12 Volt Roadster DT400 D&E Electronic Ignition

£249.50 Incl. VAT

In stock

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RMK Electronic Ignition Kit Fitting Guides


Fully featured yet affordable ignition & generator up-grade for DT400, 1977 & 78 models. Our new billet stator with precision location ensures perfect ignition timing, so there is no need to carry out any timing set up. Fit and go! Our modern 12 volt electrics are native to the Yamaha electrical system, designed to plug in with minimal fuss. A stock Yamaha wiring loom is needed and occasionally it is found some terminals should be replaced due to wear, damage or previous replacement, full details & parts required supplied.

This kit is great solution to replace the ageing OEM generators.  You can fit this kit with confidence that there are no tricky adjustments or wiring to do. Rex has developed this system over many years, refining it to a standard few can match. It is has been made to ensure fitting is straight forward with minimal tooling needed (a flywheel extractor is required).

The generator is the heart of your bike’s electrical system and we believe the RMK-12 (12 volt) system is an unbeatable choice in terms of performance, compatibility and reliability. We develop and manufacture our own ignitions here in the UK so we can bring you performance that betters the original Yamaha equipment at an affordable price.

We’ve taken the time to check our parts fit and work correctly with the bike’s electrical system. Our technicians have worked to ensure the least number of tools are needed*. The 12 volt stator plugs directly in to standard wiring looms, you won’t even need a timing light!

Requires flywheel to be stamped F3T350


DT400 D & E 1977 & 1978

  • Requires no timing adjustment, no timing light – simply bolt on and go.
  • Roadster performance electronic ignition – does not need a battery
  • Simple to fit with clear pictorial fitting guide
  • New billet stator, heavy duty & CNC machined
  • CDI unit fits original holder
  • Ignition & kill switch work as before
  • Modern timing gives crisper performance
  • Full technical backup from the system designers via e-mail

The kit contains; a new 12 volt stator and ignition source coil, 12 volt lighting coil, electronic ignition unit, new HT coil, voltage regulator & fitting manual.

Not included: Battery, bulbs, 12V horn and indicator relay.

*Kit requires a completely standard loom with all its correct connectors.

Engines that have been  bored out or those that have been significantly tuned will need a slotted stator to allow the base timing to be dialled in to suit the different state of tune. See kit RMK-13 for adjustable Full Race ignition.

Additional Information

Weight 1.3 kg
Country Of Origin

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