ALLLCAPSRAGE
Member
After buying a hopped up HX with a factory pipe, I started doing some research on what components I would need and what I didn’t have. One of the major components I didn’t have was a Micro Touch or MSD with ECWI, both of which are impossible to find for sale. After doing some research I was able to come up with a substitute.
The Micro Touch does two things:
raises rev limiter to 8,000 rpm
Injects water into the manifold from 2,500 to 5,800 rpm
Problem and solution 1: raising the rev limiter, by getting this mpem you can raise the rev limiter. CDI Box for Sea-Doo 580 / 720 (1995-2002) Adjustable Rev Limiter - VintageJetSki.com
Problem and solution 2: ECWI, buy this: JEGS 40826: RPM-Activated Window Switch with Digital Readout [3 Mode] - JEGS High Performance
This is an rpm activated window switch for cars with nos. This is not designed for water so you have to coat with conformal coating or clear nail polish.
This has 4 wires: red, black, blue, and grey.
Red: splices into solid purple wires on mpem
Black: put ring terminal on the end of the wire and attach to negative post inside of ebox
Blue: goes to the negative side of the solenoid
Grey: needs to be spliced into the red/black wire coming from mpem and going to coil
Water injection solenoid:
HFS (R) 12v Dc Electric Solenoid Valve Water Air Gas, Fuels N/c - 1/4IN, 1/2IN, 3/4IN, 3/8IN,1IN NPT Available (12V DC 1/4IN NPT) https://www.amazon.com/dp/B018WRJYP...abc_YPK9YC5Q1A4AZT526T8F?_encoding=UTF8&psc=1
I bought the one with 1/4in npt outlets
The solenoid needs to be hooked up with positive going to the fixed-on side of the starter solenoid and negative going to blue wire from the rpm window switch.
I hope this helps with anyone in the same situation as I was, with not being able to find any MT’s with ECWI for sale
Here’s some supplemental info
Happy to try and answer any questions anyone might have!
The Micro Touch does two things:
raises rev limiter to 8,000 rpm
Injects water into the manifold from 2,500 to 5,800 rpm
Problem and solution 1: raising the rev limiter, by getting this mpem you can raise the rev limiter. CDI Box for Sea-Doo 580 / 720 (1995-2002) Adjustable Rev Limiter - VintageJetSki.com
Problem and solution 2: ECWI, buy this: JEGS 40826: RPM-Activated Window Switch with Digital Readout [3 Mode] - JEGS High Performance
This is an rpm activated window switch for cars with nos. This is not designed for water so you have to coat with conformal coating or clear nail polish.
This has 4 wires: red, black, blue, and grey.
Red: splices into solid purple wires on mpem
Black: put ring terminal on the end of the wire and attach to negative post inside of ebox
Blue: goes to the negative side of the solenoid
Grey: needs to be spliced into the red/black wire coming from mpem and going to coil
Water injection solenoid:
HFS (R) 12v Dc Electric Solenoid Valve Water Air Gas, Fuels N/c - 1/4IN, 1/2IN, 3/4IN, 3/8IN,1IN NPT Available (12V DC 1/4IN NPT) https://www.amazon.com/dp/B018WRJYP...abc_YPK9YC5Q1A4AZT526T8F?_encoding=UTF8&psc=1
I bought the one with 1/4in npt outlets
The solenoid needs to be hooked up with positive going to the fixed-on side of the starter solenoid and negative going to blue wire from the rpm window switch.
I hope this helps with anyone in the same situation as I was, with not being able to find any MT’s with ECWI for sale
Here’s some supplemental info
Happy to try and answer any questions anyone might have!
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