trashcanslam
Seaman Apprentice
- Joined
- Nov 14, 2019
- Messages
- 38
Hello all,
Background: I upgraded from a 9.9 johnson on a gheenoe to a 40hp 2 stroke suzuki on a stumpknocker. The boat was cheap, but I took a risk on it considering the seller could not start the boat for me, nor demonstrate the tilt and trim working. Fortunately, I was able to get the tilt and trim and motor to run like a top right now, except for a few issues I describe below.
What I've done so far:
Replaced the carburetor. The old one had gas jelly inside the bowl and adjustment screws broken off. Bought a new one off amazon, and had to retrofit it a bit so the throttle linkage could be hooked up on both sides as it was before. Frankly, this was a surprising to me, since the carburetors were identical except for the linkage on the sides. I have not yet calibrated the carburetor.
New Impeller : and water pump housing. The seller said he changed them, but I did not trust his work considering the engine did not pee on muffs. The old impeller was fine, except the arms (not sure of the correct nomenclature) were bent in different directions. The problem, however, was blockage caused by dirt-like debris deep inside the water passages. I managed to get that all cleared out, but not before I had to remove the powerhead to get deep enough. The motor pees great now. Changed the thermostat which was corroded to heck just for fun.
Problem: In doing all this, I disconnected the shift rod from the lower unit. I goofed, and took the barrel nut completely off. When I put it all back together I realized the F-N-R positions were all off. Neutral was Forward, Reverse was Neutral, and Reverse proper was not there. So I put it in forward, disconnected everything, pushed the shift rod all the way down, and reattached everything. On muffs it shifts fine, and in the water the motor runs great EXCEPT, reverse. When I put it in reverse, it grinds and somewhat works, although not smoothly. When I put it all the way in reverse, it lurches and the rpms rise rapidly.
What I am wondering is whether the linkage on the shift rod is still off, can it be adjusted, OR is this a sign of the clutch dog slipping? I don't know whether this problem existed before because the motor did not run before I got to work on it. Your help is very appreciated.
Finally, one problem I did encounter yesterday is that the motor will shut off if I slow down from +20mph to about 8mph or neutral. I am thinking this could be an unadjusted carb, as I have not adjusted it. Do I simply adjust the mixing screw, or does this model have a low idle screw I need to adjust as well?
Thank you for your time in reading this, and thanks ahead of time for your answers! Links to posts and readings on this are very appreciated. I had Leroy's ramblings to go off of with the johnson. I wish there was something comparable with suzukis.
Background: I upgraded from a 9.9 johnson on a gheenoe to a 40hp 2 stroke suzuki on a stumpknocker. The boat was cheap, but I took a risk on it considering the seller could not start the boat for me, nor demonstrate the tilt and trim working. Fortunately, I was able to get the tilt and trim and motor to run like a top right now, except for a few issues I describe below.
What I've done so far:
Replaced the carburetor. The old one had gas jelly inside the bowl and adjustment screws broken off. Bought a new one off amazon, and had to retrofit it a bit so the throttle linkage could be hooked up on both sides as it was before. Frankly, this was a surprising to me, since the carburetors were identical except for the linkage on the sides. I have not yet calibrated the carburetor.
New Impeller : and water pump housing. The seller said he changed them, but I did not trust his work considering the engine did not pee on muffs. The old impeller was fine, except the arms (not sure of the correct nomenclature) were bent in different directions. The problem, however, was blockage caused by dirt-like debris deep inside the water passages. I managed to get that all cleared out, but not before I had to remove the powerhead to get deep enough. The motor pees great now. Changed the thermostat which was corroded to heck just for fun.
Problem: In doing all this, I disconnected the shift rod from the lower unit. I goofed, and took the barrel nut completely off. When I put it all back together I realized the F-N-R positions were all off. Neutral was Forward, Reverse was Neutral, and Reverse proper was not there. So I put it in forward, disconnected everything, pushed the shift rod all the way down, and reattached everything. On muffs it shifts fine, and in the water the motor runs great EXCEPT, reverse. When I put it in reverse, it grinds and somewhat works, although not smoothly. When I put it all the way in reverse, it lurches and the rpms rise rapidly.
What I am wondering is whether the linkage on the shift rod is still off, can it be adjusted, OR is this a sign of the clutch dog slipping? I don't know whether this problem existed before because the motor did not run before I got to work on it. Your help is very appreciated.
Finally, one problem I did encounter yesterday is that the motor will shut off if I slow down from +20mph to about 8mph or neutral. I am thinking this could be an unadjusted carb, as I have not adjusted it. Do I simply adjust the mixing screw, or does this model have a low idle screw I need to adjust as well?
Thank you for your time in reading this, and thanks ahead of time for your answers! Links to posts and readings on this are very appreciated. I had Leroy's ramblings to go off of with the johnson. I wish there was something comparable with suzukis.
