$txt['youtube'] = 'YouTube'; $txt['youtube_invalid'] = '#Invalid YouTube Link#'; 2.0 Review (take 2)

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Offline voipwell

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2.0 Review (take 2)
« on: September 25, 2019, 04:09:07 PM »
I have a 1.0 and i wanted to pass it down to my wife and get a 2.0 for myself.   She could do 18 mph in 1.0 while i was doing 22 in 2.0.  1.0 was not planing but working hard to go 18 pushing water.  At about 10 miles upstream 1.0 died(battery failure).  2.0 towed 1.0 three miles upstream full throttle working like a dog.  Then,  when we ran out of water above 6 inches we turned back to go another 13 miles to the launch.  That experience bonded me with the Kholer who is so misunderstood and fat shamed daily.  You want to wreck your 1.0 experience?  Drive a 2.0. and you are shot.  When it planes,  the cockpit hovers above the water isolating  you from the water chop and swells. 

I got an early model and there were a couple of issues with the fuel delivery that i worked out with the help of Mokai.  The draw tube in the gas tank needed to be unscrewed 3 turns to fix the issue with it being to tight causing blockage.  The other thing i did was put an  electric fuel pump on the gas tank to replace the pulse pump which now can be used as a bilge pump instead of a fuel pump.  That's a pretty cool byproduct of a problem. 

I really am a fan of Mokai because of 2.0.  1.0 was ok but i really wanted 2.0.  I understand there are some unexpected weight issues for some but otherwise Mokai has delt with me very professionally.  I think the boat is worth much more than i paid so the extra work i put in strikes a fairness chord in me.  But if you had difficulty with the fuel system then i understand frustration,  but i'm basing my opinion on how I was treated.  In the first 10 days i had the boat Mokai discovered the fuel issue with the tank and the pump and was very helpful fixing yes their mistake but i looked at it as my problem and fixed it. 

As a 175 lb person i have only 1 criticism of the boat.  The Joystick spring.  It is almost impossible to keep the boat at a constant reduced throttle.  You are not allowed to have that type of throttle in a state park.  It sends out all kinds of "pwc" signals that will get Mokai's kicked out of State Parks if people in their Mokais can't keep their throttle steady.  If the throttle would lose it's spring and have a little more resistance to hold it in position when released then longer trips would be much easier.  My hand cramps from holding the stick too tight.  I think you can learn but holding it steady is not fun.  The Kholer towed 1.0 for 16 miles much of it full throttle and i figured if it was going to melt it should happen before i buy another one.  You would not believe how well it ran in 79 degree heat towing.  And when returning to idle after and hour or so WOT it gave that signature Kholer idle. 

I really hope we can keep this thread about 2.0 and not how a company handles their mistakes.  If i weighed 210 i probably would not be writing this or at least this way.  But at the end of the day,  if you weigh 175 lbs i know you won't be sorry. 

Offline voipwell

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Re: 2.0 Review (take 2)
« Reply #1 on: September 25, 2019, 04:28:30 PM »
1.0 vs 2.0.  Same route with speedometer.

1.0 Delaware River
https://www.youtube.com/watch?v=7xNb9wvRpSQ

2.0 Delaware River
https://www.youtube.com/watch?v=Z1zH9QvBMDA

Offline Painlesstom

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Re: 2.0 Review (take 2)
« Reply #2 on: September 25, 2019, 06:33:31 PM »
Good comparison videos. Glad to hear the fuel issues have been found and are being sorted out. Are there any safety measures in the fuel pump circuit that would shut off the pump if the engine quit? That's one reason I have avoided electric pumps in anything if I can help it.

So was the battery in the 1.0 the issue with the controls quitting, or was it a connection issue?
Tom

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Offline voipwell

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Re: 2.0 Review (take 2)
« Reply #3 on: September 26, 2019, 11:05:49 AM »
Battery died.  When i tried to charge it i couldn't get it above 10.7 volts.  Put another battery in and perfect.  Second battery that was bad from Advanced Auto.  they are autocraft and appear to be poor quality.  I am using a lithium battery like in the 2.0 now.

Funny how the throttle servo had a had time first with the voltage drop and then the steering followed.  Then not enough voltage to fire the plug and it stopped.  I'm carrying a spare battery on long trips since it's about 1 pound.  Electrical does leave you vulnerable,  but you need electric anyway to start.  When the voltage drops from a bad battery like that you can't keep going even without control box if the battery sucks all the life out of the electrical system.  I verified the Mokai is charging and that the battery is defective.  It did look like 1.0 may have overheated and cooked the servos but that was not the case. 

Offline voipwell

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Re: 2.0 Review (take 2)
« Reply #4 on: September 26, 2019, 11:14:29 AM »
the electric fuel pump is very high quality and matches the requirements very well.
https://www.ebay.com/itm/362270444981  I used industrial velcro to attach it to the tank.  Mokai supplies a wiring harness with 2.0  that plugs into accessory 1 plug in the engine compartment.  Simply plug one end into the harness and wire the black to black and red to red on the pump.
when you turn the key on the pump fires up and when you turn the key off it stops.  You can run it with the engine off by turning the key on but not start it but it's only 1-2 lbs so it can't overwhelm the float needle in the carb  and can draw gas 14 inches vertically from a tank.  Made in good ole NY where all good water products are made, not China.

