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 09-12-2018, 05:03 AM
eralha eralha is offline
Senior Member
 
Join Date: Sep 2018
Posts: 103
Post Gasgas EC 300 2018 power valve adjustment

Hi guys,

I have a gasgas ec300 2018, and i have seen this video regarding power valve adjustment: https://www.youtube.com/watch?v=lu3T-ctnzKY

I want to ask some questions because i didn?t understand all the info.

Q1: if i turn the screw all the way to the right is that the standart position? (full power?)

Q2: 1.5 turns to the left(preload in the valve), the bike will rev slower? (less power sooner)

edit Q3: does some one know what is the factory setting?

thanks in advance.



Last edited by eralha; 09-12-2018 at 06:28 AM.
Reply With Quote


  #2  
Old 09-12-2018, 05:45 AM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,994
Default

All the dolly screw does is preload tension onto the spring that acts on the governor.

Turning the screw right adds more preload, meaning more centrifugal force is required to start opening the powervalve. Valve opens later.

Opposite the other way.
Reply With Quote
  #3  
Old 09-12-2018, 06:12 AM
eralha eralha is offline
Senior Member
 
Join Date: Sep 2018
Posts: 103
Default

Quote:
Originally Posted by Jakobi View Post
All the dolly screw does is preload tension onto the spring that acts on the governor.

Turning the screw right adds more preload, meaning more centrifugal force is required to start opening the powervalve. Valve opens later.

Opposite the other way.
Does the screw have a max turn both sides? without breaking anything.

Sory but i'm afraid to break something.

regards.
Reply With Quote
  #4  
Old 09-12-2018, 06:29 AM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,994
Default

I don't know if you can back the screw right out or not. I would count the turns in until it lightly seats. and that will be your tames power.
Reply With Quote
  #5  
Old 09-12-2018, 01:49 PM
eralha eralha is offline
Senior Member
 
Join Date: Sep 2018
Posts: 103
Default

Quote:
Originally Posted by Jakobi View Post
I don't know if you can back the screw right out or not. I would count the turns in until it lightly seats. and that will be your tames power.
Thanks for the info, it helped me understand the procedure.

I turned the bolt all to the right and did a test run, no power at all.

from that point i did 3 turns to the left, it has a good amount of power in that setting.

Thanks for the help.
Reply With Quote
  #6  
Old 09-19-2018, 10:55 AM
Doc Brown Doc Brown is offline
Senior Member
 
Join Date: Dec 2017
Location: Austria, Europe
Posts: 586
Default

The standard setting is 2 turns out.
3 turns out makes it lively, revving quick, but you will loose torque.

The procedure shown in the video is wrong in my opinion, you should hold the adjuster with an allen key when tightening the lock nut. Just as it is described in your owners manual...
Reply With Quote
  #7  
Old 11-14-2018, 01:48 PM
Dingo_ed Dingo_ed is offline
Member
 
Join Date: Dec 2017
Posts: 14
Default

I didn't hold the allen, so locking turned pin it just a tad. I was going for 2.5 turns out, maybe more like 2.25 turns or so over all said and done. Noticed a change not extreme.

What setting do you guys like and why?
Reply With Quote
  #8  
Old 11-14-2018, 07:45 PM
mrquick mrquick is offline
Member
 
Join Date: Oct 2018
Posts: 31
Default

One important thing you must check when adjusting the power valve is that this rod connector MUST slip on freely, if it needs any force then adjust it so it slips on it makes a massive difference to to power valve...
Share Embed Email BBCode
WhatsApp Video 2018-11-14 at 12.16.31 PM by [url=https://www.flickr.com/photos/143285930@N08/]
Reply With Quote
  #9  
Old 11-15-2018, 04:11 AM
eralha eralha is offline
Senior Member
 
Join Date: Sep 2018
Posts: 103
Default

Quote:
Originally Posted by Dingo_ed View Post
I didn't hold the allen, so locking turned pin it just a tad. I was going for 2.5 turns out, maybe more like 2.25 turns or so over all said and done. Noticed a change not extreme.

What setting do you guys like and why?
I like to run it at 2 turns out, smooth controllable power, good bottom grunt.
I do all most single track riding, some hill climbs and some slow trails. So for my riding style and tracks it works good, if i ever go to a motocross track i will put it at 3 turns out, to have more explosive power, i have run it like this and found the it lacks bottom grunt on the trails.
Reply With Quote
  #10  
Old 11-15-2018, 01:30 PM
Dingo_ed Dingo_ed is offline
Member
 
Join Date: Dec 2017
Posts: 14
Default

Thanks to all for the heads up.

Good to know, I'll check the rod.

I'm going back to 2 turns for my next ride. It must be at a full 2.5 turns, seems to rocket out of corners, but wants to loop out in steep rock canyon wall climbs, using more clutch and revs to make it jump over stuff last ride, not that tractor feel like it had before.

I do like the kick for track type stuff, nice to know can change in in a matter of minutes.
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
2018 ec 300 power valve issue Sterlo300 Enduro Engine - 2 stroke 8 10-27-2018 08:46 AM
2018 XC 300 Power Valve adjustment Islander Enduro Engine - 2 stroke 3 07-11-2018 09:44 AM
Power valve adjustment on 15 engine Adam500 Enduro Engine - 2 stroke 3 03-24-2017 07:14 PM
GasGas (all years) exhaust valve adjustment Leo Enduro Engine - 2 stroke 5 01-31-2016 12:24 PM
Power Valve Adjustment Skele Enduro Engine - 2 stroke 2 08-17-2009 08:31 AM




All times are GMT -5. The time now is 09:49 AM.


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