Apologies if this is answered somewhere, but I could not find anything after searching.<br /><br />I am a newbie browsing boat ads and when i see the hours of the engine posted, I don't know how to evaluate it. Looking at a boat with twin Johnson 150's; 2001...350 hours each. Is that high? Low? Are there web resources that can help? I tried the bombardier web site but could not find anything.<br /><br />If 350 hours is high, how do you factor that in to the price? NADA has low and high values...do those take it into account...i.e. if the hours are in the high end i then take the low end of the price range from NADA?<br /><br />Lastly, how well can one go by the NADA posted values?<br /><br />I appreciate any help or advice.<br /><br />Ocelot1
<br /><br />350 hours is quite low, Ocelot.<br /><br />Average life for an outboard is said to be about 1500 hours, but well maintained engines often last twice that before anything major is required.<br /><br />You need to have the compression checked on both engines. All 6 cylinders on each engine should compress over 100psi and be withing 10% of each other.<br /><br />If possible, get an on-the-water demo.<br /><br />Others will have other suggestions to offer.<br /><br />Good luck. 