motor differance
 

well i am giving up on my 87 johnson 140 looper but i am going to a 1999 johnson 130 ocean runner. will i notice a difference between the 2 slower or faster, MPG, or weight

Pretty simliar engines actually. The 87 is a small bore, and the 88+ is a large bore. The large bore engines tend to be a bit more forgiving, but use a tad more fuel. The small bore engines ran a bit stronger though I thought from the ones I've run, but that small bore engines performance melted more than a few down and is why OMC only made em for 3 years. As for the physical differrences from a 140 to when they went to the 130, I believe all they did was use the smaller 120HP tuner on a 140 powerhead to give better bottom end and emissions(plus it made one less engine to offer for sale).

Ferm, is the 130 an Eagle series or was it the big looper type

The 120-140HP engines were 90 degree loopers, not the 60 degree ones commonly refferred to as teh EAGLE series. They are heavy beasts though weighing in at what a 150 MERC 2.0L V-6 does.

what year did they start building the v4 eagle series? Didn't they keep building the old cross flow 88/90/115 up thur the late 90's? I had a 120 V4 Looper on my Mitchell, it was a torquey motor for sure

The EAGLE style 60 degree V-4's started in 91 I believe, but the older 90 degree cross flow's were available up through 95-96 time frame. The 120-140 is a much larger displacement and heavier built engine. The 120/140 V-4's and 250/300 V-8's were OMC's first large loopers, the V-6's didn't come out until 86, and then in 88 they all got redesigned to the large bore engines.