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By Baldwin
I’m brand new to 4 wheelers and just bought a 1987 Yamaha Moto-4 350 4X4 to use for hunting. I say 1987, but not positive. The owner is not positive about the model year, but he said 1987 sounds about right. He also gave me his son's Clymer manual that covers 1987-1999. The frame has rusted just enough that the full serial number is no longer readable. I can read some numbers/letters, but it is spotty. Anyone know how to determine model and year if you cannot read the serial number? I have included photos.
So it started fine when I got it home, but it would only stay running if the choke was open even when warmed up. No identification numbers are stamped on my Mikuni carb to determine specific model. The choke is controlled by cable connection on dash, so it is not a model that has the choke lever right on side of carb. Since it would only start and run with choke open, I decided to rebuild the carb using the OEM rebuild kit. Took it apart, cleaned jets, orifices, replaced o-rings, gaskets, etc. After reinstalling the carb, the engine will still only run with choke open, but now the engine sounds like it wants to shut off and there is a consistent low volume backfire from the muffler. If I rev the engine, it sounds better, but still continues backfiring.
The fuel screw was seated at 2.5 full turns before I cleaned it so I put it back at that setting.
I’ve looked high and low trying to find a video of someone rebuilding my specific carb, but it appears there are many variations. Appreciate any guidance to get it back to running like it should. I have included photos.
Any guidance on figuring out model year would be greatly appreciated.
Thanks for your time.
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By I_AM_SHAUN
Hello everyone! from Northern Ontario, my son and I started our Project 87 230s recently. Hoping for some good info and ideas! Thanks
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By TravisCr
I live in North Eastern Wa, in Collville, and I'm trying to figure out if there are any good regional used parts dealers around here- Our town had a decent Polaris dealer- but dealer prices are what to be expected these days.
I've got some random little pieces I'm looking for and tired of scrolling ebay (2003 Polaris Sportsman 700)
These are odds and ends stuff and I'll probably end up on ebay- but figured I'd ask.
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By TravisCr
The family has two quads and have been asking where to ride around here- we are about 70 miles north of spokane and looking for places that are nice to go visit for beginners.
We have a 2003 Polaris sportsman, and a 2004 Artic Cat 2-up (I forget the size)
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