After finding a mouse nest sucked/wedged into one of my throttle bodys, I will send the sled(98 ZR 600 EFI) to the dealer. My dealer would like to clean the inside of the motor(with 6700 miles on it). NOW HERE IS THE QUESTION: With this kind of mileage will it need a new crank and new pistons/cyl.? Is this the time to have my dealer install the Black Magic 678 stealth kit? Or should I just due a pipe, chip, and clutch combo? If just the combo should I use Black Magic or D+D? Can my engine handle this kind of performance?

I love my sled I can't part with it!
ANY AND ALL INPUT INCLUDING ANY PRICES FROM YOUR EXPERIENCE WOULD BE A GREAT HELP.
Thanks

well w/ 8k on it i'd say it needs a set of pistons for sure. crank bearings when the cases are split they can check them for wear. as for the 680 it's a good small budget big bore, i ran one in my mod for a couple years. i wouldn't waist the money on the B/M kit you can buy the pistons from wiseco and have the jugs punched out and head recut for alot less. d&d or slp twins work pretty good with that bore. if you go that route and spend the money you should have the crank rebuilt just to be safe.

Why take it to a dealer their ain't much to it. 2or 3 hours.