2001 Yamaha Bear Tracker Voltage Rectifier
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By Brantley11
Hey everybody,
My proficiency is with Hondas and Yamahas make me see RED!
This bike is my brother in law's, it has 1199 miles on it and went from running great to dead with no start. Every once and a while it will start and sputter for 2 seconds. It is extremely sporadic when it fires but never runs for longer than 3 seconds.
Here is where we sit:
Brand New Fully Charged battery
Carb was cleaned with air hose and carb cleaner then into the ultrasonic cleaner with Aircraft aluminum cleaner
New Shindy Carb kit (made in Japan version)
Cleaned out petcock and gas tank
New 93 Non Ethanol Gas
New Spark Plug
It gets a spark through the spark test light every time
Bluish white spark
When holding the spark plug 1/4" - 3/8" away from head it will jump and spark to the head
Good Compression
Here are the readings:
Pickup Coil 519 Ohms (range 459-561)
Charging Coil 266 Ohms (range 270-330)
Lighting Coil 0.700 (range 0.702-0.858)
Spark plug Cap 10.58 Ohms (10kohms
Ignition Coil Primary Coil 0.5 ohms (range 0.18-0.28 ohms)
Ignition Coil Secondary Coil 8.20 kOhms (range 6.32-9.48 kOhms)
Would y'all think stator and pick up coil, rectifier or CDI are the culprit?
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By oxidized_black
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Clymer ATV Manual - Yamaha Raptor 700R
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By Need-help-with-quads
So I have an 89 Yamaha moto 4 250cc and when I ride it, itll get hot after like 10-15 mins and then will just die and turn off.
It's has new carb rebuild, new air filter, new battery, new spark plug so I don't think it's a crack in the spark plug
Can anyone help me?
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By 86ccord
Starting this build thread to keep up with everything on my build and hope to motivate someone!
I picked up this 2008 Yamaha Big Bear 250 2 weeks ago. A guy that I hunt with parked it at the hunt club for a year or so before I asked him if he wanted to sell. He said " fill my feeder and throw some batteries in my cameras, and you can have it". Sounds like a deal to me!
I have attached some pictures of how it sat under a tarp in the woods and when I got it home and cleaned up a little.
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By justent_88
Hello, im looking for some input on this situation i have. My 94 Mojave has no spark, and i have no idea what it is. Ive replaced/tested the magneto, the pickup coil, cdi, the ignition coil. Even the key and Killswitch. I haven't tested the harness its self, but i have tried another harness and still nothing. The only thing i can think of is the fly wheel itself. I have found a lot of metal shavings in the fly wheel and have cleaned it the best I could. But nothing happened afterwards. I am truly stumped here and hoping some of yous could shed some knowledge/ideas that could help get this thing to fire.
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