[effedupwarrior]

I just bought a 98 Warrior and it idles great (when it starts) but when you give it gas it falls on its face, backfires and dies if you get all the way into it. Ive been through the carb twice, its all clean, nothings plugged, its getting fuel and the air filter is clean and its getting plent of air. The valves are set correctly and its in time.

It doesnt have a good consistent spark though.

It will have an ok spark sometimes but only at idle and not all the time. When you hit the gas, it seems like the pick up coil isnt working properly perhaps, as I dont believe the spark is increasing, so it maybe igniting when valves are open because its not advancing. Hence the backfire.

Is this possible, or am I way off?!

I dont know alot about these, or the 350 engine for that matter and have had little experience with em.

Any help from you all would be awesome, im very new to bluetraxx, (registed today) but was reffered by a friend who had alot of good things to say about this community.

 

[effedupwarrior]

views...

If you read this and aint got no idea...can you take a few minutes to hit up some friends who might? Maybe have em read my thread and see if they have any input. Any info would really help. Thanks!

 

[366warrior]

look into the parking brake rev-limiter. i had the same problem. as a matter of fact, that's the exact reason i got my '03 warrior for $400. the quad ran like sh#! and nobody could figure it out. i pushed closed the p brake mechanism on the handlebar and she runs great ever since. look at the sticky at top of warrior page important topics. in there you can find a cure and many other cool projects and ideas.

 

[diggerzmound]

Check the parking brake first and then check the stator.

 

[effedupwarrior]

Ive done the parking brake check, would it cause no spark at all? Ive read about that possible cause in many other threads and posts, even on other websites. Never heard of it causing no spark though. Is there a way to bypass the park brake?

Diggerz can you give me a little detail about how the stator alone would cause intermittent loss of spark, and weak spark when it has one. Or are you referring to the stator as including both coils in with it. (The coils in with the stator/flywheel) I was under the impression the stator alone was on the charging side of the elec. system and didnt affect the ignition. It was the two coils in with it that affected ignition. Thanks for you replys, and I look forward to more, I will keep everyone up to date on how the diagnosis is going.

 

[bomber315]

the stator consists of three coils... the pick up coil, the source coil, and the lighting coil... the first two are obvisously ignition and the other is for charging and lights...

see the stator is not seperate from the coils, the stator IS the coils

sounds to me like a pickup coil issue... that or something dumb like a bad switch

 

[effedupwarrior]

Oh, ive always thought of the ring of wound copper as the stator, and then the pick up coil and source coil, because they can be purchased seperately, but technically yeah you and diggerz are right. Its possible to change only the pick up or source coil, but I believe if im pulling the flywheel, I might as well change it all, so im not pulling it all off again in a week.
Im still not sold on it yet, but im hoping when I pull the flywheel, I see a burnt winding, or find the pick up coil loose or dirty. Ive been told that not changing your engine oil can cause a collection of debris/metal on the pick up coil itself, and cause the symptoms im experiencing. Thanks, its awesome to get some spot-on replies on here, I will keep posting progress, please keep throwing me input!

Didnt have to pull the flywheel (sweeet) but there were no visible problems either. (booo) Gonna keep on checkin but hopefully a new stator package from rmstator will fix it. Damn thats a sweet deal!

 

[effedupwarrior]

Im waiting on my stator package from rmstator, keep the replies comming though in case im wrong! Thanks!

 

[effedupwarrior]

You smart mo-fos diiggerz & bomber it was the pick-up coil on the stator. I did an ohm test 2 figure out that it was a potential problem, and then trusted my gut. Thanx to all!!!

