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Re: 120 xr Sport Jet Problem -- jeff, 12:48:22 05/31/06 Wed
>>>I'm looking for a maintenance manual on a 96 sea
>rayder with a 120 xr sport jet motor? Any help on
>where to locate?
i have a 120 sport jet when running we lost power pulled out spark plugs one was smashed from what looks like the piston hit it has anyone had this problem?
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Re: 175 Sport Jet Problem -- Wayne Abercrombie, 12:12:29 10/01/02 Tue
>>Anyone experience a sudden loss of performance with no
>>warning? I run about for about 2 hours and suddenly
>>seems that I am running on 3 cyl's. W/o touching the
>>throttle, it goes from 2000 rpm to 3000 rpm and then
>>back again. Fuel in the inline canister (just
>>changed)looks clean. New plugs and the shop said it
>>ran like a new motor. They test with a water hose at
>>idle. Runs just as bad as before I took it in to the
>>shop. It is a '98 175 hp.
>
>When it does this, try UNPLUGGING the ECU on the
>starboard side of the engine. It's the electronic box
>with the big black plug on the front of it. The plug
>has a catch on the side you must unlock before it will
>unplug. The ECU controls the ignition boxes with
>overrev protection, overheat, no injection oil, the
>warning horn, etc. The service manual even tells you
>the engine will run without it. It won't have
>automatic enrichment without the ECU so warm up the
>engine before unplugging the ECU. Once the engine is
>warm, the ECU doesn't change the spark advance.
>
>My ECU failed and every time the boat went airborne
>the overrev circuit CUTOUT THE SPARK completely! Boat
>did some nasty, dangerous things. Unplugged the ECU
>and the problem went away. Replaced the ECU with an
>IMPROVED MODEL that even has a wire to clip so the
>damned oil injection horn stops beeping after you
>remove the oil injection system and things are fine
>now.
>
>Anyone keeping their SportJet should be running premix
>gas, anyway. I'm approaching 1000 hours on 40:1 Exxon
>or Texaco TC-W3 and have lost less than 5# of
>compression since new!
>
>Race ya to the seabouy....(c;
>Larry in Charleston SC
I have the 1999 Alumaweld Intruder 20' Sport Jet 175hp, I've been looking at the differences in the 210hp sport jet..? only looks like maybe a timing change to gain 250rpm and the impeller change out to a 4blade unit? anyone familiar with this? and where to buy the impeller if this is all that is different? thanks...
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Re: 175 Sport Jet Problem -- Pete, 11:17:29 10/14/02 Mon
Got to sportjetworld.com click on the forums and post this question there. Those guys know there stuff.
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Re: 175 Sport Jet Problem -- Russ, 13:30:04 07/10/03 Thu
>Got to sportjetworld.com click on the forums and post
>this question there. verhindert | hacker | Warez | Handy | SMS-Bomber | Mailbomber | Stars nackt | Titten | Those guys know there stuff.
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Re: 175 Sport Jet Problem -- Larry Warren, 19:31:36 06/19/06 Mon
I've got a 175 spotjet on a 18' aluminum riverboat. I'm having problems with it icing up. A milky oily gunk covers the carbs , when it plugs up. I've been running it in high humidity conditions. To un plug it I blow out the brass vent tubesin the barrel of each carb. Can you tell be the cause of this situation, and how can I prevent it.
Thanks
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