Need parts for Yamaha YFM100 Champ (YFM80, YFM50) - ATVConnection.com ATV Enthusiast Community

Go Back  ATVConnection.com ATV Enthusiast Community > Brand Discussions Area > Kids Quads
Reload this Page >

Need parts for Yamaha YFM100 Champ (YFM80, YFM50)

Kids Quads Discussions about Kid's Quads and other ATV's.

Need parts for Yamaha YFM100 Champ (YFM80, YFM50)

  #1  
Old 04-04-2006, 04:22 PM
Range Rover
Thread Starter
Join Date: Mar 2002
Posts: 188
Default Need parts for Yamaha YFM100 Champ (YFM80, YFM50)

I recently picked up a 1990 (I think) Yamaha TFM100 ATV pretty cheaply and need some parts for it. Someone messed up the rear axle and the rear brakes may need some work, so I'm considering replacing the whole rear axle assembly. Does anyone have a parts machine from which they'd sell one at a decent price? It's my understanding that any rear axle from a 1990 or newer YFM100, YFM80 or YFM50 will work.
Oh, and I also need the front guard.

Thanks in advance
 
  #2  
Old 04-04-2006, 05:25 PM
Pro Rider
Join Date: Jun 2005
Posts: 442
Default Need parts for Yamaha YFM100 Champ (YFM80, YFM50)

I have the mid gear if its bad, as for the rearend, I just rebuilt a rearend on a 1985 model YFM80, so I know where to get the parts reasonable. pull it apart and see what the ring and pinion look like, the pinion will be 118 dollars the ring (which is part of the axle) is like 350 bucks, hopefully if anything sheared its the pinion, on mine I had to replace all the bearings and seals through the entire rear end 80 bucks for all the bearings. if you need any help just hit me up.
Bob
 
  #3  
Old 04-04-2006, 05:43 PM
Range Rover
Thread Starter
Join Date: Mar 2002
Posts: 188
Default Need parts for Yamaha YFM100 Champ (YFM80, YFM50)

Yup, the pinion is definitely shelled, but the ring seems to be ok. However, there seems to be about 1/4" of side to side "play" in the rear axle, and it appears that someone welded the axle nut that's on the right end of the axle to the axle itself, so I don't know if I'll be able to salvage it or not. I'm guessing that's the reason the pinion shelled out, since it would have allowed the ring gear to become disengaged at times. I was hoping to find a complete rear end since I was planning on replacing all the seals and bearings if I fix this one. I may take you up on your offer once I dig into it. That welded nut has me bothered, though.

Thanks for your fast response.
 
  #4  
Old 11-26-2018, 07:43 PM
Weekend Warrior
Join Date: Nov 2018
Posts: 4
Default Yamaha moto 4 champ

[Hi, I came across thisbokd posting today and I hope u are still on this site. I just got a Yamaha champ 100 for my son as a Christmas present and the ring gear is blown. Do u still no where to find one. Please help.
thanks
josh

QUOTE=bruteforcebob;1955684]I have the mid gear if its bad, as for the rearend, I just rebuilt a rearend on a 1985 model YFM80, so I know where to get the parts reasonable. pull it apart and see what the ring and pinion look like, the pinion will be 118 dollars the ring (which is part of the axle) is like 350 bucks, hopefully if anything sheared its the pinion, on mine I had to replace all the bearings and seals through the entire rear end 80 bucks for all the bearings. if you need any help just hit me up.
Bob[/QUOTE]
 
  #5  
Old 11-27-2018, 02:24 AM
Extreme Pro Rider
Join Date: Oct 2013
Location: Lancaster England
Posts: 3,612
Default

Take a look in the Yamaha section. someone in Sweden has just fitted the rear end from a "Chinese copy" into their little Yam due to rear end failure. https://atvconnection.com/forums/yam...ar-axle-2.html
 
  #6  
Old 11-28-2018, 04:12 PM
Weekend Warrior
Join Date: Nov 2018
Posts: 4
Default

Thanks merryman, i actually found a usd axle with a ring gear on ebay lastnite and ordered it. A little pricey. $450 canadian. But shouod be a great atv for my son just n tme for chismas. I am still gonna keep my eye out for a chinese atv and pick up a cheap one to have a spare rearend incase this one blows in the future. They dont have a dipstick for oil and it does have a grease fittiing though. Its a 1988 moto 4 champ 100cc. I guess in 1989 they switched them so the rearend had dipstick and the ring gear wasnt attached to the axle, which would be alot better
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ean
Yamaha
6
04-14-2016 09:51 PM
Peter_
Yamaha
2
07-18-2015 07:06 AM
ghost civic
Yamaha
0
07-15-2015 10:48 PM
Chocobamofo
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
1
07-10-2015 07:46 PM
ATVC Correspondent
Classifieds, Garage Sale & Swap Shop
0
07-07-2015 11:00 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Need parts for Yamaha YFM100 Champ (YFM80, YFM50)


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: