Hi everyone, I just installed a new powerhead because the last motor blew 2 pistons and cracked the exhaust ports so I couldn't bore it out.
So I installed it and it started right up , I was using the dealer flushing kit with low water pressure. As told by the motor manufacturer I am running 25:1 pre-mix, I also throughly cleaned the carbs, reeds, new themostat, fuel lines, and fuel filter.
Here's the things that are concerning me:
1. Engine idle rpm is around 1900 (tried adjusting the linkage and looks correct)
2. Lack of exhaust smoke (this bothers me because i'm running 25:1)
3. I havn't played with the timing yet (I tried to keep it exactly as it was when I took it off the other motor - I plan on timing it properly)
4.I am planning on checking the fuel pump pressure to make sure its in range.
My feeling is that the pump is not providing enough gas which is causing a lean condition which is thus causing the rpms to shoot up and also the lack of smoke. I didn't touch the idle screws because it ran good before it blew up, so it don't think that
is the problem. This thing starts on the first turn but I don't wanna blow it up again, so let me know what you guys think
All advice is greatly appreciated
Thanks
Eric
So I installed it and it started right up , I was using the dealer flushing kit with low water pressure. As told by the motor manufacturer I am running 25:1 pre-mix, I also throughly cleaned the carbs, reeds, new themostat, fuel lines, and fuel filter.
Here's the things that are concerning me:
1. Engine idle rpm is around 1900 (tried adjusting the linkage and looks correct)
2. Lack of exhaust smoke (this bothers me because i'm running 25:1)
3. I havn't played with the timing yet (I tried to keep it exactly as it was when I took it off the other motor - I plan on timing it properly)
4.I am planning on checking the fuel pump pressure to make sure its in range.
My feeling is that the pump is not providing enough gas which is causing a lean condition which is thus causing the rpms to shoot up and also the lack of smoke. I didn't touch the idle screws because it ran good before it blew up, so it don't think that
is the problem. This thing starts on the first turn but I don't wanna blow it up again, so let me know what you guys think
All advice is greatly appreciated
Thanks
Eric