OK, folks...as some of you know I have been dealing with motor issues with this motor for a while. However, finally have it running beautifully after replacing all the fuel hoses, fuel selector valve, and bulb; unfortunately, I am only getting it to run around 47mph and 4300rpm. The motor has a 4-blade prop of unknown origins, so it has been suggested that I try a different prop and see if that makes a difference. After doing a little research, I settled on a 23p Renegade. As luck would have it, my local dealer had one they were willing to loan me to see what happened. So, today I went and picked it up and tried to install it. I say "tried", because after putting the correct spacer on and installing the nut and keeper, the keeper was too far out on the shaft to install the cotter key. After doing a little checking, it would appear the the hub in the prop that was on the motor is about a 1/4" shorter than the Renegade. Not sure what the story is here...after examining the prop it would appear that the inside inner face has been machined to remove some material...I am guessing about 1/4"(this may also be why I cannot find any numbers stating the diameter and pitch...). NO idea why this would have been done, unless the prop shaft is not original? The shaft itself measures 6-1/4" from the shoulder where the spacer rests to the end; and 6" to the cotter key hole. I measured the length from the front face of the spacer on the Renegade to the back of the hub and it measures 5-1/4"; the original prop measures 5" over the same distance. As I see it, I have several options:
1. Leave everything as is and use it as such;
2. Have a machine shop turn about 3/16" off of the spacer so I can install the keeper and cotter key;
3. Replace the prop shaft or lower unit;
4. Repower;
5. Connect a lightning rod to the motor and pray for a storm.
My concern with option 2 is, would having the prop ~3/16" closer to the housing affect performance? I have a spare spacer, so nothing lost to have it modified...
Really don't want to do option 3, but after the issues I have had with this thing, option 4 is looking very attractive...with option 5 running a very close second.
Has anyone dealt with a similar issue?
Thanks!
Tom