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Old 02-14-2009, 10:42 PM
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Engine Alarm 2005 MC PS197 MCX 300hrs

Today, while "pulling up" a skier during our 2d set, the engine suddenly reduced RPMS and the audible engine alarm came on. A quick scan of the engine gauges appeared normal in idle...eng temp 160 degrees, oil pressure 40 PSI, battery voltage ~14 volts, and 3/4 tank of gas. The multifunction gauge said "check engine"; not sure if it was going to show anything else since I was in hurry to turn off the engine.

I visually checked the engine oil, transmission fluid, which were fine, and felt the engine block which was warm, not hot (water around 65 degrees). Started it back up and pulled another set w/o any problems. Did notice the oil pressure gauge read about 65-70 PSI at 34mph. Couldn't remember if that was a normal reading or not; still read 40 PSI at idle.

According to the owners manual, the multifunction gauge will display messages for low battery voltage and oil pressure, high engine temperature and transmission...VOLT, OIL, TEMP, TRAN. Couldn't find anything that discussed what "check engine" meant.

Since the last time out, the only mx I had performed was the installation of a raw water strainer. The time before that I changed the oil and oil filter. Not sure any of those items
are relevant.

tks, for any thoughts...mac
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  #2  
Old 02-14-2009, 11:07 PM
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Could be a low voltage alarm, but the reduced RPM's is a concern. Make sure your Drive by wire plug is firmly attached. It's a big plug near the flame arrestor. We have a V-drive and ours gets wiggled loose walking on the sunpad, causing check engine alarm.
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Old 02-15-2009, 11:13 AM
snork snork is offline
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Maybe internal clock squawking @ 200 hrs and 300 hrs. Manufacture want you to bring it in for a checkup
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Old 02-15-2009, 11:35 AM
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Make sure the raw water path is clear and the impeller is good. RPM reduction is caused by only a couple of things and overheating is one of them.
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Old 02-15-2009, 11:59 AM
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Check the trans cooler while your at it for a clog.
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Old 02-15-2009, 02:04 PM
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Dumb ? but is it possible that your newly installed raw water filter could be installed backward reducing the water flow to the engine?
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Old 02-15-2009, 04:17 PM
scramison scramison is offline
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Quote:
Originally Posted by André View Post
Dumb ? but is it possible that your newly installed raw water filter could be installed backward reducing the water flow to the engine?
doesn't sound dumb. He probably has some water flow issues

The temp guage only tells you radiator temp on a car but since we have no radiator what exactly is this guage measuring?

Wahoo post 100!

Last edited by scramison; 02-15-2009 at 07:37 PM.
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Old 02-15-2009, 04:21 PM
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Appreciate everyone's thoughts thus far...
- An internal 100hr mx clock would be new to me; the engine actually has 307 hrs and I don't remember having any alarms at 200 hrs
- The DBW plug seems fine
- Battery voltage is 12.75 engine off and 14 volts engine running
- Water impellor is good
- Found a little bit of debris in the transmission cooler
- The installation of the raw water filter appears correct...arrow on filter pointing in the direction of water flow to the engine (pic attached to make sure)

I'm pretty sure it was not a overheat condition; as soon as the alarm went off, I checked the engine temp gauge first which showed 160 degrees.

Any thoughts on the oil pressure reading 65-70 PSI @3600 RPM. Is this normal? Would high oil pressure activate the alarm?

Keep the suggestions coming...tks, mac
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Old 02-15-2009, 07:30 PM
scramison scramison is offline
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I think that voltage is a little low...when the engine is off. Sounds like your alternator is working well but your battery is struggling. Your battery should be above 13v per this post
http://www.mastercraft.com/teamtalk/...11&postcount=2

Also per a bike forum I visit regularly it should be above 13 volts:
http://www.1000rr.net/forums/showthr...attery+voltage

There really isn't much on this forum about correct battery voltage but take it into any battery distributor and they can test it with a load which will be a more accurate test.

Edit: Now Im not so sure does anyone know what the correct battery voltage is?

In this post the guy's voltage reads the same as yours:
http://www.mastercraft.com/teamtalk/...attery+voltage

Last edited by scramison; 02-15-2009 at 07:36 PM.
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  #10  
Old 02-17-2009, 04:04 PM
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Bump


No one wants to take a stab at this?
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