Cam chains and cam lobes are made of chocolate give them a good check cam chain tensioner blade and tensioner and give the carbs a good clean usual Jap stuff really...
I used a wire cup brush on an angle grinder to get all the crap and paint/lacquer off my engines and a small wire brush and abrasive papers etc. Be carefull as you go, wear gloves and eye protection as the wire bristles fly off like little darts. You can get rotary wire brush's for your drill...
Check this out on you tube..... http://www.youtube.com/watch?v=YxpQjDQzX7g
What you need to do is locate your idle screw/s and with a screw driver turn them all the way in counting the revolutions make a note 3/4 to 2 1/2 is normal.
Then remove the screw all together being careful not to...
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