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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Rm250
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[QUOTE="TM400Rider, post: 643408, member: 45526"] "Too much preload on the spring. On the left side of the cylinder is a dial that controls the spring preload for the exhaust valve system. The preload doesn't have that great of an affect on the engine's powerband, but too much preload will prevent the valves from opening, which causes a lack of top-end power." I read this on on another site and I have a 1991 RM 250 and I need to know how to set the pre load on the spring they are talking about. Any help would be appreciated. Does anyone know if you will see a noticeable performance gain out of adjusting this? Any other suggestions on how to get more power out of a 91 RM 250 cheap? Thanks a lot [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Rm250
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