Inherited 1990 Yamaha YFM250B Quad, mostly fixed up but now stuck, PLEASE HELP!!!
-
Similar Forum Topics
-
By ranchhelper
VinDecoderz says it's a YFM350 (Moto4 350) trim YFM350ER
Is that a Big Bear? Or a Moto 4? Or are they the same thing?
I've google'd around for information, and was able to find a (czech board in english) that had a Yamaha service manual for the YFM350X series, LIT-11616-YM-37. The 'Warrior' type. I'm trying to get something more accurate. I'm not sure which manual I need. Pictures included in this post.
I'm also looking to get a wiring harness for it.
-
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?
-
By oxidized_black
Yamaha ATV manuals are located in the downloads section here at QUADCRAZY.
Please visit the downloads section at https://www.quadcrazy.com/files/
Get 15% at emanualsonline.com with coupon code EMOAFF
Get 20% at emanualsonline.com with coupon code BLAZE and $50 purchase
Clymer ATV Manual - Yamaha Raptor 700R
-
By mga
I just saw a video on TikTok where some guy took the rear end off an ATV and bolted on a roto tiller in place of rear wheels. I wish i saved that video to post here....good thing it was 4 wheel drive...lol but, it seemed to work.
I'm not sure how he made it bolt on to the drive....
-
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?
-
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.