Need help with my 84 hydrostream viper

**woodys84viper** · 06-19-2010, 10:55 PM

my boat doesnt seem to want to plane unless all the weight is on the front of the boat i just got it and need help badly it is getting really fustrating since its my first boat it has a mercury 100hp oil injected two stroke and when it does plane its amazing

**mr.clean** · 06-19-2010, 11:10 PM

Prop?
Height?

**woodys84viper** · 06-20-2010, 01:03 AM

the prop that is on it has is a 48-75772a-4-24p

**Riverman** · 06-20-2010, 08:35 AM

Does the boat have a jackplate? If so what is the distance from the propshaft centreline to the bottom of the planing surface?

Also these boats get waterlogged making them very heavy.

**woodys84viper** · 06-20-2010, 01:06 PM

as i said this is my first boat got a great deal on it i think that the motor is to low and theres a hydrofoil on it to but the boat is slurping down gas i have know ideal what the jack plate is if its what connects the motor to the transom than yes it has one its in the middle hole it can go up two or down two plus i can raise it up by turning the bolts on the sides to

**Riverman** · 06-20-2010, 03:27 PM

A jackplate is a bracket that mounts between the transom and motor. Its purpose is twofold: to provide a means of adjustment of engine height and to set the engine back from the transom to change the boat's centre of balance.

Probably best to post a pic of your setup and go from there.

**woodys84viper** · 06-20-2010, 04:29 PM

no it doesnt have a jackplate just regular motor mount with powertilt

**Riverman** · 06-20-2010, 05:40 PM

You may have too much prop there. What RPM does the engine run at when wide open?

**woodys84viper** · 06-20-2010, 08:09 PM

it runs around 4500 or 4800 somewhere around there i dont have the tachometer connected right now since i am in the process of redoing the wiring

**transomstand** · 06-20-2010, 09:19 PM

Are you trying to nurse this thing up, or do you stand on it, and wait for it to catch?

**woodys84viper** · 06-20-2010, 09:35 PM

i tried to nurse it up and floor it and it catches when it wants to if theres any one in the boat i have to have them stand up and lean forward should i move the battery and fuel tank to the nose of the boat to try to even it out?