Yamaha Sport ATV Forum

Warrior acceleration issues

This is a discussion on Warrior acceleration issues within the Yamaha YFM350 Raptor/Warrior ('87-Present) forums, part of the Performance /Technical category; I bought my 1991 warrior with bad rings or so I was told. I ran it this winter smokin like a train. come early spring ...


Go Back   Yamaha ATV Forum > Performance /Technical > Yamaha YFM350 Raptor/Warrior ('87-Present)

Reply
 
LinkBack Thread Tools Display Modes
Old 07-05-2011, 11:19 AM   #1
Junior Member
 
Join Date: Jul 2011
Location: Tennessee
Posts: 1
View Wnorth's Photo Gallery(0)
sad Warrior acceleration issues

I bought my 1991 warrior with bad rings or so I was told. I ran it this winter smokin like a train. come early spring I tore it down to find a keeper ring had come lose on the wrist pin causing the piston to chatter. There were deep half moon groves cut into the top and bottom of the cylinder wall. Cost effectiveness led me to have the can bored 40 over and buy a new wisco prolite piston w/rings. Well here is the delema even with the smoking the bike ran fine. Post repair It will idle perfectly. But when you hit the throttle it bogs holds there then dies. I have:
-checked and double checked the timing
-cleaned , cleaned, and cleaned the carb.
-bypassed the parking brake safety rev limiter switch.
-checked my compression which is at 145#

I thoought maybe it was draining the bowl but as soon as it dies i can hit the start button and it fires right back up.

I am a 20 holder of an automotive mechanics ASE certification and this 4 wheeler is making me crazy. please help me
__________________
Shiny side up rubber side down
Wnorth is offline   Reply With Quote
Old 07-05-2011, 01:13 PM   #2
Senior Member
 
1998yamahawarrior's Avatar
 
Join Date: May 2010
Location: Hazel Green, Wi
Posts: 203
View 1998yamahawarrior's Photo Gallery(3)
Default

Have you rejetted it?
__________________
1999 Warrior Lonestar +2 a arms, swinger, Durablue +2+4, Renthal bars,sprockets, ITP beadlocks, Trail Tech lights, DG skids, nerfs, bumper, PRM wide grab, Spider grips, CFM airbox, Uni, clutch cover cooler, Big Gun exhaust, Works Black Widow fronts
1998yamahawarrior is offline   Reply With Quote
Old 07-09-2011, 08:47 PM   #3
Senior Member
 
cupofjoe_84's Avatar
 
Join Date: Apr 2011
Posts: 198
View cupofjoe_84's Photo Gallery(0)
Default

I was going to say the same thing. I bet you need different jets. You can only change the pilot jet, main jet, and move clip on needle jet. You are running rich or lean I bet. Best way to find out is to look at plug. Black is rich, white is lean.
cupofjoe_84 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Yamaha ATV Forum > Performance /Technical > Yamaha YFM350 Raptor/Warrior ('87-Present)

Tags
acceleration, bogging, warrior


Search tags for this page

yamaha warrior acceleration

,

four wheeler accelaration issues

,

warrior 350 acceleration limit

,

yamaha warrior acceleration problems

,

1991 warrior motor problems

,

warrior 350 acceleration

,
yamaha warrior 350 stalls when accelerating
,
yamah electric 350 throttle problem
,
polaris 4 wheeler will idel but will die out when you hit the throdle
,
2011 350 grizzly acceleration problems
,
yamaha warrior 350 cuts out while accelerating
,
does a 1991 yamaha warrior have a rev limiter
Click on a term to search our sites for related topics.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
warrior issues country_boi_83 Yamaha YFM350 Raptor/Warrior ('87-Present) 13 11-23-2010 06:35 PM
Warrior Issues... Warrior Rider Yamaha YFM350 Raptor/Warrior ('87-Present) 5 09-13-2010 08:41 AM
Warrior electrical issues/clutch issues warriorchar Yamaha YFM350 Raptor/Warrior ('87-Present) 6 03-14-2010 01:13 PM
Warrior Issues whsewardiv Yamaha YFM350 Raptor/Warrior ('87-Present) 3 06-11-2008 02:08 PM
97 Warrior Issues MoRaptor02 Yamaha YFM350 Raptor/Warrior ('87-Present) 0 07-03-2005 10:56 PM

» Discount Tire
Motosport.com

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 02:19 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.