I got a 510 lemon but am determined to somehow get her either replaced or fixed...the throttle stop had 2b chopped but what I for quite some time thought was just a matter of finding the appropriate jetting settings turned out 2b far more serious...anyone else out there have a coolant system/overheating problem to go along /exascerbate the constant stalling...I mean with the throttle cranked it is a fearsome machine but it wants to stall immediately after a jump or at the crest of a steep hillclimb or even on a steep downhill....and won´t hold an idle with the kickstand down.....Is this a bad run of kehiin carbs? Did the factory husky crew just eat bad breakfast stramboli the day she was made???? And to kickstart it - forget it - take along an extra battery... I´m dissapointed but dedicated.....a husky masochist!