2003 sportsman 700 twin engine noise? - Polaris ATV Forum
Polaris Sportsman Discussions for the Polaris Sportsman 90, 300, 355, 400, 450, 500, 550, 600, 700, 800, 850

LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 05-24-2013, 04:46 AM Thread Starter
Junior Member
Mudder96's Avatar
Join Date: Mar 2013
Posts: 8
Thumbs down 2003 sportsman 700 twin engine noise?

Hey guys I have a 2003 sportsman 700 twin that has started to have an engine Noise the noise is louder at an ideal but when you have the bike in neutral and rev it the noise gets quiter as though whatever is ticking is moving faster then before to lower the noise? I've done loads of maintained to this bike just not engine work yet.. Aha talked to my grandfather who used to be a mech in the automotive industry, and he seems to think timming chain is loose or worn out to allow it to slap against the caseing? I have not got my dealers option on this matter yet, hope not to have to as that may lead to more money having to take it in.. Anyway I am just fishing for more ideas before I get into doing the wrong things or looking in the complete wrong area. The noiseis louder when standing on the right hand side of the bike, the weird part is I just had this bike down for mantiance ( replaced all bushings and did an oil change plus filter, did a tests run and now this happend. Any help would be appreciated as its riding season and once again the polaris is down.aha thanks guys.
Mudder96 is offline  
Sponsored Links
post #2 of 5 (permalink) Old 05-24-2013, 07:28 AM
Extreme ATV Enthusiast
pgjeepster's Avatar
Join Date: Dec 2011
Location: Prince George
Posts: 423
Check for piston scrub; the rings rubbing off the cylinder wall.

2011 Sportsman 500HO.Front & rear bumpers, 2-up box.winch,26" pxt tires,windshield,gun boot,plow, heated grips & thumb, heated seat.
2003 Sportsman 700 twin.Front & rear bumpers,front spring adjuster,26" mudlites, 2-up box, HID lights,3500 lb. winch, gun rack,plow,hand guards.
pgjeepster is offline  
post #3 of 5 (permalink) Old 05-24-2013, 09:15 AM
ATV Enthusiast
bailbud's Avatar
Join Date: Aug 2010
Location: Canyon BC
Posts: 37
mine was the same kind of noise and was the silent chain in trans ,pull the plug look for wear on plug .
bailbud is offline  
Sponsored Links
post #4 of 5 (permalink) Old 05-24-2013, 05:50 PM
Polaris ATV Legend
Diesel man 03's Avatar
Join Date: Sep 2010
Location: Wisconsin
Posts: 1,808
bailbud, by checking the plug for wear, what exactly are you looking for?
Diesel man 03 is offline  
post #5 of 5 (permalink) Old 05-29-2013, 08:59 AM
ATV Enthusiast
bailbud's Avatar
Join Date: Aug 2010
Location: Canyon BC
Posts: 37
wear on the inside and when u put a finger in the hole u can feel the chain slap or excess play. u should be able to see scuff marks on plug
bailbud is offline  

  Lower Navigation
Go Back   Polaris ATV Forum > Polaris Model Specific Discussions > Polaris Sportsman

Quick Reply

Register Now

In order to be able to post messages on the Polaris 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


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

Email Address:


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.

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
2003 Sportsman 700 twin AWD ? OldGeezer50 Polaris Sportsman 8 01-28-2013 05:52 AM
2003 700 Twin engine/belt noise Anderson4x4 Polaris Sportsman 1 03-04-2012 06:48 PM
2003 600 sportsman twin parker07 ATV General Discussion 1 05-31-2011 06:51 PM
2003 Sportsman 700 twin redneckjwb ATV Repair and Maintenance 4 11-26-2010 11:24 AM
2003 sportsman 700 twin erieritz ATV New Members 3 09-21-2010 05:04 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