How To Install Permatrim

How to install a Permatrim on a Yamaha outboard.

[@j5simons]

the sealing needs to be between the stainless bolt and washers and the ali. parts to stop electrolysis

[@mattackman3359]

Thank you for the video

[@kentyler966]

Was thinking about making one of these out of a piece of 3/16” aluminum. Mine would be flat without the rolled edge. I think the rolled edge is beneficial but I can’t do that. Any idea if a flat hand fitted cavitation would still be beneficial?

[@ChasingPelagics]

they are rather inexpensive, you're better off spending your money on a nice painted product with hardware that is not gonna corrode and trying to save $20

[@revfreighttrain]

Do you have to determine the location and spacing on drilling the holes or is the foil marked in some way?

[@ChasingPelagics]

the spacing is on the template that comes with it

[@revfreighttrain]

@@ChasingPelagics Thank you so much!

[@superdave579]

@@ChasingPelagics template? WHAT template...I just got mine and there was NOOOO template in the box, just the plate

[@robertharper8702]

Hi did you have to take the prop off to do this?

[@ChasingPelagics]

you do not need to take the prop off

[@OrcaAngler]

my boat is little bit heavy at the transom my bow keep raising due to light bow do you think this will help?

[@ChasingPelagics]

For sure or trim tabs, just depends on what ya got

[@OrcaAngler]

@@ChasingPelagics ill go with cheaper one permatrim i guess

[@MrAbundance007]

Hi there did the permatrim make difference in handling? Did top speed change? Planing speed ?

[@thrasher949]

MrBMan no change in top speed. It’s makes the stern ride a little higher. Almost the same as moving up a hole, but you don’t loose your low speed turning especially in reverse. Helps when u add weight to the rear (200lbs of ice, fish, and full 60 gallon bait tank).

[@A.Matt7]

Trim tabs could do that

[@BornAgainCynic0086]

G'day, I have cavitation problems, can't get up on the plane very easily, possibly because my motor cavitation fins are 2" too high compared to the bottom of the hull. Any opinions on these to reduce this problem? Thanks, Jeff, Australia.

[@thrasher949]

Jeff H this device will not cause cavitation. First thing I would check is if your outboard in installed at the right height. This is most likely your issue. Second would be the proper prop for your weight and speed of the boat.

[@BornAgainCynic0086]

@@thrasher949 Hi mate, Thanks for the very quick reply! I meant if I put the Permatrim on, do you think it will reduce cavitation, sorry. Yeah, I know the motor is a bit high, but to lower it I would have to hack into the transom lip and I really don't want to do that!! When it finally does get up on the plane (after getting some poor bastard to sit on the bow for 2 minutes, the thing fairly flies. (for 15hp that is)

[@thrasher949]

Jeff H this will not fix the problem brotha

[@BornAgainCynic0086]

@@thrasher949 OK, very sad indeed!

[@odin836]

@@BornAgainCynic0086 cup your prop if you don't have any other option to reduce cavitation..

[@u433274]

I have on on a 17 foot skiff with a 90 Yamaha and one on a 24 foot Triton center console with a 250 Suzuki. They make a profound difference in Boat handling. I will never own any boat with one.

[@superdave579]

The 17 foot skiff do you have a hydraulic jackplate on it as well, or can you run this without a jackplate? I've got a 50 hp.Merc on a 16.5 foot bass boat I want to try it on

[@u433274]

I do not have. Hydraulic Jack plate but I do have a 4 inch setback plate.

[@gonzalouribe405]

You just need three on each side

[@USxNightStalker]

This wont put too much pressure on the 3 bolts vs the pressure distributed over 5 bolts?

[@ahndeux]

You are sealing it the wrong way. Its good that you put a ring around it, but it has to be in the hole around exposed aluminum. Water will find its way between washer to get inside. Best way is to put ring of sealant as shown in the video, some inside the edges of the hole and a dab on the bolt ends and the washer before you tighten it down. That way, the bolt and washer is sealed. It will get messy, but you can clean it up easily before it dries. You just created a nice little pocket for the water to sit and corrode the aluminum.

[@A.Matt7]

And thats why he sold the boat.... for somebody to have the headaches

[@olegasvaltis406]

Geras daiktas

[@ben3989]

Why bother with sealing the holes?

[@ChasingPelagics]

its to protect the bare aluminum from future corrosion

[@ben3989]

Pacific Project I get that, it just seems like it would be tricky to actually seal it completely over the long haul.

[@nickterbrack136]

@@ChasingPelagics Hate to break it to you, but water will still get inside and touch the bare aluminum

[@bobbeckstead8340]

@@nickterbrack136 Not if the hole is sealed from above, below, & between. You also need a nonmetallic coating between the SS & the alum or the bolts will electrolyze the alum and galling will occur.

[@krkabob]

Voids Factory Warranty if new. Just sayin.

[@peterhobman]

I've been told it doesnt void the warranty on brand new yamaha

[@sundancer3700]

Wow 10 bolts, LOL

[@AB-bg1or]

I am thinking if the manufacturers of outboards thought these would help their product, they would come from the factory with them already on. They have engineers that have already figured it out for us.

[@ChasingPelagics]

I would disagree, manufactures make generic products that are designed to work amongst multiple product lines. In this case, this boat now carries a 60 gallon bait tank, 200lbs of ice and usually a full tank of fuel (150 gallons). Adding permatrim and a 15 pitch prop gave me slightly better mpg, better ride and an increase of 7 mph top speed.

[@mixter7x7]

manufacturers ( all manufacturers ) measure production costs #1 against performance and reliability when determining their designs. the manufacturing engineers could easily produce products that perform equal to or greater than any after market product, but everything they add into their production cost is multiplied on the backside of the purchase pricing.

[@jimmcflytorres30]

@@ChasingPelagics i think i can relate to this , just added a bait tank to my boat and has been hard getting on plane, lower pitch prop and this permatrim should do the trick