The above motor can runs great, sometimes. I was just on swannee river and had the boat WOT, crusing about 43knots. I lost power slowly from about 5k rpms to about 4400 rpms and dropped speed as well.
Here is the kicker, I pulled the airbox off and put my hand over each carb to check to see how it was pulling air. Dont ya know, once I put my had over the carb on the right side, middle carb, the damn boat took off again to normal speed and rpm's.... Throughout the day I experinced some very slow hole shots.....
I have that carb and the one below it off the boat tonight and cleaned them. They are plastic!!! news to me. And I could not find the jet in it,I guess its in that metal manifold? , I did see some dirt, just some small amounts in the bottom of the bowl on one of them.
While I have the carbs off, is there anything or any other cleaning I could do before I put them back on? If I unscrew the needle, how to I get it back in the right position? Feels like the main jet is not getting fuel properly on that carb... I dont know what to do about it.
Has anyone had simlar issues? Will the Carb cleaing do the trick?
Fire away... I have some skill with engines, but, have not done much marine engine work..
Things I have done to this point.
1. replaced the plugs, found nothing out of the norm on the old ones.
2. repleced the water filter
3. Bulb stays fairly hard after its pumped up, and the engine does not recover if I pump it back up after it loses power.
4. I ran the fuel tank low just to make sure any bad gas was used up.
Thanks ahead of time for any replies.....
Here is the kicker, I pulled the airbox off and put my hand over each carb to check to see how it was pulling air. Dont ya know, once I put my had over the carb on the right side, middle carb, the damn boat took off again to normal speed and rpm's.... Throughout the day I experinced some very slow hole shots.....
I have that carb and the one below it off the boat tonight and cleaned them. They are plastic!!! news to me. And I could not find the jet in it,I guess its in that metal manifold? , I did see some dirt, just some small amounts in the bottom of the bowl on one of them.
While I have the carbs off, is there anything or any other cleaning I could do before I put them back on? If I unscrew the needle, how to I get it back in the right position? Feels like the main jet is not getting fuel properly on that carb... I dont know what to do about it.
Has anyone had simlar issues? Will the Carb cleaing do the trick?
Fire away... I have some skill with engines, but, have not done much marine engine work..
Things I have done to this point.
1. replaced the plugs, found nothing out of the norm on the old ones.
2. repleced the water filter
3. Bulb stays fairly hard after its pumped up, and the engine does not recover if I pump it back up after it loses power.
4. I ran the fuel tank low just to make sure any bad gas was used up.
Thanks ahead of time for any replies.....
