Log in

View Full Version : Flat spot when accelerating


2001OutbackLS
07-01-2021, 06:23 AM
I have a 2001Outback LS. I've noticed that when I accelerate the boat gets to 2900rpm, about 10.5mph and seems to be stuck there for a few seconds before taking off. The boat has the 5.7 indmar carburetored motor. The boat is new to me last year. TIA!!!
james yarosz
07-01-2021, 10:01 AM
Could be a lot of things but I guess I,d be suspect of the carburetor.
2001OutbackLS
07-01-2021, 11:13 AM
Could be a lot of things but I guess I,d be suspect of the carburetor.



Thanks I replaced the accelerator pump and carb is clean. I've read about adjusting the float to compensate for bow rise, but I'm not sure that's a real fix
SONIC
07-01-2021, 06:05 PM
That's probably when the engine is working it's hardest l. I'd replace the fuel filter and distributor cap and rotor as a starting point. All cheap parts and all likely culprits.
james yarosz
07-02-2021, 10:21 AM
I have a 2003 ls and I adjusted my float levels with the boat just floating in the water.Never have any problems acceierating.