1995 115 merc tracker - low rpm and speed

[Chris Tworek]

Hey guys, I've recently purchased this boat and when i took it out on the water last weekend i'm only getting about 4000rpm,and 30mph. I've had the timing checked, leads checked, plugs changed, copression tested/ changed the fuel in the tank, fuel filter on the motor.After i ran it, i checked the new plugs again and they all look uniform...... what shoud i do now. ?<br /><br />Thanks <br /><br />Chris

 

[Laddies]

Re: 1995 115 merc tracker - low rpm and speed

Ck prop pitch it cold be over propped

 

[MurdockJr1]

Re: 1995 115 merc tracker - low rpm and speed

What style and size is the boat this will have alot to do with checking the set up. Also what prop size are you running.

 

[Chris Tworek]

Re: 1995 115 merc tracker - low rpm and speed

Right now I'm runnuing a 22" stainless quicksilver on a low profile bass boat.

 

[MurdockJr1]

Re: 1995 115 merc tracker - low rpm and speed

Is the boat aluminum or fiberglass what is the weight of the boat. I have a 2002 115 Merc two stroke (same motor as yours) on a 17 ft deep V and run a 20 pitch laser 2 at 47mph 5250 rpm. Sounds like that motor is not up to par, it is the 2+2 motor and possibly only running on 2 or three cylinders.

 

[Chris Tworek]

Re: 1995 115 merc tracker - low rpm and speed

Hey murdock, the boat is 18.5' fiberglass. not sure on the weight. Yes it's the 2+2 2 stroke. Thats what i suspect (short a cylinder) but when i took the plugs out after a run they all look the same, maybe i need to run it for a longer time?? I read on another thread about some one using seafoam, or carb cleaner, to run through the carbs to clean out the fuel jets. What do you guys think?