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Posted

Took it out today, got about 10 hours on my new motor. Ran Strong all last weekend and earlier this week, jetting was almost spot on, tad rich on the main, but it was close and pulled good throughout the powerband. Always started right up, 2nd/3rd kick all the time.

 

Earlier this week I noticed somthing wierd when riding. I was luggin it in 4th, and slipped the clutch to get on the pipe, and when i pulled the clutch. It did nothing. No rev, no noise... It was like the motor completly cut out, slipped it a 2nd time and got the same thing. Third time was the charm. Got the pipe after that. This was the only time it did this. Also on the same day I noticed it was breaking up at WOT, not bad though. STill pulled hard but rather than a smooth "raaaaaaa" it was like" raaa ba raaaa baba raaa" LOL you know what i mean.

 

Here is where it gets bad. Today it was starting to break up real bad @ WOT, so i tried swithing the jetting. Helped briefly, but the problem soon got worse, and spread to other spots of the powerband. Little later it was REAL bad on the bottom. It was all i could do to keep the thing alive under 6000RPM, and even when it was above that the power sucked. So more jetting right... go tune, now it wont start....get a tow and try it. Bogging even worse now. At this point i had been from a 160 to a 175 main, tried 48, 50, and 52 pilots, and moved the needle everywhere. Since i was lost I called Jim at passion. He said he thought that it could be an ignition problem... possibly a sheared woodruff key or somthing????? Bu tive yet to check that.

 

Then my friend asked me if I had my lights on the entire time. I am not 100% sure but i think they were, and he said they werent on the entire time. So i started to think possilbly a fried statorl. But Im only running 35W trailtechs so WTF? I checked for spark when i got home and i get a nicde blue spark. (not sure whats normal since i never checked it before but it looked okay to me :shrugani: )

 

Sorry for the extremly long post, just wanted to get all the info out there so you guys could give your opinions. Ive been banghead all day

Posted

First, the lighting side and ignition side of the stator are totally seperate, so whether or not the lights work is irrelevant.

It sounds for sure like an ignition problem, first thing to do is to set jetting back to where you had it initially, then leave it alone. -I have had similar type problems in the past where I screwed around with something, then found out it was something else, but forgot to reset the first thing I messed with; then after I found and fixed the real cause, had a new problem based on my initial screwing around and had to chase my tail around yet again. VERY FRUSTRATING! So that's the first thing.

If you just had the bike apart, you may need to look and make sure all the connectors are good- unsnap em and inspect for bent pins, burned, or etc. then snap together again.

I would definitely swap out the plugs.

You're probably gonna find it's the ignition wires, the symptom sounds right. They will sometimes give a good spark on a visual check or at idle, but the spark will break down under load.

It's definitely not the CDI, they just die completely. Coils can break down under load, but they're a lot tougher than plugs and wires, I would look at that last.

Good luck, hope this helped!

Posted

i agree 100% with ssanddemon! sounds like its electrical try all the connections, or doing a wattage tester from the stator, and a spark tester for the coil

Posted

I would definitely swap out the plugs.

 

 

You're probably gonna find it's the ignition wires, the symptom sounds right. They will sometimes give a good spark on a visual check or at idle, but the spark will break down under load.

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Swapping plugs was one of the 1st things i did. When the problem started i had old ones in. I put new ones in and it soon started to get worse. It wasnt right away, but slowly worse, to the point Im at now.

 

By ignitiion wires do you mean the plug wires, or just some other wire that is part of the ignition circuit?

 

Lastly, how do i check the wattage, and spark?

 

thanks a lot guys

Posted

Well I checked the continuity of the stator, and its good, however I havnt yet checked the output. I then pulled the flywheel to check the woodruff key and all seems well there too. I dont know exactly what a sheared one would look like, but mine looks perfect, so Im ruling that out. Tonight after work I will check the rest of the wires / connections.

 

This sucks, i have a sanctioned drag race event sunday that i would really like to make it to.

Posted

Sounds stupid, but be sure to check that the coil is grounded good against the frame. Also, I hada problem for a little bit exhibiting the exact problems you describe when my primary ignition wires, (the orange and black wires on the coil) were loose on the connections. I had to take pliers and crimp them a little to get them to fit properly, and hold snugly.

Posted

Yep, spark plug wires is what I mean. Usually you can snip off 1/4" or so then screw em back on, but I have seen them arcing thru the insulation lots of times, probably be easier just to pick up some new wire (use solid core like the bike comes with). It should only cost a coulpla bucks.

For stator output, you are looking for is somewhere around 13 to 15 volts to the coil when kicking it over. If you have a hot blue spark, you should already have that though.

If new wires don't fix the problem, I would throw a new coil at it.

Posted (edited)

halfway there. I got it to fire...3rd kick :headbang: . I couldnt have been happier......

 

 

Then i noticed it was only hitting on the ride side at idle :cry: .....Im guessing that is probably a jetting issure though since when i give it gas and it gets to 2000-2500 rpm it kicks in. Kinda late to mess with that though. I doubt the neighbors would like that one bit.

 

Thanks a lot guys. :cheers::notworthy:

Edited by white trash
Posted
halfway there. I got it to fire...3rd kick  :headbang: . I couldnt have been happier......

Then i noticed it was only hitting on the ride side at idle :cry: .....Im guessing that is probably a jetting issure though since when i give it gas and it gets to 2000-2500 rpm it kicks in. Kinda late to mess with that though. I doubt the neighbors would like that one bit. 

 

Thanks  a lot guys.  :cheers:  :notworthy:

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I don't think it's the jetting.Either a slide out of sync or,If you have stock carbs.,the TORS could be acting up.

Posted
I don't think it's the jetting.Either a slide out of sync or,If you have stock carbs.,the TORS could be acting up.

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Its got 33 MM PWK's

Posted

Could be a clogged jet, or a severely dirty air filter...I'm leaning towards boonman's theory though, your problem could easily be a wiring issue. Check all plugs and connections to make sure they are snug. Grounds should be tight and must be on metal (opposed to paint/powdercoat, etc.) :cheers:

Posted

Looks like i had 2 problems. Got the ignition problem out of the way, then only one side would fire. So on to the next problem. Why is only one side hitting... heres what i found.

 

Fuckin broke reed banghead . Oh well, glad i found it. Where is a good place to get new fiber's for v force 2's?

Posted
I have a set of Boyeson power reeds that have never been opened, still in the plastic if you just want a quick easy replacement. If you want the carbon fiber or v-force; I've always used Rocky Mountain ATV for a majority of my purchases.

 

Rocky Mountain ATV

 

:cheers:

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it had v force 2's in it. I already ordered replacments.. thanks anyhow

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