Yamaha Discussions about Yamaha ATVs.

help please

Thread Tools
 
Search this Thread
 
Old Feb 18, 2019 | 07:29 PM
  #1  
robbie5516##'s Avatar
Thread Starter
|
Weekend Warrior
Joined: Feb 2019
Posts: 4
Likes: 0
Default help please

i have a 1997 big bear 350 4x4 when i bought it the front drive shaft was missing all it was the u joints an yokes but i am having trouble trying to get the u joints out to replace them need help please
 
Reply
Old Feb 19, 2019 | 03:01 AM
  #2  
merryman's Avatar
Elite Pro Rider
10 Year Member
Liked
Joined: Oct 2013
Posts: 7,483
Likes: 387
From: Lancaster England
Default

There will be circlip grooves on the bearing caps inside the yokes, (take a look at the new spiders). You knock these clips out with a screwdriver and then you can knock the caps through the yokes. Swine of a job, I did it yesterday on a Suzuki 400KQ. Getting the new ones in is usually even harder.
 
Reply
Old Feb 19, 2019 | 09:04 AM
  #3  
robbie5516##'s Avatar
Thread Starter
|
Weekend Warrior
Joined: Feb 2019
Posts: 4
Likes: 0
Default

Originally Posted by merryman
There will be circlip grooves on the bearing caps inside the yokes, (take a look at the new spiders). You knock these clips out with a screwdriver and then you can knock the caps through the yokes. Swine of a job, I did it yesterday on a Suzuki 400KQ. Getting the new ones in is usually even harder.
i tryed that an the caps are rusted they wont come through the yoke
 
Reply
Old Feb 19, 2019 | 09:13 AM
  #4  
robbie5516##'s Avatar
Thread Starter
|
Weekend Warrior
Joined: Feb 2019
Posts: 4
Likes: 0
Default

is there any videos out there on that
 
Reply
Old Feb 20, 2019 | 02:48 AM
  #5  
merryman's Avatar
Elite Pro Rider
10 Year Member
Liked
Joined: Oct 2013
Posts: 7,483
Likes: 387
From: Lancaster England
Default

Probably, but I suspect you have underestimated the amount of force needed. I had to use a 4 pound lump hammer and heavy drift to get the new ones in, though the old ones weren't too bad to get out. One problem is the yokes spring apart as you drift the bearings, making them jam in the yokes.
 
Reply
Old Feb 20, 2019 | 08:50 AM
  #6  
Jered651's Avatar
Pro Rider
Joined: Apr 2017
Posts: 234
Likes: 0
Default

look it up on youtube
 
Reply
Old Feb 24, 2019 | 07:35 PM
  #7  
db_tanker's Avatar
Trailblazer
Joined: Feb 2018
Posts: 26
Likes: 0
Default

I have had the pleasure of having to replace the u-joints...you are really ahead in getting yourself a good c-frame press to assist you.

plus you need to be careful...check the front diff to make sure its good as well. if there are any issues with the front drive line then you can possibly bugger the rear driveline as well.
 
Reply
Old Feb 25, 2019 | 07:31 PM
  #8  
robbie5516##'s Avatar
Thread Starter
|
Weekend Warrior
Joined: Feb 2019
Posts: 4
Likes: 0
Default

i did not find any on that
 
Reply
Old Feb 26, 2019 | 07:19 PM
  #9  
db_tanker's Avatar
Trailblazer
Joined: Feb 2018
Posts: 26
Likes: 0
Default


I love how this guy is so calm about it...I'd be cussing lmao
 
Reply
Old Feb 27, 2019 | 02:32 AM
  #10  
merryman's Avatar
Elite Pro Rider
10 Year Member
Liked
Joined: Oct 2013
Posts: 7,483
Likes: 387
From: Lancaster England
Default

Not very informative, as he doesn't show how you change the spider. Incidentally I have a 400KQ with the front diff so shot the whole front UJ yoke and 2WD/4WD shaft had come out of the diff and flailed round, knocking lumps out of the diff casting. Also a Honda 500 on which the front diff bearings had broken up too, leading to it locking and smashing the rear prop shaft UJ, which is probably what has happened to the Big Bear in the video. Great working on Quads, particularly the Honda which belongs to Cockle pickers, so every nut and bolt is seized solid by the salt water.
 
Reply



All times are GMT -5. The time now is 07:30 PM.