-
Similar Forum Topics
-
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.
-
By killerklown
Anyone have a link to a free YFM225 service manual? Just picked the ATV up yesterday.
-
By GERONAMO308
Hi all, does anyone know what type of plastic is used for making ATV fairings.
In particular Suzuki Quadrunner 1992, if i cannot get a plastic for it in Red for the rear i will attempt repair.
I have a King Chrome plastic welding kit, however you need to know what type of plastic you are welding.
Any advice would be greatly appreciated.
-
By Vlaco
Hi. I just joined the community. I have a sheep farm and use a Polaris 500HO, Polaris 700efi and a JD Gator 825i for different jobs around the farm. I do all the repairs myself so I am sometimes needing some advice and maybe I can be of some help to others as well.

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.