Jet Wash pressure hack?

[Earfixr]

Has anyone figured out a way to get more pressure from your Jet Wash hose? New spray nozzles, hose, etc? I've already checked for kinks but all looks well. I saw the post from one of the ski boat guys who put a PVC fitting over his jet drive nozzle. Brilliant idea but not quite ready for that. I need more cowbell!

 

[Yam190]

It works great at full throttle

 

[Speedling]

Has anyone figured out a way to get more pressure from your Jet Wash hose? New spray nozzles, hose, etc? I've already checked for kinks but all looks well. I saw the post from one of the ski boat guys who put a PVC fitting over his jet drive nozzle. Brilliant idea but not quite ready for that. I need more cowbell!

Yeah, @Julian made one and gave it to me. Sadly, all your fancy new boats don't have the cool feature my "old" boat does. I can rev up the motor with the gate in neutral. So the cup goes over the nozzle, locks in with the gate, and then I rev up that motor, the water goes through the tube to a small nozzle and BOOM! instant squirt gun! Or ballast bag filler... or never gonna lose a water fight again!

 

[Julian]

I assume you have already increased the neutral throttle as much as it will go? (not in shallow water of course!)

 

[Julian]

Also, @OUT ON THE REEF modified his for more power and fresh water....

190 FSH YAMAHA Raw Water Washdown System Change To Fresh Water Washdown - YouTube by OUT ON THE REEF posted Mar 29, 2016

 

[Speedling]

I assume you have already increased the neutral throttle as much as it will go? (not in shallow water of course!)

I haven't but eager to try on someone unsuspecting down a raftup

 

[Julian]

I haven't but eager to try on someone unsuspecting down a raftup

This was actually targetted at the OP @Earfixr . I THINK you can press the Cruise Assist/No Wake button while in neutral in increase the RPMs to a max of something like 2400....this increases the pressure in the pump...and thus the water pressure to the wash down. If yours is REALLY low....you might have a kink in the line, or perhaps one of the fittings has a burr in it obstructing flow?

If you post a short video of your max flow...others will chime in to say if that is normal or not.

 

[Ronnie]

Can't you just add an inline pump to the fsh wash down system to increase the intake and output of water?

 

[Earfixr]

I'll take a video this weekend with JetWash engaged the nozzle at wfo. No kinks in the hose.

 

[JDinfla]

I have been planning to add a T to the live well fill hose and add a on demand salt water wash down pump

 

[Earfixr]

JDinfla, isn't that exactly what the JetWash is for?

 

[kthrash]

JDinfla, isn't that exactly what the JetWash is for?

I think what he is saying is to be able to have a wash down pump without cranking the motor.

 

[Ronnie]

I agree with @kthrash and @JDinfla but now wonder how big the pickup is on the fsh. I have several wash down pumps and they all use a 1/2" to 3/4" ID intake hose. If the fsh uses the same dropping an aftermarket pump in place should be easy (i.e., one hose in, one out and three electical leads). Prices vary from $140 for a 3 gpm kit to $350 for a 6.5 gpm pump alone. Id buy the extended warranty since i have had a few pumps die on me .

 

[JDinfla]

Jetwash? Hahaha

 

[JDinfla]

The nice thing about jet wash is that the hose and coupler coming through into the boat are already there, add a pump and a little rerouting and at the flick of a switch you could have twice the pressure through the existing fsh wash down hose.

 

[Thompsbren]

I had an extra hole in my hull from a re-located transducer and had a thru hull and wash down pump installed. Its a 3.5gpm Johnson pump that connects to the Jetwash hose and is powered by one of the accessory swithces. I had the factory jetwash disconnected because it was pretty useless to me. Works great and factory appearance. Probably not worth it if you don't have to find a use for a hole, but works for me.