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Matt DiBenedetto
Joined: 06 Feb 2013
Posts: 3
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 Posted: Tue Feb 12, 2013 2:18 pm Post subject: mychron 4 not correctly reading temp or lap times |
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Hey guys, i have a 125 leopard tag kart and my mychron 4 isnt reading my water temp correctly. when its at idle it reads it just fine but if on track or under any throttle the temp bounces all over the place and doesnt read right. the sensor is in the cylinder head.
Also it wont read my lap times and i know the track beacon is working and i tried a new beacon/sensor thing on my kart and its plugged in and facing the right way and all. Let me know if anyone has any ideas to help me on either! Thanks! (I'm most concerned about the temp) |
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Dave Hall 71
Joined: 11 Jul 2012
Posts: 2
Location: United States, Arizona,
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| Posted: Tue Feb 12, 2013 2:52 pm Post subject: |
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| Had the same problem with mine and it was actually a bad cable. Try that 1st, if that doesn't work send it to Robbie at AIM and they'll turn it around to you in less than a week usually. |
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Matt DiBenedetto
Joined: 06 Feb 2013
Posts: 3
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| Posted: Tue Feb 12, 2013 3:21 pm Post subject: |
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| Dave Hall 71 wrote: | | Had the same problem with mine and it was actually a bad cable. Try that 1st, if that doesn't work send it to Robbie at AIM and they'll turn it around to you in less than a week usually. |
thanks i appreciate it! i will give that a try first and see if it does the trick |
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TJ Koyen
Joined: 03 Oct 2004
Posts: 1425
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| Posted: Tue Feb 12, 2013 10:58 pm Post subject: |
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Check your settings to make sure your minimum lap time is set appropriately so it isn't throwing out all your laps.
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T.J. Koyen
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DB Motorsports
Exprit/Leopard |
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Keith Buffo
Joined: 30 Nov 2007
Posts: 307
Location: United States, Massachusetts, Stoneham
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Mike McKnight
Joined: 12 Aug 2001
Posts: 203
Location: United States, Virginia, Roanoke
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| Posted: Wed Feb 13, 2013 1:11 pm Post subject: |
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Regarding the temperature make sure you dont have the RPM and temperature wires run together. That may cause erratic temp. The lap timing issue could be a bad receiver or loose 4 pin on the circuit board. We would be happy to look at your gauge if you want to send it to us for inspection.
Mike |
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Tanner Berryhill
Joined: 31 Jan 2013
Posts: 1
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| Posted: Tue Mar 12, 2013 10:58 am Post subject: |
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| From my professional experience with go kart racing and your diagnosis, it sounds like you have an engine that is about to blow up... Might want to check that out. |
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Doug Ring
Joined: 30 Jul 2001
Posts: 1808
Location: United States, California, San Diego
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| Posted: Tue Mar 12, 2013 11:04 am Post subject: |
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This could easily be a wire/connector problem. The Leopard vibrates a lot at speed, and the track will also impose a lot of vibration. I have connectors with the old-style yellow prong plug, and the wires routinely break due to vibration. Wild swings in readings points to the wire or the sensor.
As Mike noted, the beacon pickup wire should be routed separate from the engine wires. Are you plugging the beacon pickup directly into the back of the M4 gauge, or into an expansion box? - I have found that it doesn't work when plugged into the expansion box, it must be plugged directly into the back of the M4 (middle connector, as I recall). |
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Chris Parks
Joined: 09 Sep 2001
Posts: 1504
Location: Australia, not USA state,
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| Posted: Wed Mar 13, 2013 1:29 am Post subject: |
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| Doug Ring wrote: | | I have connectors with the old-style yellow prong plug, and the wires routinely break due to vibration. |
This problem is easily avoided with a bit of planning, we have never broken a wire in 14 years of Mychron use.
Anchor each plug half separately to a support like a seat strut with TWO zip ties, one each half. Now zip tie the cables where they exit each plug to the seat strut as well, this stops any cable movement and breakage.
_________________
understeer happens on road courses and usually is pronounced with a British accent. Push happens on ovals and usually is pronounced through a wad of chew. Other than that, I don't think there's a difference - Jim Derrig
Chris |
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