Before I shoot this off to a mechanic, I was hoping for a little insite on these motors...
1997 Johnson Fast Strike 150, J150GLEUE ? It's on a Ranger R82 Sport that I bought from my Dad. He's had it maintained at a shop in Llano (?)....guy by the name of Blake...in other words, it's been taken care of.
The issue is WOT, this boat reaches 4800 RPM at 50 flat, just me, a trolling motor and two power poles....motor is hung on a 6" jack plate, wanna say about 3". Spinning a Renegade 23 4 blade.
This boat has never ran over 50. Compression is within specs, new plugs...I tried a Tempest 23p, but the prop blows out when the bow lifts and won't plane. Planes great with the 4 blade, but again, 4800 at 50...
Any ideas what might be happening?
Thanks