower than you normally would while in a riding situation, the squirt will not be as strong. If you twist it hard the squirt is stronger. Try doing it slower and faster to see what I mean.
If that isn't working out for you, check your AP part # against the numbers from the long "bog" thread you created earlier. If the larger sized stubb part# matches your part #, then that is your problem. Get some of the lower leak jet #s. Like 70, 60, and 50 expirement with each, noting how much stronger the squirt is the lower you go.
I am no jetting expert, I just slept at a Holiday Inn last night.

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That would be Holiday Inn Express, I believe.

Eddie, what is the scoop on this problem? I am curious.

Been Busy.
I'm gonna get back on it shortly.... maybe this weekend or beginning of next week after I change my fork oil
I'm probably gonna order the jets like you suggested and try that too. Still wrestling with drilling the carb thing.
Decisions, Decisions. For now it's Forks.

I dont know if this will be of any help or not, but when i was playing with the pump on my bike, i couldnt make the squirt hit the slide either. After i looked at it for a while and from several different angles i finally saw fuel kind of spread out on the slide where the squirt would hit if it were going to. I dont really remember where i set the screw, but i think i went to minimize the size of the circle that formed up on the slide. After a while i decided just to put the carb back on and see what happens. With my riding style, i rarly wack the throttle wide open, i usually just roll it on real slow, so the pump isnt as important for me as it is for other people.

The Vapors is what I went by. I also used a flash light in my left hand, while I twisted the throttle with my right. I never saw a "splashing of fuel hitting the slide". What I saw was basically vapors spreading on the slide. I then just backed it off a 1/4 turn at a time until it missed it. And re-tested. Then did it all again to make sure. Mixel, we need to get together next time we ride and look at your squirt. It wouldn't take long to do. Like 10 mins.

I'll check it next time i have the bike apart. I think i got it pretty close to right, i was just thinking 'hit the slide' meant gas splashing everywhere. If i cant get it right, i'll let you take a look at it next time we ride.

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Good to hear...ummm...read.

The graph is really an illustration based on the majority of fuel delivery and effect.

However, when you live with these things long enough, you'll quickly learn that as soon as you come off throttle the main is in effect, as is your needle size and clip position. And at full throttle, your pilot circuit is delivery the same, if not more fuel, than it was at 1/4 throttle.

DaveJ

OK, I see. Thanks.