Dog dies at full throttle

[BigJimCT]

Im getting most the bugs worked out of the 2000 Husky, but I got one Im not too sure where to start looking.

Few times now I have taken the bike out and it runs fine. As soon as I get on it, give it full throttle, I loose all power and the bike shuts down on me.

Idea's where to start?

Thanks guys.

 

[barhopper]

Whens the last time it ran good? Could be to lean. Wierd. So it runs great, till you give it full throttle? Sounds like its running out of gas. Check gas filter, gas cap vent, ect. Make sure it has plenty of gas.

 

[BigJimCT]

Whens the last time it ran good? Could be to lean. Wierd. So it runs great, till you give it full throttle? Sounds like its running out of gas. Check gas filter, gas cap vent, ect. Make sure it has plenty of gas.

I was thinking the gas caps honestly. The bike since I have had it (about a month now) has never really ran "good". Its ran...but always seems to be something.

Last ride I went on, went to fill up the right tank, and the paint saver ring unscrewed with the cap. I also think I might need to adjust my throttle cable because it seems to be a little loose. It should have had plenty of gas, I just had filled up.

This bike was in much rougher shape then I thought when I had bought it. Pretty much 7 years of abuse that I am trying to take care of now. Anyone in the CT area had any good luck with service shops? I dont mind a bit of ride to get there, as long as I know its a good shop!

Thanks again,
Jim

 

[Raywood]

Jim, sorry you are having problems with your new scoot. We can help all we can so hang in there.

As for the full throttle problem I would say you are probably running to rich. If you were lean it would be popping and back firing like running out of gas. Sluggishness is a richness problem. Was the bike setup to run in your area or did you buy it out of state?
If you could pull the float bowl and tell us what jets you have in there we could guide you a bit more. Also, tell us where your accelerator pump is set at; screw it in till it hits the arm and count the turns. Should be about 2 although I run mine at 1 1/2.
Hope you aren't using the enrichener to start the bike leaving it on cause it will foul your plugs real quick and cause the problems you are experiencing.

After that we will need to look at your ingition system but one thing at a time.


Good luck,
Ray

 

[lee]

have you looked at the plugs? they can provide a decent guide on your mixture - also clean your air filter and make sure your fuel lines are clear

 

[woodysan]

Gas line:

:flag: My son had the same problem with his (mine now)2001 Prosport,please check routing of fuel line from tank to carb,allow NO uphill flowing of gas. :2thumbs: W.

 

[BigJimCT]

Guys, thanks for all the suggestions. It looks like I have a new problem now! If its not one thing, its another haha.

I will check all the sugguestions you guys gave and let you know what I find out. As for the enricher, I really just use it to start the bike, as soon as it is running, it goes off.

Problem tonight now, was out all day long riding. Get home, go to get an allen key to tighten up mirror, then went to restart it and nothing.

Looks like I have a long weekend ahead of me....

 

[danosrs]

Hang in there, I also got a 2000 Husky that was not well taken care of, Had two different plugs, bad battery and cables, front tire with good tread but bead was not holding air, worn front and rear brake pads, starter idler gear exploded right when I thought all was good and required me to rebuilt it!! and today it would not idle but that was easy the little nipple on top of the intake manifold was leaking and causing vaccum leak. Now I plan to adjust the clutch since I can't get it in neutural no matter what I do.

For the will not start I would start with being sure the battery cables are clean and tight, then try to jump it with your car but not with the engine running to see if your battery is the problem.

 

[BigJimCT]

Hang in there, I also got a 2000 Husky that was not well taken care of, Had two different plugs, bad battery and cables, front tire with good tread but bead was not holding air, worn front and rear brake pads, starter idler gear exploded right when I thought all was good and required me to rebuilt it!! and today it would not idle but that was easy the little nipple on top of the intake manifold was leaking and causing vaccum leak. Now I plan to adjust the clutch since I can't get it in neutural no matter what I do.

For the will not start I would start with being sure the battery cables are clean and tight, then try to jump it with your car but not with the engine running to see if your battery is the problem.

I dont think its the battery. I just put a brand new one in. Also replaced the regulator trying to track down an electrical problem that turned out to be a short caused by a loose ground wire. On top of that, it had been running for about 3 hours, then turned it off and nothing.

Of course it wont want to run to....first day its going to be 80* out here.:angry:

 

[lee]

when you say you get nothing do you mean absolutely nothing at all? even though you have a new battery have you tested it?

 

[Raywood]

As Lee said get the battery "load" tested. Many new batteries are no good.

When you get nothing does that mean no lights, no battery at all?
I would look at the key switch and see if it's not working properly!

Hope you find it,
Ray

:flag:

 

[dogvet]

Im getting most the bugs worked out of the 2000 Husky, but I got one Im not too sure where to start looking.

