Hi guys, im intending to bore up to 444cc.most likely to go with the stock YZ426 stuffs , bore the cylinder to fit a 97mm piston. can i know how many of you guys have actually done it, esp with the 98 models. 99 and 00 models may join in too. Pros and cons , against high revving and overheating issues. i would like to have the firm reliability after the big bore. and to know the feelings the happy big boreRS, haha . please share more experience with me, like fixing it up , maintaining etc etc. what ever things to make me go for it. Thanks guys ! cheers !