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 10-06-2009, 11:52 AM
kendunn kendunn is offline
Senior Member
 
Join Date: May 2009
Location: SE KY USA
Posts: 232
Default Crankcase vent blocked

I just bought a lightly used 03 EC250 and have been having trouble fouling plugs. Changed reeds, went through carb, etc and nothing. Someone told me to check the left cylinder/crank/power valve vent to make sure it wasn't plugged and found it had been intentionally plugged off. Anyone know why someone would do this? Could this indeed foul a plug (very erratic fouling, fine for a couple of rides then bam, fouls 2 or 3)? I am of course going to fix this, but it takes a while sometimes for it to show it, so it may be a couple of rides to rear its ugly head. I thought about a crank seal, but the drain plug for the cylinder is clean, and it doesn't seem to use any oil.


__________________
2006 EC300, 2000 XR650R, 2003 EC250, 2001 EC200 (OK, the last two are really my sons).
Reply With Quote


  #2  
Old 10-06-2009, 12:08 PM
jostby jostby is offline
Senior Member
 
Join Date: Oct 2006
Location: Spokane, WA
Posts: 748
Default

From what I remember some bikes came with the left side power valve cover drain either blocked off or not drilled completely. Other years they actually zip-tied the drain hose to make a less permanent blockage. Seems it had to do with California emissions (oil dripping on the ground). Your power valve drain shouldn't be causing your plug fouling issues though. I had my bike for a year and probably went through 25 spark plugs before I found online help that led me to the LTR jet kit. I don't think it is being made any more but check the jetting sticky-post and start there. If the previous owner never opened up the power valve drain he probably never did any jetting corrections either.
btw, there is no "crank case" vent. There is a transmission vent coming off of the right side pv cover and also a hole under the engine case that vents/drains the flywheel housing. The left side pv cover vent only drains exhaust spooge.
__________________
jeff

'00 XC250 (mine)
LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion.
'04 EC250 (the kids)
(he can do his own mods haha!)
Reply With Quote
  #3  
Old 10-06-2009, 12:37 PM
kendunn kendunn is offline
Senior Member
 
Join Date: May 2009
Location: SE KY USA
Posts: 232
Default

They did have the LTR needle in there, so I am guessing they had the entire kit. It (vent hose) was zipped tied off, I guess a CA thing like you said. I don't know whats causing the fouling, its very erratic running, will do fine for a while, then foul. I don't think that would be jetting unless its the float sticking maybe. I guess I may have to break down and check the seal, but at gofaster they didn't seem to think that was it. They are thinking float needle, so I will be turning off the gas when I stop to see.
__________________
2006 EC300, 2000 XR650R, 2003 EC250, 2001 EC200 (OK, the last two are really my sons).
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
white gunk coming from crankcase breather tube Crankin04 Enduro Engine 4 stroke (including EFI & Exhaust) 22 07-18-2010 09:58 AM
Crankcase Seal Removal gasser Enduro Engine - 2 stroke 4 10-06-2009 12:47 PM
Cylinder to Crankcase Gasket order? Skele Enduro Engine - 2 stroke 1 08-16-2009 04:40 AM
PV vent hose......... Help joey11 Enduro Engine - 2 stroke 2 06-16-2008 12:21 PM
Crankcase steam hose Alan Enduro Engine 4 stroke (including EFI & Exhaust) 8 07-06-2007 10:15 PM




All times are GMT -5. The time now is 06:45 PM.


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