Help to identify a moto4 350

[Bobbles]

Hopefully someone can help me out, I purchased a 350 moto4 2wd while I'm trying to fix a dying honda. I can't see the vin number as there was damage and a bar has been welded where I think the vin should be, The decals say 350 moto4 Huntaway, it has the square gear change low, high, reverse up on the left of the handlebars and it has three rectangle lights up on the dash. after googling I'm struggling to find anything called huntaway, Any ideas? Thanks.

[Mech]

• I'd ignore the hunterway part, that's probably a local market name. You might find some reference to that name in a part listing site that's local(aussie or here).
• Here are the years  they were called moto4 overseas..
• 1986 1987 1988 1990 350 YFM350     YFM350ER Moto-4
  YFM350ERT Moto-4
  YFM350ERW Moto-4
  YFM350ERA Moto-4
  YFM350ERU Moto-4
• 1991 1992 1993 1994 1995 350 YFM350     YFM350D Moto-4
  YFM350ERE Moto-4
  YFM350ERG Moto-4
   

Edited November 21, 2024 by Mech

[Mech]

If you decide it's going to be one of those year ranges then I'd go to Babbits and open a new tab for each of those years of the model, then by clicking from tab to tab your eye will hopefully spot a flicker when one set of pictures is different to the tab before(your eye does notice the difference as a flicker), then take note what the difference is and go confirm which your bike has. Then you might find there is a tab or two with your version of that first difference you spotted, so close everything except the two or three tabs that have that part on and start comparing those tabs for any flicker/differences. That normally finds the model you have.. Then it gets tricky because even though you've found the year and basic version they use different electrics and carbs in different markets, so to be really certain that the service manual you download  is right you really need to study the wiring diagrams and make sure that the wiring is exactly the same as your bike. A good place to start is by looking at the cdi and noting how many wires it has, what shape the plugs are and what colour the wires are. Every detail of the cdi and wiring has to match.

Edited November 21, 2024 by Mech

[Mech]

If you give me the engine number I may be able to narrow it down...

[Gwbarm]

All Moto-4 models have the VIN code  marked on the frame near the left footpeg when seated on the ATV. However, this specific location may change from year to year. Other areas where you can find the VIN are between the engine and the A-arm, on the neck of the frame close to the triple-tree, or slightly forward on the front-left footpeg. Cleaning the frame with a wire brush will help make the VIN more visible.

 

[Bobbles]

The guy I bought it off thought it was an 88. By the left footpeg is where a long flat bar has been welded sadly, so can't see the vin. Where is the engine number stamped?

[Mech]

I think the right side of the engine, and you should see it if you look just below and in front of the body panel.

[Bobbles]

I found a sticker on an upright post it's very hard to make out and it has a tear in it, but this is what I can see: jy43hpno o  naq4    0 (the gaps are either not there or hard to read) there is also12/91 on the label. The only engine stamp I can find is I think: 1uyo 348 c3. The other thing is there is no manual start, only electric.

[Mech]

I can't identify it by the frame and engine number, but that 12/91 will be the date of birth.. Which I think will make it the YFM350D.. Look in babbits yamaha atv parts.. Download several service manuals.. compare details..

[Bobbles]

After much googling, I think it is a YFM350ER

[Mech]

Ok. Most the stuff in the service manuals will be the same in most respects. When we look in the supplement for a specific year it shows that they've changed the size of a bearing or shaft or gear or some part, and/or, and most commonly what effects us when doing work, that the ignition or carb has changed. Most of the small model/year changes don't make any difference to us working on the bike, but be real careful if referring to the manual about the ignition or carb.