if you plan on doing a stroker crank you should do it before a port job. all your port timing will be off if you port for a stock stroke then add a stroker crank. 3mm strokers dont require trechning. what that means is that the crank has a certain amount of throw (distance it requires for the crank to spin a full rotation) when adding a stroker crank you have to make room for this if its a +4 or bigger. what they do is trench or cut the cases to make room for the crank to spin without the bottom of the rod, or any part of teh crank hitting....
it will be tough to get 80, if you ever do. i have a pretty modified banshee and it gets just over 80.
best ways to gain power...porting, bigger carb, pod filter, stroker crank, big bore kit, cut or rechambered head, reeds, and pipe. somethings you have to do to adjust for the other....just as porting you need a bigger carb and pipe to maximize performance. headwork will make it even better.....
doing portwork yourself is risky..there are a lot of factors that make a portjob good or bad, or even workable...different angles, port timing, durations, transfer size....theres a ton of info....thats why most everybody just lets the guys who have done research and r&d to do it the right way. a 2 stroke engine is different from a car engine....seeing as a car has a 4 stroke engine. you will soon discover this.....but hey, its your bike....
you can easily take 2k and have a great quad, dont buy everything new for one....
you can also fin a set of wroks fronts for WAY cheaper than $400..you can buy new for $400.....most used sets run around 200-250.....or you can buy banshee shocks for the front a 400ex or trx250r shock for the rear banshee axle to make it wider in the rear.....2k is a lot to work with....
