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Intermittent issue (electric?)

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benjilafouine

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Trouble in sight...

I was cruising at idle on my 2003 GTI LE when engine stopped like if key pulled. Pulled out the key, put it back in and restarted ski. Twenty seconds later it did the same thing again (and no beeps after engine stops like if key removed). Pulled the key out and put it back again and two beeps. Press on start and hear a continuous beep until I let go of the stop/start button.

Started to get worried. Ski did that about 10 times and even at higher speed: it would work 10-15 seconds and would die again. One time out of two I would hear the long beep or it would start (then stop some seconds later). Last time I was able to restart it I hit full throttle and made it back home in one shot (I was only a mile away). No sign whatsoever of engine trouble. Came back home and it did not stop when I approached the dock.

Parked and went inside the home to fetch my second key (brand new) then tried the ski on the lake again. No sign of trouble at all. However I do feel that the battery is a bit weak so I took it out of the water to slow charge it overnight (1 amp). Checked the spark plugs: like new. Hit the start button without the plugs: no sign of water in engine (I don't see how it could have happened). Put back the plugs, tried to start with both keys (the old and the new): engine started both times (I turned it off right after it started).

Anyone has an idea of what could have happened? I was told it was not overheating (it is steaming over here and lake water is very warm) because I would have heard a beep while running (local mechanics said). Old key worn out? Battery weak? Key post starting to be defective? I haven't used it much this summer. Not even two full tanks I believe.

Thanks.

Benji.
 
The one I had got worse and to the point it would give 2 beeps, start then as soon as it got up out of the water it would die, over and over. Gave up for the day and a new post cured it.
 
Did some riding today and ski stopped with both keys (the old and the new). Seems like the issue is worse when it is really hot outside. I am able to restart the ski by pressing hard on the key but obviously this issue will get worse. The next two things in line are the DESS post and the MPEM according to the manual. What should I do next?
 
No one seemed to be interested in helping me fixing my 2003 GTI (except for mikidymac) but I still got my hands on a new DESS post replacement ($130). Will try it tomorrow...

In the meantime, I got myself this:

IMG_1324.jpg

I may keep my old GTI if this quick fix works. However, just the responsibility insurance on it is worth $330. Makes no sense. And new one is $380. These are CDN dollars (75 cents in the US dollar). Still very expensive.

Benji.
 
That thing is awesome Benji!!!!
I wish you luck on the GTSi but I expect a full ride report and comparison to the old GTI asap.

Since you spend most of your time alone on low attendance lake I think you made the right choice.
 
See my other thread on the 4-tec forum. It is only a GTI 90 (new model launched last year) but it will do what I need. Engine is the 900. Basically it is a less powerful ski but will all the goodies of a bigger one (except for speed). I can expect 45 mph which is plenty for me.

I will be posting on this other thread as the burn-in period evolves.

Benji.
 
My Ford Focus 2003 air conditioning system broke last week...

My Sea-Doo 2003 broke last Saturday...

My Polaris Sportsman 2011 blew a gasket this morning... Oil was leaking from the top and fast. Lost half a quart in less than three minutes. Sent it to repair...

My Ford Escape 2014 AWD Turbo lost the ABS breaking system today...

And I lost a tooth filling when eating a ham sandwich (just after the ABS broke)!!! The icing on the cake...

Nothing ever breaks, right? LOL
 
Last edited:
My Ford Focus 2003 air conditioning system broke last week...

My Sea-Doo 2003 broke last Saturday...

My Polaris Sportsman 2011 blew a gasket this morning... Oil was leaking from the top and fast. Lost half a quart in less than three minutes. Sent it to repair...

My Ford Escape 2014 AWD Turbo lost the ABS breaking system today...

And I lost a tooth filling when eating a ham sandwich (just after the ABS broke)!!! The icing on the cake...

Nothing ever breaks, right? LOL

You better find a rock to crawl under until the black cloud passes by.

I hope you bought the extended warranty. For some reason it appears that the Sparl's are eating driveshaft splines so hopefully yours is different.
 
Me and extended warranties do not usually get along well. Most of the times, they pay less than what they charge...

As for the new ski, it is definitely GTI, not Spark. If it wasn't for the polymer bottom it would not have much in common with the Spark although the Spark and several models of GTI are sharing the same engine in different configurations.
 
Seems like I have fixed my old Sea Doo after all. I went on the lake with a friend yesterday with my two Sea Doo's and the old one worked OK. Seems like the problem was the DESS post. It is easy to replace.

Benji.
 
Ok so this issue is definitely fixed. Now question is, how long does a 787 engine lasts? I am going strong on 200 hours on the new engine (august 2015). How long these engines last with very easy usage (not pushing it) and great care?

BTW, I though acceleration was great on my 2003 GTI but I have to says that my GTI 2018 is kicking the 2003 fair and square. I don't know if this normal but if I go full throttle from idle on my 2003, there is a small lag of one second (changed the plugs with fresh ones and same result). If I press throttle slightly just before I go WOT, acceleration is much better. Is this normal behavior?

So I am now the happy owner of two working skis. Wish the insurance was cheaper: $350.00 (CDN dollars about $275.00 USD) per ski per year even if for just responsibility. I find that very expensive.

Thanks.

Benji.
 
Concerning the lag,/hesitation begin on the GTI, has it been doing this long term or did is just begin doing this? I've been chasing this problem on one of my 787s but it is a much older ski that yours.
 
I'd say long term but I wonder it is hasn't gotten a bit worse lately. Hard to say but if I press throttle hard there will be a one second lag time.
 
This is common on a carbed ski as there is a big change in vacuum when you nail the throttle and it takes time for it to start pulling fuel quickly.

As far as engine life, on a well maintained and reasonably ridden 787 you should get well over 400 hours. The key is fresh fuel, good API-TC full synthetic oil and fog after every ride.
 
Aside from fogging after every ride, I try to take great care of it. I was told I could sell it still for $2,000.00.

Benji.
 
A lazy way to fog it is to just hold the oil pump lever wide open when you are blowing the water out of the exhaust at the end of a ride.
 
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