ATVConnection.com ATV Enthusiast Community

Suzuki Discussions about Suzuki ATVs.

exhaust upgrade needed to be jetted??

   
Old Mar 7, 2011 | 06:57 PM
  #1  
Killfox2010's Avatar
Thread Starter
|
Weekend Warrior
Joined: Mar 2011
Posts: 8
Likes: 0
Default exhaust upgrade needed to be jetted??
I have a 89 suzuki lt250s. its 4 stroke and i was told that if i replace the factory muffler i would need to up the jets in the carb. Is this true and if so how much?
 
Reply
0
Old Mar 7, 2011 | 07:42 PM
  #2  
Scooter86's Avatar
Extreme Pro Rider
Knows Old ATV Questions!
Joined: Sep 2003
Posts: 5,127
Likes: 3
Default
If you move to a freer flowing exhaust, then that is true. Generally if it is JUST a slip on you will need to go up one or two sizes on the main, and possibly one size on the pilot
 
Reply
0
Old Mar 7, 2011 | 07:53 PM
  #3  
Killfox2010's Avatar
Thread Starter
|
Weekend Warrior
Joined: Mar 2011
Posts: 8
Likes: 0
Default
well the carb has a 110 main and 25 pilot factory and my friend put in a 112 main cuz its been bored .50 over. would that be enough to compensate??
 
Reply
0
Old Mar 7, 2011 | 09:09 PM
  #4  
Scooter86's Avatar
Extreme Pro Rider
Knows Old ATV Questions!
Joined: Sep 2003
Posts: 5,127
Likes: 3
Default
If it needed a bigger main for the overbore then that probably isn't enough for the pipe too.
 
Reply
0
Old Mar 8, 2011 | 09:56 AM
  #5  
Killfox2010's Avatar
Thread Starter
|
Weekend Warrior
Joined: Mar 2011
Posts: 8
Likes: 0
Default
oic......ok so if i can get ahold of a like 114 main, it would be enough for the pipe as well right?
 
Reply
0
Old Mar 8, 2011 | 04:09 PM
  #6  
Scooter86's Avatar
Extreme Pro Rider
Knows Old ATV Questions!
Joined: Sep 2003
Posts: 5,127
Likes: 3
Default
Maybe, you have to put it in and see how it runs, do a plug test, etc. It is always best to start out a bit rich(jet to big.)
 
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
2008 Polaris sportsman 500 ho efi solenoid wires????
jrooker6
Ask the Editor
11
Apr 21, 2016 07:35 PM
400ex owners another jetting post need some help please!
Bm400ex
General Chat
2
Jun 22, 2015 09:16 AM
Lt50 exhaust problem
alex_2011
Kids Quads
2
Jun 9, 2015 10:12 AM
chinese atv problem solved
blaze_master
Chinese Quads
1
May 26, 2015 11:18 AM
Tags
Back to Subforum
Suzuki
View Next Unread
700 and 750 King Quad foot peg question.

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

Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

All times are GMT -5. The time now is 08:04 AM.