Ranger not getting on plane

[Ace181.5]

I am running a 2006 Ranger Reata with a 150fs Yamaha. There is also a jack plate on the stern. I have tried everything from a 17 4blade, 19 and the 21 pitch that it came with. I am having issues getting on plane. Can anyone give me some advise on what height the jack plate should be mounted at and what prop I should be running?

 

[Sea Rider]

Welcome to IBoats,

Is that a short or



tall lower leg motor ?

Happy Boating

 

[gm280]

There really are only two reasons for a boat not to plane. First, not enough power. Second, boat too heavy. Since you stated you changed props from 17 pitch to 21 pitch and that didn't plane it out, it can only mean either your engine has issues OR your boat is carrying way too much weight. The height of the cavitation plate is usually with in an inch of the bottom of the hull for a typical setup. Going higher can increases top end speed, but you have to make absolutely sure your engine is getting enough water intake to cool the engine. Too high and the engine will over heat. Too low and it decreases speed due to drag. It is always a trade off... JMHO

 

[Sprig]

Don’t know how long you have had the boat but how long have you had this problem? When did it start? What was your top speed before it started not planing? Currently what is your max speed and rpm’s? A150hp Yamaha should pop that boat up on plane and you should get 50 mph plus. Also when was it last tuned/serviced?
It’s either due to engine poor performance or excess weight due to hull water saturation.

 

[Texasmark]

Running a jack plate and having a Ranger BB changes the rules. I assume your Reata, being a Ranger and made for speed...Forrest liked to build them to run fast...... has about a 6" setback of the transom from the rear of the hull, and may have a pad....I haven't seen a transom view of a Reata.

What GM280 said is the norm for normal transoms and without jack plates. The "big guns" on here used to recommend 1" engine raised per 6" of "setback". That would put your engine's AV plate 2" (1 for the hulls setback, and 1 for the jack plate setback) above a straight edge extended from the keel area of your hull with the engine perpendicular to the hull. Additionally, high speed boats usually run the plate a little high for less drag so you may need to be on up 3 or 3 ½.

I don't have the numbers for your engine's max rpm nor gear ratio so that stops my continuing there.

Additionally you didn't mention anything about the condition of your engine nor what kind of trim you selected, nor where your engine was currently mounted (ref my height comments above), wether or not you firewall it and does it blow out and spray water out behind the boat, or does it just lug and doesn't come up in rpms. You also didn't tell us the differences in the 17and 21P performance.

Having the 19 and 21 "that came with the boat" says that at one point in time the boat was capable of running both props. Possibly the 19 was a reduced pitch for certain occasions, like water sports with the boat full of family....and may have driven the PO down to the 4 blade 17....but the boat still would have had a stellar hole shot (getting out of the hole and up on plane) indicating that you may be limited by engine problems also.

Last you didn't mentioned what type props you were running, like SS or alum, ported or not, name of prop like Stiletto, Ballistic, Laser II. They do make a difference.

 

[QBhoy]

I’d imagine that normally such a set up would run much more pitch that either of these props.
Is your jack plate set high when you are coming out the hole or something ? Is there a wedge fitted that won’t allow the engine to trim down fully for getting out the hole ? Something is weird about this for sure.

 

[Faztbullet]

I am having issues getting on plane​

Before anyone can correctly answer...explain exactly what these issues are???? What will you be using boat for? fishing? skiing/ cruising?