I have had my 96 blaster for about 10 years and when i got it, it ran fine alittle cold-blooded but not to bad. About 5 years ago it stopped running it had spark but it would not fire, so i broke it all the way down to bare frame and did the usual, paint it, put new cable on, the basics and when i pulled the flywheel off i found a brokin woodruf key so i repalced that and put it back together and it ran fine. Then about 2 mouths later it quit running again so i broke it back down cause i wanted to change the paint skeem and frankly just got tired of workin on it all the time lol. It was apart in my basement up till 2003 when i had a house fire. The blaster and all of its parts survived the fire and i recently put it all back together and now it has weak spark. I put a different coil on, a new sparkplug and boot with the resistor in it, and a new control unit, still nothing has changed. I also picked up a cd manual for the blaster and went step by step through the diagnosis and still nothing. Has anyone had the same problem i have? I was thinking that after the house fire maybe the electrical system went bad from all the water the firemen were using to put out the fire? Also i pulled the flywheel off and my woodruf key is still good. Can anyone out there point me in the right direction? I would hate to sell it as parts cause it was a good running machine. Any info would be greatly appreciated! Thanks!
1996 blaster weak spark
- Thread starter wildbill20010
- Start date
I just ran into about the same thing. My blaster quit, no spark, I bought a new bar coil for the stator plate, changed it and I had spark. However that didnt fix it. It would start sometimes, but wouldnt rev up. I had changed the reeds, carb and exhaust at the same time. I was sure it had to be plugged exhaust or something. Ended up the new bar coil was bad. You can check them with a ohm meter, I think they should be between 192 and 228 ohms between the two terminals. Hope this helps.
I just dealt with this problem also.
Here are my thoughts. First, I have 2 coils. Neither one of them ohms out properly. They both work perfect. One is old, and one is brand new from Yamaha.
So - in some cases, even if your coil doesnt ohm out it might be good.
I have 2 stators. They both actually ohm out and read. One his high on the primary coil, and tests good on the secondary coil. The other one will read good on the primary and test low on the secondary.
The one that reads high on primary coil (black and black/red wires) works perfect. The other one doesnt.
So in my case, I was given a Blaster that wouldnt run. It was owned my girlfriends dad. It worked fine, then last year out at Flaming Gorge it died and I couldnt get crap for spark. I downloaded the manual for it, started testing stuff. Well, according to the manual, test primary and secondary ignition coils. If they dont test out, replace the coil, so because his didnt test out, he bought a new coil. We get the new coil on it, and of course it wont start up. He gets fed up with it and decides he wants a new quad. He gives me this thing, says its mine if I can fix it.
So I get on here, I find a used wiring harness with the CDI box, voltage regulator, etc. And I find a guy who sells me this used stator. I switch out the cdi box, voltage reg, still nothing. Start testing the stator, and it tests in, but I just cant get it to work. Switch out stators, and the damn thing fires up on the first try.
So, in my case it was the stator, and their ohm specs can mean something, and can mean nothing.
I know this doesnt necessarily help, but Im just saying, that if you change the coil and you still dont get spark, most likely your stator is the culprit.
Here are my thoughts. First, I have 2 coils. Neither one of them ohms out properly. They both work perfect. One is old, and one is brand new from Yamaha.
So - in some cases, even if your coil doesnt ohm out it might be good.
I have 2 stators. They both actually ohm out and read. One his high on the primary coil, and tests good on the secondary coil. The other one will read good on the primary and test low on the secondary.
The one that reads high on primary coil (black and black/red wires) works perfect. The other one doesnt.
So in my case, I was given a Blaster that wouldnt run. It was owned my girlfriends dad. It worked fine, then last year out at Flaming Gorge it died and I couldnt get crap for spark. I downloaded the manual for it, started testing stuff. Well, according to the manual, test primary and secondary ignition coils. If they dont test out, replace the coil, so because his didnt test out, he bought a new coil. We get the new coil on it, and of course it wont start up. He gets fed up with it and decides he wants a new quad. He gives me this thing, says its mine if I can fix it.
So I get on here, I find a used wiring harness with the CDI box, voltage regulator, etc. And I find a guy who sells me this used stator. I switch out the cdi box, voltage reg, still nothing. Start testing the stator, and it tests in, but I just cant get it to work. Switch out stators, and the damn thing fires up on the first try.
So, in my case it was the stator, and their ohm specs can mean something, and can mean nothing.
I know this doesnt necessarily help, but Im just saying, that if you change the coil and you still dont get spark, most likely your stator is the culprit.
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