I only paid $200.00 for this log splitter. Got my money out of it so far. So I have to put another $200 - 400 still cheaper and COOLER than an wimpy motor. I have used it for 2 years and this will go threw anything you put in front of it. The pump, cylinder, valve are worth that. If I put an 8 or 10 HP motor no one will want to talk about it then. I get people that stop and want to see it run. It isn't that heavy my ATV pulls it no problem, when I pull it behind my truck you don't even know it is there. So far for fixing the motor the radiator needed to be fixed & flushed ($80.00) which I think was the problem, Timing chain Holder tool ($6.00) Water Pump ($56.28) L20B HEAD GASKET SET ($40.00). $182.28 so far. Need to have the carb rebuilt any suggestions? Thank you to all that have given helpful advise to fixing this motor.