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I own a 96 mxz 583. I am interested in any quick and easy performance tricks for this sled. Some one had told me something about milling the cylinder head. I understand what they mean but how much do you need to mill it and what is the gain. Because of the age of the machine I do not want to invest alot into the machine if you know what I mean. But any input on machining the head or any low cost performance enhancers would be greatly appreciated.
 

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For your 583 ...great motor ..about 108 hp stock. Mill the head so that you have no less then .055 inch squish band . Check this with solder before you take the head off , then mill what you need to to get close to 55 thou.
 

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front clutch 280 ramps, solid pins , and purple/pink spring. secondary clutch the stock 50 works fine, but you could put in a 52/50/48 with about 14 lbs on tension. and dont forget to stud it too, 192 works well on this sled...
 
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