More starting problems with my Pro-Hauler

[LonesomeTriZ]

A while back I had some issues with my 1989 Yamaha Pro-hauler not starting. After some work I found out is had a torn intake. After that it ran fine. I stuck it in the shed and left it alone for a few weeks. When I went out to use it was hard to start again. I sprayed a quick squirt of starting fluid and it started up and ran great. It worked all day with no issues. I would even shut it down for up to an hour and it would start again as soon as I touched the button. I have zero complaints about how it ran that day. The very next day I went out to use it and it would not start for anything. It ran on choke for a few moments but that was it. Since then I have tried a few times to start it with no luck. I do not want to use starting fluid anymore because I should not have to. I think something is out of adjustment in the carb. Any ideas as to what that would be? Maybe the needle needs to be re-positioned, maybe the float it off. If it is the float any ideas how I can find out where it is suppose to be positioned? What about the choke? Is there something with that I should look at?

Here are the specs on my Pro-Hauler:
http://www.yamahamotorsports.com/out...ler_small.aspx

[chrs]

How long has it sat? Have you ever rebuilt the Carb? Does your gas cap have a hose on it? Air filter clean? All could be a possible problem

[LonesomeTriZ]

I just rebiult the carb about a month ago. It does have a clear vent tube on the cap. The air filter and the fuel filter have bene replace and serviced recently.

[chrs]

How are your grounds? Is the pitcock clean

[LonesomeTriZ]

The petcock and tank are were cleaned as well.

[chrs]

Do you have a inline filter, if you do, check flow, if not still check flow.

[LonesomeTriZ]

I do and I did. The gas appears to be flowing fine.

[chrs]

I would clean Carb again. Check filter out again. Sounds like a air/fuel issue to me.

[chrs]

And check all connections.

[LonesomeTriZ]

I agree. However, I think the mixture is off a bit. Does the position of the needle have anything to do with it?

[chrs]

The position of the needle will toss it off. But you stated that it worked all day? Sounds like a connection problem to me. Had a 250x acted the same way, turned out to be the wireing harness.

[LonesomeTriZ]

I see, you are correct, it ran great for an entire day.

Owning this quad is like being in an adusive relationship. I keep it because of the good days it has.

[chrs]

When you first tried to start the bike, what did it do?

[LonesomeTriZ]

It just turns over. I do not hear it even trying to start.

[wisconsinite]

Got spark? I assume you've changed the plug? Checked the coil wire?.... But my gut tells me it's in the carb or intake....how's the compression?