j e hutchison1970
Cadet
- Joined
- Jul 26, 2002
- Messages
- 7
o.k. I have a 1970 115 hp merc it was setting for 8 months when i bought it.I first had new throttle and shift cables installed, then i took the boat (17.5 ft tri-hull) out and it had lots of power and a top speed of 42 mph @ 5500 rpms. since then i took the boat back out and i lost lots of bottom end power and 7 mph on the top end it only tacks out at 5000 rpm. i have installed new plugs, new fuel filter, still nothing. anyone with advise?