A guy wants to do some swapping towards my truck for sale. he is offering cash plus this machine, a 2004 Suzuki quadsport 250. Bought it new and was ridden for about 2 seasons, then not for the last 2 years or so. Says the carbs need cleaning, it runs but not real good. Has fairly new holeshot tires (all 4) and aftermarket front wheels plus suzuki front and rear bumpers. Looks clean, its yellow. Thoughts on this machine? Whats it worth?