Few times now I have taken the bike out and it runs fine. As soon as I get on it, give it full throttle, I loose all power and the bike shuts down on me.

Idea's where to start?

Thanks guys.

You say you loose all power, do you mean lights and everything or just the engine dying?

If it only happens at full throttle, you've probably got a loose or chaffed connection somewhere. If your are only loosing spark, check the Ignition module connections (including the ground wire that routes to the module mount.

The original Thunderheart ignition modules had the wires coming out of the side of the module and would chaff against the back side of the gas tank. Later versions of the module had the wires coming out of the rear of the module to prevent chafing.

 

[Vegas]

You say you loose all power, do you mean lights and everything or just the engine dying?

If it only happens at full throttle, you've probably got a loose or chaffed connection somewhere. If your are only loosing spark, check the Ignition module connections (including the ground wire that routes to the module mount.

The original Thunderheart ignition modules had the wires coming out of the side of the module and would chaff against the back side of the gas tank. Later versions of the module had the wires coming out of the rear of the module to prevent chafing.

Thats what I was thinking......connection or short somewhere. His first question determines which way I go with it.

 

[Raywood]

I think we need BigJim to give us a bit more information on whats happening at WOT. If it's shutting down completely then that's different that loosing power as in over jetted. I guess I read his first post wrong.

He does state that he was "out all day running" so hard to tell what he's describing as the problem here!

:flag:

 

[BigJimCT]

Sorry about the wording!

What happens when I go WOT, the bike looses all power and stalls out pretty much. I do not loose lights or anything else, just stalls.

I have load tested the battery, I did that as part of my tacking down where I had my electrical problem before. That turned out to be a loose ground on the coil, causing the neg terminal on the battery to ground to the frame.

Last nights problem was different. When I turned the key on, and switched it over to run, everything was noramal. Headlight comes on, speed-o does the test sweep. As soon as I hit the start button, it just clicks and lights dim. Nothing from the starter. It seems this whole bike is one big wiring mess, to the point where Im almost wondering if I should just rewire it all!

This weekend when I get some time to rip into it a little hopefully I will have a few more answers.

Thanks again for all the help guys!

 

[Black Dawg]

First question, where did the bike come from? It might be jetted for high altitude and at sea level is so lean it won't run at WOT.

If that's not the case, I'd totally disassemble the carb and do a major overhaul. It sounds like you have some circuits that are clogged or blocked by debri. At WOT all circuits (I believe) are feeding the engine (main, intermediate and fuel screw). If one is clogged you'd be lean, maybe to the point of total loss of power.

It is also possible that someone tried some jetting and tuning tricks to mask a dirty or malfunctioning carb too.

Or you might have a intake leak that leans it out too.

You need to disassemble it and find out what jetting it has, then return it to some baseline standard settings. I believe S&S has a pdf. file that gives this info.

Your no-start situation might be a bad starter. See if you can push start that bastard to rule that out.

 

[Gas Man]

Have you checked your circuit breaker if you have one on the 2000 dog?

If its poped, your bike would not charge the new battery and eventually (say 3hrs later) the new battery would be dead.

Do you run a battery tender on it? You should...

 

[BigJimCT]

Well I have eliminated the battery as the cause of my no-start. Went over to the garage last night to start poking around with the bike, and it fired right up. Ran it for a few min, turned it off, then started right back up.

This point I went out for about a 15-20 min ride, to get the bike warm. Get back to the garage, turn it off, bike will not start. I went to take the key out and noticed the key was warm....very warm. Touched the cover that goes over the coil and ignition and burned my hand it was so hot. Im thinking that probably has something to do with it not starting! I am going to check all the wiring again today see what that turns up.

I bought the bike out in Rhode Island, and I live in CT, so it wont be any major issues with carb settings that way. The previous owner did not take care of this bike at all, and the more I look into it, seems he did not really know what he was doing. I do have a hyper charger on the bike and Short Shot V&H pipes (which he took the baffles out so it pops like crazy as soon as I get off the gas). I do not know if the carb was ever set for the extra air coming in and out with the mods. That could lead to my lean problem as well I would think. As for my coil problem, go figure, he told me he just did replace the coil as well.

I hope I can have some more answers for you tonight after I look into it a little more.

Thanks again.

 

[Black Dawg]

You may be fighting two separate electrical issues. One, possibly the wrong coil. I can't remember, but I believe these bikes spec a single fire coil. Maybe he installed a dual fire and that's causing an overload. Or vice/versa.

Your starter might be a different issue. It sounds like the internal resistance gets too high when it gets hot which is a sign (I believe) of being worn out.

I'm not an electrical guy, so take it FWIW.

 

[lee]

yeah but Black Dawg he's got a 2000 - that would be a dual fire coil - could the hot coil cover be caused by the leanness? i.e. the engine giving off a lot of heat because it is running lean making the coil cover get hot too?