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Discussion
RCEXL ignitions compatabilities
I've been running a 3W 140 on a version 1 RCEXL with no problems but recently it started losing spark intermittently on one lead so I bought a replacement this time version 2 it produces spark on both plugs NGK CM6s but will not run the engine at all. At first thought it was a faulty unit but runs a mate's motor no problem and have also tried another version 2 on my engine and no go. Have tried different Hall sensors as well but as soon as I put "version 1" back on the engine it fires straight up, any ideas please
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Des Moines, Iowa USA
Joined Nov 2007
7,494 Posts
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Most of the time, when getting intermittent spark the problem is the insulation breaking down in the plug cap. You might be able to fix your V-1 ignition with a simple cap replacement.
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Look on the front of the ignition box and see what voltage it is rated for.
The newer ones are rated for 6-12 volts and you need use at least a two cell lipo or life battery Milton |
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Latest ones in the UK are labelled 4.8 -8.4V The 6-12V ones are not around here any more, I have tried a fully charged 2S lipo however and no joy. The version1 unit is labelled 4.8-6.0 V and works fine apart from dropping one cylinder so I've not used a lipo on that
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Buy a RCexl ignition tester. you can drive the ignition without the prop turning. I would wiggle wires while testing and see if there is an intermittent connection.
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