anyone ever used or heard of these clutches and agree or not with these facts of the added friction plate in #4 ????.................
YAMAHA BLASTER 240 HEAVY DUTY CLUTCH KIT!!!:eBay Motors (item 290372796998 end time Dec-21-09 13:38:05 PST)
1. We use cork style friction plates with a metallic base. We have tried all the different friction compounds available and these were the most durable. Kevlar type frictions had good wear properties but glazed over very quickly and started slipping compared to cork.
2. The steel plates are the most important component in the strength and durability of a good quality clutch kit. Our steels are smooth on both sides, most clutch kits have “dimpled” or “textured” steel plates. THESE STEEL PLATES DO NOT LAST AS LONG AND DO NOT HOLD AS MUCH HORSEPOWER AS SMOOTH PLATES. "Dimples" are concave in shape and reduce surface material and contact area causing the clutch to slip easier. We have done tests where we had quads that had a slipping clutch (the clutch that was in it was new). We took the “dimpled” steels out and replaced them with smooth steels and the clutch stopped slipping.
3. Springs are equally important, we use a spring that is 10%-15% stiffer than stock. This helps with pressure on the friction and steel plates limiting clutch slippage.
4. For the Blaster we have added an extra full size friction plate. This gives you the opprtunity to remove and replace the larger I.D. friction plate that fits over the steel ring and wave washer and use a full size friction. This will give you more clutch contact surface area reducing slippage and capable of handling higher H.P. This kit works well with 240 big bore kits that can more than double the stock horsepower. The purpose of the wave washer is to cushion the clutch engagement, removing it has been a common practice for many years and will not affect the perfromance of the clutch. We still include the standard larger I.D. friction incase you want to run it. This is the only clutch kit on the market that offers you this option
YAMAHA BLASTER 240 HEAVY DUTY CLUTCH KIT!!!:eBay Motors (item 290372796998 end time Dec-21-09 13:38:05 PST)
1. We use cork style friction plates with a metallic base. We have tried all the different friction compounds available and these were the most durable. Kevlar type frictions had good wear properties but glazed over very quickly and started slipping compared to cork.
2. The steel plates are the most important component in the strength and durability of a good quality clutch kit. Our steels are smooth on both sides, most clutch kits have “dimpled” or “textured” steel plates. THESE STEEL PLATES DO NOT LAST AS LONG AND DO NOT HOLD AS MUCH HORSEPOWER AS SMOOTH PLATES. "Dimples" are concave in shape and reduce surface material and contact area causing the clutch to slip easier. We have done tests where we had quads that had a slipping clutch (the clutch that was in it was new). We took the “dimpled” steels out and replaced them with smooth steels and the clutch stopped slipping.
3. Springs are equally important, we use a spring that is 10%-15% stiffer than stock. This helps with pressure on the friction and steel plates limiting clutch slippage.
4. For the Blaster we have added an extra full size friction plate. This gives you the opprtunity to remove and replace the larger I.D. friction plate that fits over the steel ring and wave washer and use a full size friction. This will give you more clutch contact surface area reducing slippage and capable of handling higher H.P. This kit works well with 240 big bore kits that can more than double the stock horsepower. The purpose of the wave washer is to cushion the clutch engagement, removing it has been a common practice for many years and will not affect the perfromance of the clutch. We still include the standard larger I.D. friction incase you want to run it. This is the only clutch kit on the market that offers you this option
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