Common Mechanical Problems of Prairie 650/700 & BF650sra - Kawasaki ATV Forum
Kawasaki Brute Force/Prairie/Bayou Kawasaki's strong and reliable utility ATVs

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 93 Old 07-16-2012, 09:35 AM Thread Starter
Super Moderator
Feedback Score: 4 reviews
 
Mikeyboy_esq's Avatar
 
Join Date: Aug 2003
Location: Conroe, TX
Posts: 9,419
Lightbulb Common Mechanical Problems of Prairie 650/700 & BF650sra

Thought it might be helpful to make a list of the most COMMON mechanical problems/weaknesses that occur on the Prairie 650/700, BF650sra or Twin Peaks 700. This list could be helpful for new owners and/or someone interested in buying one.

I'll start the list (in no particular order)...please post below with any suggestions you have to add to this list.


PRAIRIE COMMON MECHANICAL PROBLEMS:

1) Stock oil seals on engine and front/rear diff tend to leak; Fix: Keep an eye on them and replace as needed (no aftermarket seals available at this time).

2) Stock front strut springs are too soft for fast-paced riding; Fix: replace with aftermarket strut springs.

3) Stock airbox snorkel is too restrictive; Fix: replace with Napa Hose Mod and/or 12 hole mod in airbox lid and increase main carb jets as needed.

4) Stock CDI is very restricted; Fix: replace with aftermarket CDI to eliminate low speed and top speed retarded ignition timing and to increase maximum ignition timing.

5) Stock swingarm bearings tend to wear out prematurely, especially if mud riding often; Fix: Periodically disassemble and apply grease and/or keep an eye on them and replace as necessary.

6) Stock radiator tends to plug up with dirt/mud and cause engine overheating; Fix: Thoroughly clean the radiator fins with a water hose on a frequent basis (don't use a pressure washer), especially needed after a muddy or dusty ride.

7) Stock '02 Prairie 650 carbs had weak choke springs that sometimes caused gasoline to fill the engine while not in use/Newer model Prairies sometimes have sticky choke plungers that cause poor idling/running; Fix: Replace the '02 Prairie choke springs with '03 or later Prairie choke springs and/or turn off petcock valve while not in use, especially before hauling the quad. For newer models, clean and lubricate the choke plungers or replace as necessary.

8) Stock '02 Prairie 650 rear secondary clutch tends to wear out pre-maturely/causes significant decrease in top-speed; Fix: Replace with '03 Prairie 650 or later secondary clutch.

9) Stock actuators for the KEBC and 2wd/4wd tend to fail within a few years; Fix: Some folks remove the KEBC actuator and fork and live without the KEBC function. A few folks have also removed the 2wd/4wd actuator and modified it to function manually via a choke cable set-up. If you don't want to make those changes, you can occasionally disassemble the stock actuators to clean, lubricate and reseal with silicone/gasket maker.

10) Pre-2005 Prairie 650/700 stock rocker arm shafts had mounting bolts on the shaft that could possibly loosen and fall into the top-end of the motor causing catastrophic damage; Fix: Replace with '05 or later model Prairie rocker arm shafts.

11) Fuse box connections may corrode easily; Fix: clean and apply dielectric grease.

12) Stock front diff may break/lock-up, especially if jumping while in 4wd or if one of the oil seals leaks; Fix: Avoid jumping while in 4wd, change the front diff oil as recommended, and keep an eye on the oil seals.

13) Pre-2005 Prairies had a recall on the steering knuckles b/c the original knuckles were prone to breaking; Fix: Contact the local Kaw. dealership to make sure your Prairie 650/700 had the recall work done. You can also look at the knuckle and tell if its been updated or not.

14) 2005 and later Prairies & BF650sra had problems with the stock radiator fan breaker (aka buss connector) which tends to malfunction; Fix: Replace with inline fuse.

15) ANYTHING ELSE ???

