Now I've ridden my -12 WR a few times. Got it in november, so all my rides have been in -or near- freezing temps. The bike is a Euro spec with Yamaha Competition Kit monted. That consists of an alu YZ-style muffler and a header slightly bigger in bore (about 41mm od as opposed to stock 39mm od). ECU is stock.
Have bought the Diagnostic tool and CO is bumped up from 0 to 15. It really gets alot smoother in the woods at low revs after that. Starts a bit easier aswell. But, since I do alot of riding in cold weather and at higher speed, it is really overcooling more or less all the time.
Since I now have the Diagnostic tool, I don't have to guess anymore. So today I mounted the DiagTool on the handlebar and went for a ride. Here's the result.
Outside temp about 3 degC.
Cruising on paved road, about 85km/h:
- Left radiator blocked, 40degC
- Both rads unblocked, 30degC
Enduro riding, single track in woods, average speed about 25km/h:
- Left radiator blocked, 65degC
- Both rads unblocked, 50degC
That temp is not good for the engine. I guess it will affect engine lifespan. The normal car engine runs at about 90 to 100degC.
So, my solution is this; I bought a used KTM thermostat, and somehow I'm gonna put it on my bike. It's really tight for space, but hopefully it will work.
btw, isn't it possible to upload pics? Can I add pics from my Google account?
Edited by turbomart, March 22, 2015 - 05:54 AM.