This is my first post. I have been reading around this forum and can see so much information that I need to learn. I have just bought (4 weeks ago) a 2007 WR450. The bike has only done 400 miles but hasn't been maintained to the highest of standards during those miles. The bike hasn't really been ridden for 18 months.
I haven't has a chance to ride the bike really since I bought it as I wanted to check things over and sort the air filter first. I have taken off the airbox and filter, cleaned the airbox thoroughly, and bought a new twin air filter. I took the bike out around my garden this evening and found the following.
1. The clutch isn't fully disengaging, when I pull the clutch in the bike still wants to go slighly and this means that unless I keep the revs up it will put load on the engine on tick over and stall the bike.
2. The bike doesn't like to be ridden slowly. When I go into first gear and slowly take a corner at a fast jogging pace without pulling in the cluch the bike almost wants to stall.
3. When I restart it after it has stalled I have to open the throttle literally a fraction as when completely closed it doesn't want to start.
The bike pulls strong once going. The bike seems standard, grey wire still connected, air box still standard, AIS still there. I didn't want to start messing with things yet as I wanted to get a general feel for the bike and ride it a few miles first. I don't know what the best way of sorting the bike is as it clearly has an issue with the clutch and possibly carb.
I don't know whether the 18 months not riding means the clutch just needs to be used for a bit to free up. I don't know if I need to adjust the clutch and how to. I don't know if there is also a problem wiith the carb, TPS, etc. What is the best way forward to get the bike running properly?