2007 KFX 730 (sold)
2004 Twin Peaks 800 (sold)
2003 Prairie 650 (parted out)
2002 Prairie 650 (parted out)

Happy trails...

Last edited by Mikeyboy_esq; 07-18-2012 at 02:18 PM.
Mikeyboy_esq is offline  
Sponsored Links
Advertisement
 
post #2 of 93 Old 07-16-2012, 10:29 AM
Senior Member
Feedback Score: 3 reviews
 
chopermech's Avatar
 
Join Date: Sep 2011
Location: Houma, Louisiana
Posts: 1,657
Carburator issues.
1) fuel leaking into the engine past the rings and into the oil supply. Fix: turn off petcock valve and drain the bowls esp before trailering and traveling.

2) Ethanol plugging up the jets. Fix: don't use Ethanol fuel, and drain the bowls after each ride.

Actuator issues.

3) Mud in actuator motors, causing 2wd 4wd indication back and forth. Fix: Don't use the ATV as a jet ski.

4) 4wd actuator aluminum block severly worn and no longer engauges 4wd. Fix: remove the shaft it rides on, machine tap a screw into it and replace with a nylon roller and a washer to hold the roller on..

Bicycle

Last edited by chopermech; 07-17-2012 at 10:45 AM.
chopermech is offline  
post #3 of 93 Old 07-16-2012, 12:12 PM Thread Starter
Super Moderator
Feedback Score: 4 reviews
 
Mikeyboy_esq's Avatar
 
Join Date: Aug 2003
Location: Conroe, TX
Posts: 9,419
Chopermech,
Thanks for the input! They are all very good. However I would have to say that the ethanol issue is not specific to the Prairie. Rather, that is a common problem with all quads and other gasoline powered vehicles.

2007 KFX 730 (sold)
2004 Twin Peaks 800 (sold)
2003 Prairie 650 (parted out)
2002 Prairie 650 (parted out)

Happy trails...
Mikeyboy_esq is offline  
Sponsored Links
Advertisement
 
post #4 of 93 Old 07-16-2012, 12:49 PM
Senior Member
Feedback Score: 3 reviews
 
chopermech's Avatar
 
Join Date: Sep 2011
Location: Houma, Louisiana
Posts: 1,657
I listed it because it is more specific to the Prairie than the modern bikes due to being Carb'ed

Bicycle
chopermech is offline  
post #5 of 93 Old 07-17-2012, 08:52 AM Thread Starter
Super Moderator
Feedback Score: 4 reviews
 
Mikeyboy_esq's Avatar
 
Join Date: Aug 2003
Location: Conroe, TX
Posts: 9,419
Anyone else have suggestions to add to this list?

Once the list is complete, I'll make this thread a sticky. Thanks.

2007 KFX 730 (sold)
2004 Twin Peaks 800 (sold)
2003 Prairie 650 (parted out)
2002 Prairie 650 (parted out)

Happy trails...
Mikeyboy_esq is offline  
post #6 of 93 Old 07-17-2012, 09:09 AM
Senior Member
Feedback Score: 1 reviews
 
jakedogg's Avatar
 
Join Date: May 2008
Posts: 788
Fuse distribution box wires easily corrode.

You covered everything else I could think of.

Brute Force 650 (SRA)

26 Ripsaws on MSA Torks
Dyna CDI
Custom Skids & Bumper
Muzzy

JD Powersports
jakedogg is offline  
post #7 of 93 Old 07-17-2012, 09:53 AM Thread Starter
Super Moderator
Feedback Score: 4 reviews
 
Mikeyboy_esq's Avatar
 
Join Date: Aug 2003
Location: Conroe, TX
Posts: 9,419
Thanks Jakedogg!

