Rieju & GasGas Legacy Riders Club Forum  

Go Back   Rieju & GasGas Legacy Riders Club Forum > GasGas Enduro Technical Forums > Enduro Engine - 2 stroke

Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


Reply
 
Thread Tools Display Modes
  #1  
Old 02-21-2007, 03:13 PM
thingymijig's Avatar
thingymijig thingymijig is offline
Member
 
Join Date: Feb 2007
Location: London UK
Posts: 10
Question 2002 ec 250 Engine noise

I am a bit new to the enduro bikes and two strokes, I just picked up a 2002 ec 250 and i have noticed a rattlle from the engine, and it seems to have flat spots Any Ideas ? could it need new piston and rings ?
Also I need a manual for servicing and parts, I cant find a down load. the gas gas spain site doesnt do one for the 2002 model !


Reply With Quote


  #2  
Old 02-21-2007, 06:43 PM
REVERUP's Avatar
REVERUP REVERUP is offline
Gold Level Site Supporter
 
Join Date: Aug 2006
Location: Bonney Lake, Washington USA
Posts: 1,269
Default

Hard to say without opening it up. If I just got it and didn't know its history I would open it up and inspect it and at least throw a new set of rings on it if everything looked good inside. It very well could be, just your powervalve rattling, thats pretty common, and won't hurt anything. As far as the flat spots maybe a jetting issue?
Reply With Quote
  #3  
Old 02-21-2007, 07:34 PM
Brian VT Brian VT is offline
Senior Member
 
Join Date: Jul 2006
Location: Vermont, USA
Posts: 827
Default

I bet the rattling you're hearing is the chain slapping on the plastic guard just behind the front sprocket. It's made from very hard plastic. It sounds like the noise is coming from the motor.
Reply With Quote
  #4  
Old 02-21-2007, 11:27 PM
thingymijig's Avatar
thingymijig thingymijig is offline
Member
 
Join Date: Feb 2007
Location: London UK
Posts: 10
Default

Thanks for your sdvice, I will have a look, and Idea on a pdf nanual for the 2002 ec250 ?
Reply With Quote
  #5  
Old 02-21-2007, 11:53 PM
webmaster's Avatar
webmaster webmaster is offline
Administrator
 
Join Date: Jul 2006
Location: Portland, Oregon, U.S.A.
Posts: 1,788
Default

I scanned in the 2002 owners manual a few years back for someone who didn't receive one for his bike. It is labeled "service manual" - but there wasn't a service manual available for the bikes until recently. You can find it here...

www.gasgasrider.org/gg_ec2002_man.pdf

You can find a parts fiche for your bike on-line at the www.gofasters.com.

I was shying away from pulling all the manuals onto this site, since most exist elsewhere. But to provide for one-stop shopping, I will pull them all over to the manuals section of this website.

jeff
webmaster
gasgas riders club

p.s. The flat spot might be the stock jetting - I found my 2001 to have a horrible transition off-idle to mid. Since my best friend sells jetting kits for the bike - I will leave it to others to recommend a solution for you. If you have something like a N1EC or N1ED needle in there - start looking for something else... Another vote here for the chain slap or power valve for your rattling - does it happen as you back off the throttle? Can you provide more detail on when you hear it (rpm, accellerating, decellerating etc.)
Reply With Quote
  #6  
Old 02-22-2007, 05:08 AM
thingymijig's Avatar
thingymijig thingymijig is offline
Member
 
Join Date: Feb 2007
Location: London UK
Posts: 10
Thumbs up problem solved

Thanx guys, it was the chain bit making the noise, thanx for the manual down load, I will investigate the needles, it may be this causing the problem.
Great site
Reply With Quote
Reply



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


Similar Threads
Thread Thread Starter Forum Replies Last Post
EC300 engine noise fittal Enduro Engine - 2 stroke 6 11-03-2010 09:42 AM
Engine noise roostafish General Discussions & Announcements 11 11-24-2009 12:01 PM
Unidentified engine/gearbox noise PBWR450 Enduro Engine - 2 stroke 3 03-09-2009 09:04 PM
2002 engine parts list sootysan Enduro Engine - 2 stroke 1 03-28-2008 06:18 PM




All times are GMT -5. The time now is 07:39 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright 2009 - GasGasRider.org