I am at a complete loss with my twin 150's. They will not rev past 4k at idle in the water or go past 2-2500 trying to accelerate. I rebuilt all 12 carbs this spring but used cheap Amazon rebuild kits and the motors would run great wide open but they would not idle. The cheap gaskets in the kits looked like wet noodles after running them. I got refunded the money and boat oem johnson kits with floats and everything and even new carb bowls because some were warped.
I rebuilt them all again and put the boat in the water the weekend before last and now it will idle great but will not plane the boat. I pulled all 6 carbs from one motor to check the floats and readjusted them in case it was running out of fuel but that didn't seem to make any difference. When I removed them and drained they were all full of fuel.
Since it is happening to both motors today I looked at the only common thing which is the gas tank. I thought maybe I got bad gas when I filled up so I ran 1 motor from a gas can plumbed directly to the motor and still the exact same thing.
Is there something I could have done wrong on all 12 carbs? I also took a video trying to rev it in the water I will try to attach. Thanks for any help you guys have.
https://youtu.be/S-ixnkYKeXM
I rebuilt them all again and put the boat in the water the weekend before last and now it will idle great but will not plane the boat. I pulled all 6 carbs from one motor to check the floats and readjusted them in case it was running out of fuel but that didn't seem to make any difference. When I removed them and drained they were all full of fuel.
Since it is happening to both motors today I looked at the only common thing which is the gas tank. I thought maybe I got bad gas when I filled up so I ran 1 motor from a gas can plumbed directly to the motor and still the exact same thing.
Is there something I could have done wrong on all 12 carbs? I also took a video trying to rev it in the water I will try to attach. Thanks for any help you guys have.
https://youtu.be/S-ixnkYKeXM