 

[bomber315]

right on... thanks for the credit and especially for the coming back and telling us your solution... now maybe if a person actually searches and finds your post they might not have to ask the same question twice....

did you replace the whole stator or just the pickup coil? i have seen places where they offer just the source coil but it is epoxy'ed onto the stator plate and im not too sure how easy or reliable it would be to change out... the pickup coil on the other hand is seperate (as you know but im just typing for others who might be reading along) and can be replaced by itself....

when you say you always considered the ring of wound copper (light and charging coil) as the stator you are partially right but like i said it also consists of the other coils too... there is some confusion on stuff like this from some people who think they know what they are talking about, and that might be where you got led astray...

 

[effedupwarrior]

right on... thanks for the credit and especially for the coming back and telling us your solution... now maybe if a person actually searches and finds your post they might not have to ask the same question twice....

did you replace the whole stator or just the pickup coil? i have seen places where they offer just the source coil but it is epoxy'ed onto the stator plate and im not too sure how easy or reliable it would be to change out... the pickup coil on the other hand is seperate (as you know but im just typing for others who might be reading along) and can be replaced by itself....

when you say you always considered the ring of wound copper (light and charging coil) as the stator you are partially right but like i said it also consists of the other coils too... there is some confusion on stuff like this from some people who think they know what they are talking about, and that might be where you got led astray...

Thanks. I replaced all of it. rmstator has a package that if its quality (time will tell) cannot be beat. Complete stator w/ correct harnesses, cdi, ignition coil, spark plug and 2 ice blue headlights for $224.95 SHIPPED! Even comes with an rmstator "got spark?" sticker! I only switched out the stator and lights, im saving the spark plug, cdi and ig coil for spares for now.
I really appreciate the positive direction I got from everyone involved, and I hope this can help someone out in the future.

 

[YannickC]

Hey,

First of al , i'm from belgium and i will do my best to speak English ;-)

I think i have the same problem like you.
My quad is not running for 6 weeks now and i payed more than 1000 euro for trying fixing it!

I just want to ask you to see this video and tell me of this are the same symptoms like your problem.

info : if you hear the loud ploffing, this is the moment i'm trying to give throttle.

Thanks

 

[diggerzmound]

Check the parking brake switch Yannick

 

[YannickC]

Check the parking brake switch Yannick

Thanks for the reply, but i already check the parking switch ;-)
BTW, the parking switch wil rev at 2400rmp, but my engine wil not run faster than 1000rmp.

BTW, Is there somebody that will PM the topicstarter?
I really need his help by showing him this video.
I cant send a PM because i need min. 15 posts!

Thanks allot !

 

[Deadlast]

YFM350.com.

Yannick, is it just that its running crappy like that? Whats your jetting like? (Stock?) Also, have you checke dyour carb boot for cracks? I dont think your issues are electrical, sounds more air/fuel related.

 

[YannickC]

YFM350.com.

Yannick, is it just that its running crappy like that? Whats your jetting like? (Stock?) Also, have you checke dyour carb boot for cracks? I dont think your issues are electrical, sounds more air/fuel related.

Yes the carbu boot is perfect, hole the engine is mechanical perfect. It runs perfect before a change the stator. So i`m 100& sure its a electrical problem ;-)

 

[imreallyquick]

could always be the cdi too...but theres no way to check it best thing to do is to check your stator with a multimeter

 

[Deadlast]

could always be the cdi too...but theres no way to check it best thing to do is to check your stator with a multimeter

Yupp! I agree. I thought I read that he replace all those components though? Humm.

Check the stator and coil with a meter. Pull the pulg and press the starter (hold for a little bit) look to see if you have a strong constant spark.

 

[YannickC]

could always be the cdi too...but theres no way to check it best thing to do is to check your stator with a multimeter

I did al this before a 1000 times ;-)
Everything is new also the stator but the stator is a 97-01 type (i have a 2002 warrior!) so now i buy a original 2002 stator for my warrior (not delivered jet) I let you know if i get this stator ;-)

 

[david6789]

I have been reading this guy posts for a while. It seems he keeps replacing with parts that are not compatible with is model/year; and just splices/alters the plugs to fit. I am pretty sure he should just buy the proper parts and install them.