ATC 70 engine in a TRX 70 will the electronics match up - Honda TRX Forums: Honda TRX 450R Forum

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Old 07-13-2007, 12:38 AM   #1 (permalink)
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I received a TRX 70 free. The gear box is a mess, no spark, and low compression. I got a good deal on an ATC 70 complete engine. Will the ATC 70 engine work with the TRX?
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Old 07-13-2007, 02:49 AM   #2 (permalink)
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Quote:
I received a TRX 70 free. The gear box is a mess, no spark, and low compression. I got a good deal on an ATC 70 complete engine. Will the ATC 70 engine work with the TRX?[/b]
yes they are the same. man i ish i could get one for free I have two but i have paid good money for them ...
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Old 07-13-2007, 08:12 AM   #3 (permalink)
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Maybe if you swap the whole engine. The trx has the gears up and the atc has them down.

the trx ignition is electronic and the atc is breaker point.

I know because I fixed my nephew's 1985 atc 70 that didn't have spark and tried to compare it with my sons 1986 trx 70 and came to find out that the atc had points.

It was nice, all the atc needed was to clean and adjust the points for it to work.


There is a possibility that the atc motor was from an older model year that could have been change in the past. But I doubt it!





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Old 07-13-2007, 12:46 PM   #4 (permalink)
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Yep, all the ATC70s had points type ignition. The TRX70 had a CDI ignition.
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Old 07-14-2007, 01:40 AM   #5 (permalink)
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I am not familiar with an ATC 70 breaker points ignition system in place of a CDI. What electrical parts will I need to go along with the engine in order for it to work.
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Old 07-14-2007, 07:27 PM   #6 (permalink)
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I don't think you need anything more. You just have wires for the on/off switch and the coil. It should be an easy swap.
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