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Yamaha MX & Off-Road Dirt Bikes
How bad must you melt a piston before it has to be replaced?
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[QUOTE="ws6transam, post: 1420542, member: 65064"] Thanks Joe, Forward Motion already modified the cylinder head and he ported the cylinder. I haven't really had many issues with pinging until that fateful 97 degree day. I must say, ever since Eric did his thing to the cylinder, and Garry from EFM Autoclutch custom CNC'ed that centrifugal clutch basket, this WR500 has been a dream for slow-poking in the woods and also ripping up the fire trails. It never fouls a plug , starts on the first kick, and you also can't stall it anymore! It also weighs 262 pounds when fueled up- A bit heavy for a two stroke but probably right in the ballpark with modern 4T machines of comparable power. Thanks for all the suggestions everyone, -Dan [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
How bad must you melt a piston before it has to be replaced?
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