[THEFERMANATOR]

Originally Posted by wellcraftv20step

The guy I recently took it to seems to have it running pretty well now, he changed the timer base and that seems to have solved the intermittent lack of power problem I was having . I took it out yesterday and it ran very well. only thing was the mechanic for some reason removed the shift cable anchoring bolt where it mounts under the cowel and when I pulled into the boat ramp I had no reverse, that was a lot of fun !! I am however very interested in finding out about that conversion.

I had to swap the carbs over to a set of 86(you can also run 87's, but you have to be careful as there are 2 different sets for 87), and drop the timing back to 18 degrees. Since the 85 140 uses a unique reed cage, it fows slightly different, and you will probably have to rejet accordingly. The cheapest thing to do is to set the timing at 18 and run the small carbs. It drops it back to a 120 instead of 140, but the lower timing is alot easier on the engine. Most shops set the timing at 18 because ONLY the 85 140 ran the extra timing(I don't think the 300 for 85 ran more than 18), and many manuals don't list it.