Yamaha Discussions about Yamaha ATVs.

2004 big bear carb adjustment help

Thread Tools
 
Search this Thread
 
  #1  
Old 06-04-2007, 10:33 AM
albigbear's Avatar
Weekend Warrior
Thread Starter
Join Date: Jun 2007
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default 2004 big bear carb adjustment help

I need to adjust my rich/lean mixture on carb, what is the screw setting? I have it almost 2 turns out now, seems to be running rich. The screw that I adjust is on the bottom of the carb, is this the right screw? Also, what is the procedure on adjusting the valves.
 
  #2  
Old 06-04-2007, 10:51 AM
MrDumass's Avatar
Super Quad Patrol
Athens Archery Field Staff
Best lunch hour ever!
Join Date: Aug 2004
Location: In Da Skys
Posts: 38,878
Likes: 0
Received 0 Likes on 0 Posts
Default 2004 big bear carb adjustment help

<div class="FTQUOTE"><begin quote>Originally posted by: albigbear

I need to adjust my rich/lean mixture on carb, what is the screw setting? I have it almost 2 turns out now, seems to be running rich. The screw that I adjust is on the bottom of the carb, is this the right screw? Also, what is the procedure on adjusting the valves.</end quote></div>

Why do you need to adjust it? Did you add something aftermarket? The screw is in the bottom and its tough to reach without one of those stubby straight blades. Stock should be right at 2.... 2 /1/2 turns out. I think I have mine set at about 3 1/2.

As far as the valves go....I'd take it to someone.
 
  #3  
Old 06-04-2007, 10:58 AM
albigbear's Avatar
Weekend Warrior
Thread Starter
Join Date: Jun 2007
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default 2004 big bear carb adjustment help

Thanks, I took the carb apart, cleaned it, was idling rough. I adjusted the screw to where it was before, but seems like it was running rich before, so was just curious of the adjustment.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
neilbedwell
Buying an ATV
24
11-10-2018 11:02 AM
Ty Speece
Chinese Quads
15
07-02-2015 04:59 PM
regiedina@gmail.com
Other Makes
0
06-20-2015 03:19 PM
robj
Yamaha
3
06-15-2015 08:45 PM
Joe04785
Yamaha
2
06-15-2015 03:12 AM

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


Quick Reply: 2004 big bear carb adjustment help



All times are GMT -5. The time now is 12:53 AM.