Rieju & GasGas Legacy Riders Club Forum

Rieju & GasGas Legacy Riders Club Forum (http://www.gasgasrider.org/forum/index.php)
-   Enduro Engine - 2 stroke (http://www.gasgasrider.org/forum/forumdisplay.php?f=37)
-   -   Power valves after 920 miles (http://www.gasgasrider.org/forum/showthread.php?t=20876)

gasgasman 02-03-2016 09:39 PM

Power valves after 920 miles
 
My 2015 GG 250 now has 920 miles on it.
I decided to do a refresh on the top end. I've never had it apart.
Ran a compression test, came out to 140psi.

The power valves were really clean, a testament to how clean the SmartCarb operates. The left side power valve chamber was dry also. No spooge build up.

I ran Amzoil 50:1 for a while and have now switched to LUCAS oil.

Flapper had little carbon build up.
http://i79.photobucket.com/albums/j1...psg9ejs9rm.jpg

http://i79.photobucket.com/albums/j1...psdttt6bms.jpg

http://i79.photobucket.com/albums/j1...psz8itc4ak.jpg

Back side of flapper.
http://i79.photobucket.com/albums/j1...pscgmqkjgm.jpg
http://i79.photobucket.com/albums/j1...pshccpc76q.jpg

Jakobi 02-03-2016 11:14 PM

Any pictures of the piston Girard?

Rick 02-03-2016 11:56 PM

Impressive to say the least. Pretty toasty, I bet your plug looks just as golden!!!

Leo 02-04-2016 06:50 AM

The flapper is different from mine 2011. Your is "hollow" mine is solid.
(Just for future record)

Zman 02-04-2016 01:16 PM

Knock off the carbon and get her back in the dirt ASAP!

gasgasman 02-04-2016 10:04 PM

Quote:

Originally Posted by Leo (Post 163121)
The flapper is different from mine 2011. Your is "hollow" mine is solid.
(Just for future record)

Yup. Also, the slot in the valve where the rod goes through has a crescent shape.

When I took the power valve actuator cover off, I thought the actuator was on backwards. The bell crank was facing to the front. Instead of the actuator rod moving up (pre '15) to open the flapper, the rod pulls down on the '15.

gasgasman 02-04-2016 10:12 PM

Quote:

Originally Posted by Jakobi (Post 163102)
Any pictures of the piston Girard?

http://i79.photobucket.com/albums/j1...psbzeaixsp.jpg

http://i79.photobucket.com/albums/j1...pso8ajpif6.jpg

http://i79.photobucket.com/albums/j1...pslyfbyspc.jpg

Jakobi 02-04-2016 11:46 PM

Verr nice!

Also, just curious. Are you still using your original 38mm billet? and have you had any revisions or updates made to the metering rod/check valves/float assembly?

Simmo737 02-05-2016 01:26 AM

Looks like disassembly scuff and that's it, another 50 hrs at least on that piston.

3beejay3 02-05-2016 08:55 AM

Did you put the Smart Carb on when the bike was new?


All times are GMT -5. The time now is 10:15 AM.

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