GasGas Riders Club Forum  

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

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

Thread Tools Display Modes
Old 06-30-2019, 01:19 AM
motopsycho87 motopsycho87 is offline
Senior Member
Join Date: Jun 2013
Location: Suffolk, UK
Posts: 895

I'm guessing they cut it to allow it to open a little further?

I took mine out and ground it to suit the port a couple years ago.

My symptoms were a flat spot down the bottom, like the bike was incredibly lean, but then recovered as the power valve opened. I only really noticed it as I picked up an old exc200, and the bottom end blew me away, so I knew something was wrong. The KTM was set to open mega early, so I knew I needed to get the gasgas to open earlier, and damn did it make a difference.

Bare in mind I'm running 1.5mm base gasket to align the ports, so anything to recover the bottom end is a good thing!

2006 EC300 Enduro - Ignitech CDI - 48/162 NECJ#1, FMF gnarly, FMF shorty, .50 front 5.7 rear

2016 RM-Z450
Reply With Quote

Old 06-30-2019, 02:20 AM is offline
Senior Member
Join Date: Feb 2015
Location: Romania
Posts: 209

I really don't know what to do next.
All is place,nice,clean but no matter what I do,power valve won't open fully.

This is the end of travel...

If I lose a bit the preload on pv will go just a little bit higher on revs but will go too abrupt in power valve.

Soooooo, what I'm thinking to do next, I will loose all spring preload ,if I do that ,the actuator will be loose too much, but,I will bend the actiator arm,to compensates the freeplay.

Fingers crossed
Attached Images
File Type: jpg 20190630_101758.jpg (120.3 KB, 28 views)

Last edited by; 06-30-2019 at 03:34 AM.
Reply With Quote
Old 07-01-2019, 11:51 PM is offline
Senior Member
Join Date: Feb 2015
Location: Romania
Posts: 209

Update: nothing change...
repack final
Clean pv
Clean air filter.


#G needle maby?
I feel that the pv need to open earlier.

Is frustrating to not have some basic measurements,like ktm, 'X' dimension for example.

Last edited by; 07-02-2019 at 01:17 AM.
Reply With Quote
Old 09-01-2019, 03:43 PM
cangy cangy is offline
Join Date: Feb 2013
Location: Isle of Man
Posts: 19
Default My contribution to this awesome Powervalve thread.

I've just sorted my Powervalve issue out, and it's an new issue to the thread I think.

If you've ever had the governor apart, you will have spotted a little aluminium rings that slides up and down the main shaft. Mine had "picked up" and was intermittently sticking it got to the stage where it was hardly moving at all.

I put it down to bad maintenance, not changing the gearbox oil regular. Anyhow, I don't know if they are available for an 03 EC 300, but I polished the marks out and it works a treat now
Reply With Quote
Old 09-02-2019, 06:53 AM
Zman's Avatar
Zman Zman is offline
Platinum Level Site Supporter
Join Date: Apr 2010
Location: Burbs of Chicago
Posts: 1,555

I was able to put a 2011 PV governor into my 2000 300GG. There are several on Ebay, but it sounds like you fixed the problem.
Reply With Quote

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
Low down / tickover issue HELP stevehipkiss Enduro Intake/Carburetion - 2 stroke 9 02-14-2011 09:03 AM
jetting - idle issue. stainlesscycle Enduro Intake/Carburetion - 2 stroke 7 12-30-2009 02:47 AM
clutch issue boostedte37 General Discussions & Announcements 2 11-09-2009 06:58 PM
ec 400 gearbox issue Paul Somerville Enduro Engine 4 stroke (including EFI & Exhaust) 3 09-05-2009 10:17 AM
PowerValve Issue- Take A look at this Picture alexpp Enduro Engine - 2 stroke 13 04-12-2009 12:13 AM

All times are GMT -5. The time now is 12:18 PM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright 2009 -