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Posted (edited)

not really because the both fire at the same time. it is harder to get the shorter one on an off though if you have them switched. but i do have after market wires so that is probably only my problem.

Edited by fast500#12
Posted
not really because the both fire at the same time. it is harder to get the shorter one on an off though if you have them switched. but i do have after market wires so that is probably only my problem.

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You are a F***ing idot, go ahead and switch your plug wires and see how long your engine lasts. And no both pistons dont fire the same time....take your head off and look at them...there not at the same height (slowly kick the engine over and watch them) and the engine would work if they did anyway. BTW the shorter plug wire should go on the brake lever side, long on the shifter side.

Posted
You are a F***ing idot, go ahead and switch your plug wires and see how long your engine lasts. And no both pistons dont fire the same time....take your head off and look at them...there not at the same height (slowly kick the engine over and watch them) and the engine would work if they did anyway. BTW the shorter plug wire should go on the brake lever side, long on the shifter side.

383551[/snapback]

 

Nice response here... Banshee~ no offense dude but you don't know what your talking about. Go out to your banshee and pull both spark plug wires out and hold them next to each other and kick the bike over a few times. You will see that both plugs actually do fire at the same time. This is called a wasted spark ignition system. Just because the pistons are 180* apart and the plugs fire when one piston is close to the bottom of the stroke doesn't mean the engine will wear out any sooner. The last time I checked the stock plug wires were the same length. Man you need to suck down a couple beers and sit in an A/Ced room for a few mins.

Posted (edited)

Who's the idiot now :P

 

Both plugs definately fire at the same time. One pick-up coil, two tabs on the flywheel... :shrugani:

 

Justin, welcome to the forum, hope you stick around, if you do, you'll soon see who the bullshitters and wannabe legends are... :cheers:

 

Banshee~, step up to the plate and claim your HQ asshole of the month award :D

Edited by J.J.
Posted (edited)

Here's a coil question, right before I just rebuilt my banshee the left side wouldnt fire all the time.. only at high RPM, I thought the jets was wrong, nope, nothing, so then I thought the topend was going out, took it apart seemed alright, then went ahead and got a complete new topend big bore,. put it together and now its still doing the same thing, only firing on the right side, could this be because of my coil going out? but yet it still has spark on that side, but it dosent seem like alot.

 

Oh yea, he is 100% right on "Wasted Spark" The Flywheel Pickups fire the ignition spark EVERY revolution. You get a spark on both the Ignition stroke and the EXHAUST stroke.So, two cylinders share the same coil AND (more importantly) get the SAME spark. Again, this means each cylinder gets exactly twice as many sparks has it really needs. One during the compression stroke and one during the exhaust stroke.

Edited by bansha60
Posted
Here's a coil question, right before I just rebuilt my banshee the left side wouldnt fire all the time.. only at high RPM, I thought the jets was wrong, nope, nothing, so then I thought the topend was going out, took it apart seemed alright, then went ahead and got a complete new topend big bore,. put it together and now its still doing the same thing, only firing on the right side, could this be because of my coil going out? but yet it still has spark on that side, but it dosent seem like alot.

 

Oh yea, he is 100% right on "Wasted Spark" The Flywheel Pickups fire the ignition spark EVERY revolution. You get a spark on both the Ignition stroke and the EXHAUST stroke.So, two cylinders share the same coil AND (more importantly) get the SAME spark. Again, this means each cylinder gets exactly twice as many sparks has it really needs. One during the compression stroke and one during the exhaust stroke.

383948[/snapback]

 

switch the wires around and see if the problem persist. if not it may be a bad cap or wire. good luck, this is a good way to tell if it is electrical or other when one clylinder is not running right.

Posted
Nice response here... Banshee~ no offense dude but you don't know what your talking about. Go out to your banshee and pull both spark plug wires out and hold them next to each other and kick the bike over a few times. You will see that both plugs actually do fire at the same time. This is called a wasted spark ignition system. Just because the pistons are 180* apart and the plugs fire when one piston is close to the bottom of the stroke doesn't mean the engine will wear out any sooner. The last time I checked the stock plug wires were the same length. Man you need to suck down a couple beers and sit in an A/Ced room for a few mins.

383654[/snapback]

That is some funny ass shit right there! You just got owned, banshee~!

 

At least lie to us and say you were just joking! :rotflmao:

Posted
That is some funny ass shit right there! You just got owned, banshee~!

 

At least lie to us and say you were just joking! :rotflmao:

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I was just joking :flush: no, but one of my buddies told me that...it sounded like it was true because one wire is longer than the other. J.J. I think sandstar allready earned that one in the detune cub thread. My bad fast500, sorry for blowing up banghead

Posted
:confused: Yeah I done that and it still didnt fire on the same side and on the other it did fire on the cylinder that it always fired on. I'm totally lost, I have rejetted it about 15 different jetting combo's and it still done the same thing, maybe the pickup on the stator is a little, but it seems as if both side wouldnt fire. I just recently rebuilt it, and before then it done the exact same thing. no Idea what it could possibly be? I'm getting extremely frustrated with it.
Posted

60, I had a similar problem earlier this year. I hadn't run the bike in a few months, ended up with little or no combustion on the left side until like 5 or 6k rpm. Swappered everything side to side (including carbs) and nothing helped. Tore the top end down, couldn't find a thing wrong. As a last resort, I replaced the crank seal behind the flywheel and that was it. I had put it in backward when I had the crank out for welding a couple of years before. It sealed up OK until I finally put the bike away for a while, then it must have dried out and started leaking air. As for diagnostic advice, this problem would show up on a cylinder leak test. I just didn't have the gear to test it, too lazy to take to a bike shop for it. The seal is a pain to repace though; might be work getting the leak test done prior to tearing into it.

  • 1 year later...
Posted
Here's a coil question, right before I just rebuilt my banshee the left side wouldnt fire all the time.. only at high RPM, I thought the jets was wrong, nope, nothing, so then I thought the topend was going out, took it apart seemed alright, then went ahead and got a complete new topend big bore,. put it together and now its still doing the same thing, only firing on the right side, could this be because of my coil going out? but yet it still has spark on that side, but it dosent seem like alot.

 

Oh yea, he is 100% right on "Wasted Spark" The Flywheel Pickups fire the ignition spark EVERY revolution. You get a spark on both the Ignition stroke and the EXHAUST stroke.So, two cylinders share the same coil AND (more importantly) get the SAME spark. Again, this means each cylinder gets exactly twice as many sparks has it really needs. One during the compression stroke and one during the exhaust stroke.

 

i had the same problem it turns out it was my spark plug. one of them was bad and after rebuild my problem swicthed cylinders so i swicthed out the plug and it ran great. lol

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