Kids Quads & Other ATV's - Ask an Expert! An area where experts in their field will answer non-general questions about your Chinese made ATV. mywifesquad, LT80, LynnEdwards and other experts will answer your questions as they have time.

how to adjust valves on a yamaha moto 4 80

Thread Tools
 
Search this Thread
 
Old Oct 3, 2015 | 06:44 PM
  #1  
Carlosliquor's Avatar
Thread Starter
|
Weekend Warrior
Joined: Oct 2015
Posts: 2
Likes: 0
Default how to adjust valves on a yamaha moto 4 80

just wanting to know where i can find instructions or a video on how to adjust the valves and the settings
 
Reply
Old Oct 6, 2015 | 03:00 AM
  #2  
merryman's Avatar
Elite Pro Rider
10 Year Member
Liked
Joined: Oct 2013
Posts: 7,451
Likes: 387
From: Lancaster England
Default

I was hoping someone else would write in as I have only done this on later Yam 80s, and it was a long time ago. However I recon yours will be the same. Remove the screw in caps over the valves. Turn the engine onto top dead centre on the compression stroke, there is a recent posting in the Yam section about doing this on a Warrior. Check the inlet valve clearance, I'm not certain but I think it was 0.003", if it is out, slacken the locknut on this rocker arm, turn the adjuster, (anti-clockwise to increase clearance), tighten the locknut when the clearance is 0.003" and repeat for the exhaust valve. Re-fit the covers.
 
Reply
Old Oct 6, 2015 | 06:54 AM
  #3  
Carlosliquor's Avatar
Thread Starter
|
Weekend Warrior
Joined: Oct 2015
Posts: 2
Likes: 0
Default Thanks

Thank you, however I have found an online manual for the 4 wheeler. The steps you mentioned were correct. It purrs like a kitty. Starts on first try.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
buddieboy
Chinese Quads
4
Dec 9, 2016 05:50 PM
Zehno
Sport Quads
5
Jan 2, 2016 01:31 PM
blp
Yamaha
3
Oct 2, 2015 03:38 AM
maveikfe
1) Engine problems..
0
Sep 24, 2015 10:36 PM
lgardner61980
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
4
Sep 20, 2015 01:32 PM

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



All times are GMT -5. The time now is 10:11 PM.