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Old 04-03-2012
jbm jbm is offline
dbw Pro
Join Date: Nov 2008
Posts: 20
Have not had them close up on my wr250f but have had the problem on a previous bike. With no electric start the bike gets harder to start due to the loss of compression, I used to also notice soot on the rear gaurd from slight oil consumption.

They are not hard to check. Did mine yesterday and I am no mechanic. If you have the manual follow that, although there is no need to remove the radiator. If you can change a spark plug you should be able to check them. Adjusting them is a different issue as you need to play with the timing and be careful with tightening the cam caps.

No doubt in the Honda forum you will find more info on the symptoms of
valve issues
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