old hammer

[halestorm48]

I found an old yamaha 2.6 litre race motor that is red and white and was wondering if anyone had any info on this little motor. All I know is that it was on a gambler and it hasn't been on a boat in a few years but it was running when it was taken off. Would this motor be comparable to a mercury 2.5 racing motor. Oh yeah it has the boxy style cowl and two big exaust ports above the cav plate if that helps

Thanks