2007 KFX 730 (sold)
2004 Twin Peaks 800 (sold)
2003 Prairie 650 (parted out)
2002 Prairie 650 (parted out)

Happy trails...
Mikeyboy_esq is offline  
post #8 of 93 Old 07-17-2012, 02:11 PM
Senior Member
Feedback Score: 0 reviews
 
Join Date: Jul 2008
Posts: 490
Chokes tend to get sticky causing flooding.lots of cam's have been ruined by this.polish the plungers and lube them to prevent this.

2007 650 SRA
Dynatec CDI
750 flywheel/stator
Dalton O/B spring
12 hole Mod
X over intakes
carbs slides are polished
K&n filter
LRD pipe
And a few other KR tricks I picked up along the way
ITP type 7's
ITP holeshot ATR's for the grass
28 inch Mudzillas for DEEP mud
26 inch zillas for mud racing
stumper is offline  
post #9 of 93 Old 07-17-2012, 02:25 PM Thread Starter
Super Moderator
Feedback Score: 4 reviews
 
Mikeyboy_esq's Avatar
 
Join Date: Aug 2003
Location: Conroe, TX
Posts: 9,419
Stumper, I agree...but I think I have that covered in item #7 on the above list. The '02 P650 had the biggest problem with choke springs due to being too weak on that year model. Thanks for your input!

2007 KFX 730 (sold)
2004 Twin Peaks 800 (sold)
2003 Prairie 650 (parted out)
2002 Prairie 650 (parted out)

Happy trails...
Mikeyboy_esq is offline  
post #10 of 93 Old 07-17-2012, 02:39 PM
Senior Member
Feedback Score: 0 reviews
 
Join Date: Jul 2008
Posts: 490
Quote:
Originally Posted by Mikeyboy_esq View Post
Stumper, I agree...but I think I have that covered in item #7 on the above list. The '02 P650 had the biggest problem with choke springs due to being too weak on that year model. Thanks for your input!
Definetly happens on the newer machines as well. I know of 4 05 and newer 650's that its happened to.

2007 650 SRA
Dynatec CDI
750 flywheel/stator
Dalton O/B spring
12 hole Mod
X over intakes
carbs slides are polished
K&n filter
LRD pipe
And a few other KR tricks I picked up along the way
ITP type 7's
ITP holeshot ATR's for the grass
28 inch Mudzillas for DEEP mud
26 inch zillas for mud racing
stumper is offline  
Reply

  Lower Navigation
Go Back   Kawasaki ATV Forum > Kawasaki ATV Performance / Maintenance / Technical > Kawasaki Brute Force/Prairie/Bayou

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki ATV Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Search tags for this page
03 kawasaki prarie 650 atv front diff lock up stuck on
,
2002 kawasaki prairie 650
,
2003 kawasaki prairie 650 problems
,
2003 kawasaki prairie 650 transmission problems
,
2005 kawasaki prairie 700 problems
,
how to tell if the transmission is bad on a 04 700 kawasaki prairie
,
kawasaki 650 atv any good
,
kawasaki 650 prairie
,
kawasaki 650 prairie problems
,

kawasaki prairie 650

,
kawasaki prairie 650 forum
,
kvf650 clutch problems
,
twin peaks 700 replace head gasket
Click on a term to search our sites for related topics.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Common Mechanical Problems of the KFX 700 Mikeyboy_esq Kawasaki KFX700 V-Force 53 07-01-2015 09:06 PM
looking at a 09 brute force 650i any common problems or concerns? kenton15 Kawasaki Brute Force/Prairie/Bayou 16 07-26-2011 08:01 PM
3 mechanical problems occured on yesterday's trail ride Mikeyboy_esq Kawasaki Brute Force/Prairie/Bayou 8 04-18-2011 06:06 AM
2 STOCK REAR TIRES for Prairie 650/700 or BF650sra Mikeyboy_esq Wanted 1 07-29-2010 10:59 AM
OMF wheels Prairie BF650SRA lowered price skyeryder For Sale 4 06-10-2008 06:13 PM

Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome