Relic
Active Member
Re-posting for anyone who's interested. 
Page 1:
Here's a little tutorial on valve clearance check and adjustment for a 2007 KLX250. This is not really a job for a beginner, but if you have faith in yourself, go for it. Not all bikes are like this and personally I think this has to be the worst system for valve adjustment. Invest in a good service manual - preferably the one from dealer. Don't rely on me because I may have missed something. My conscience is now clear.
OK, first off, besides basic tools your gonna need a torque wrench (something that can do 8.5 ft-lbs) metric feeler gauges, and a good micrometer to do the shim replacement. If just doing clearance check, basic tools and feelers will do.
A note on feeler gauges: I bought myself a set that were metric only. I don't like using these sets with both metric and standard. They are usually standard sizes with metric conversions so you don't get exact metric numbers. But, that's just my preference.
First give the bike a good wash to remove all the dirt accumulated. You may notice that I never gave a good wash, but that's my choice. I did wipe down all critical areas and gave a good blast with air.
Next, remove seat, side guards, and fuel tank. In the next pic is what you'll see. I also removed wiring bracket (yellow arrow) and pulled the wires to one side. I also remove the ignition coil (red arrow) to have more room for cover removal.
Once thats taken care of things look a little better
In the pic above you can also see the 3 bolts holding the cover down. Remove these and carefully remove the cover. Careful with the gasket. You will now see two camshafts. Naturally, front is exhaust and rear is intake.
Page 1:
Here's a little tutorial on valve clearance check and adjustment for a 2007 KLX250. This is not really a job for a beginner, but if you have faith in yourself, go for it. Not all bikes are like this and personally I think this has to be the worst system for valve adjustment. Invest in a good service manual - preferably the one from dealer. Don't rely on me because I may have missed something. My conscience is now clear.
OK, first off, besides basic tools your gonna need a torque wrench (something that can do 8.5 ft-lbs) metric feeler gauges, and a good micrometer to do the shim replacement. If just doing clearance check, basic tools and feelers will do.
A note on feeler gauges: I bought myself a set that were metric only. I don't like using these sets with both metric and standard. They are usually standard sizes with metric conversions so you don't get exact metric numbers. But, that's just my preference.
First give the bike a good wash to remove all the dirt accumulated. You may notice that I never gave a good wash, but that's my choice. I did wipe down all critical areas and gave a good blast with air.
Next, remove seat, side guards, and fuel tank. In the next pic is what you'll see. I also removed wiring bracket (yellow arrow) and pulled the wires to one side. I also remove the ignition coil (red arrow) to have more room for cover removal.
Once thats taken care of things look a little better
In the pic above you can also see the 3 bolts holding the cover down. Remove these and carefully remove the cover. Careful with the gasket. You will now see two camshafts. Naturally, front is exhaust and rear is intake.
