Used to be that I guy told me he had a 90 hp inline, and made it a 115 by changing jets in the carbs.<br /><br />So, if he wasn't blowing smoke up my,, well you know.. <br /><br />I was told when we ordered our NEW XR4 in 88 that it was the same powerhead as a 175/200. 2.4 L I guess, and it...