Offline Painlesstom

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Re: 2.0 Review (take 2)
« Reply #5 on: September 26, 2019, 01:52:20 PM »
Battery voltage has nothing to do with spark, the coil is self energized and has no power going to it. The power switch simply grounds the coil when shut off, just like on your lawn mower, so with that switch on the engine would pull start if the idle was high enough to allow it.  If the engine shut off when the battery died, then the servo was holding the carb at idle instead of the idle screw. I would adjust that personally.

The fuel pump being suitable and good quality wasn't the concern, it was safety. Say there was a leak and the engine shut off or there was a fire, nothing would shut the pump off unless you did. With the pulse pump the fuel flow stops when the engine does. Something should be in place that would shut the pump off if the engine stops on it's own.
Tom

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Offline voipwell

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Re: 2.0 Review (take 2)
« Reply #6 on: September 26, 2019, 07:20:12 PM »
Anyone know what this is in the picture?  Winner may not have to use an electric fuel pump.

Offline Painlesstom

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Re: 2.0 Review (take 2)
« Reply #7 on: September 27, 2019, 12:22:05 AM »
Barbed hose fitting, where would you screw it in to get a pulse signal? Best place on the Subaru was the carb spacer.
Tom

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Offline mokamo

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Re: 2.0 Review (take 2)
« Reply #8 on: September 27, 2019, 11:38:25 AM »
Following this topic.

Safety is my number one concern and I'm hopeful MOKAI will get this fixed with no additional concerns from the experts.
 
And what about the 2.0 without a clutch. So we cannot run, pause in one spot for couple of min and run again. Any review on this from VOIPWELL? He seemed to have had not noticed the importance of clutch.
Just waiting for these two concerns before placing my order....
Thanks for people continuously sharing their experience. That will help us decide when to pull the trigger...I'm 155 lbs so this 2.0 could be my new favorite boat in my boat collection hehe...Plsssss MOKAI, rush the fixes so I can have one before it gets too cold here at NC...
« Last Edit: September 27, 2019, 11:41:03 AM by mokamo »

Offline Painlesstom

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Re: 2.0 Review (take 2)
« Reply #9 on: September 27, 2019, 12:25:43 PM »
My understanding is the 20% overdrive ratio that had to be used with the clutch was too much load on the motor and caused problems with speed. The smaller pulley to get the drive ratio at 3% overdrive for best performance won't work on their clutch. Belts only come in so many sizes and when one is too small and the other too big they are stuck working with what they have. Had they incorporated a belt tensioner into the design this wouldn't have been an issue, a pulley change on the pump side and just re tension the belt would have handled it as far as I can tell. But they designed this with a fixed tension, so they are stuck.

Hopefully they'll figure something out and not leave people hanging, otherwise you'd have to ask for the clutch and figure something out  yourself like I outlined above.
Tom

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Offline mokamo

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Re: 2.0 Review (take 2)
« Reply #10 on: September 27, 2019, 12:33:08 PM »
MOKAI don't have to solve anything.
All they have to do is give you Tom a boat so you can start testing it and start filling up the gap. 

Offline mokamo

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Re: 2.0 Review (take 2)
« Reply #11 on: September 27, 2019, 01:24:36 PM »
Second video. Watched it and there were some moments where it sounded like a metal hitting the rocks instead of the hull. Maybe just my poor hearing...Was it the JP hitting the bottom?

Offline Painlesstom

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Re: 2.0 Review (take 2)
« Reply #12 on: September 27, 2019, 01:51:28 PM »
Sounded like things bouncing around inside the hull, or the bow flopping around if it fits like the 1.0 did.

I'm sure I could find plenty of things to fix on these, but Mokai does things their way in their time without anyone else's help. They're working on fixing the current problems so I'm happy to leave those problems with them. I'd help anyone who had problems that I could do something with, but I'm not actively trying to get involved with this model yet. I'm sure it will happen in time, I've put too many roots down not to as some point but don't see that being anytime soon.
Tom

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Offline strick

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Re: 2.0 Review (take 2)
« Reply #13 on: October 02, 2019, 09:50:17 AM »
Forgive my ignorance but if the battery dies then you cannot even pull start the motor to get home? Is that because of the servo electronics? wont allow you to steer the boat?

strick

Offline Painlesstom

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Re: 2.0 Review (take 2)
« Reply #14 on: October 02, 2019, 10:13:58 AM »
The charging system doesn't have enough current to power the electronics, so while the engine can start and idle you would have no control over the throttle or steering. Electrical dependency in these boats was a bad idea in my opinion. Why I converted the 1.0 back to direct cable control, reliable.
Tom

  >:D    

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