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picked up a 89 AE-21 with a 91 225 Yamaha,boat looks great and is solid,drove around ,great ride and feel,couple of questions?
top speed is 74 mph gps and 5500 rpm,is that right?
- has a 26 p chopper prop
- what is max rpm on that engine?
-it has dual cable steering,was thinking on a Hydrolic system?

Check out "jupiter valero's" a-21 in the "props, setup, and rigging" section. Some good info and he might be able to help out.

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There is a lot more speed in it but you need to buy some parts. A jack plate and water pressure gauge would be a good start, raise the motor and you will pick up rpm's and speed until you run out of water pressure. Then it's time for a low water pickup.

Like what ydo said jupiter has some info on his that will help out.

Great looking hull though

After reviewing your pictures above you first need to add a hyd. jackplate and increase your setback to about 12". You'll need low water pickups and a nose cone. Make sure you have a good water pressure gage and temperature gage. Your new setup should yield speeds well into the mid to upper 80's..maybe even 90+.

thanks ,it has a hyd jackplate,just need to get a set back,what think off hyd steering?

I have hyd steering on my vegas and my viper and love it, I'm trying a cable and pulley system on my vking.

77viper wrote:I have hyd steering on my vegas and my viper and love it, I'm trying a cable and pulley system on my vking.

Going old school!