HewTech Electronics is offering A POLARFIRE Replacement FIREPLUG CDI for the 73~78 Ski-Doo & Moto-Ski’s ignitions.
The CDI redesign using the single-coil was the result of issues found on 77/78 models. We’ve determined the cause and changed the CDI design to cover all PolarFire years from 73-78 models. We also took the opportunity to integrate a single-coil design which increased the quality as well as the spark energy output!
The Single-Coil model includes 2 spark plug wires (plug wires can go to either cylinder).
CDI mounts in original factory location using original factory connector.
No splicing, alternate mounting or re-wiring necessary.
FIREPLUG Includes a separate Kill-Switch wire (BLACK/WHITE) for common 2-wire tether switch connection (ground the wire through tether or kill-sw to stop spark). This wire can be left hanging loose (no connection) if using the original 3-wire kill-switch or key-switch. No additional wiring is necessary.
NOTE: Suggest using resistor BR8ES-BR9ES spark plugs. This will extend the life of the coil, also some Digital tach’s require the use of a BR-resistor plugs to eliminate erratic display operation due to EMI interference.
POLARFIREPLUG CDI AVAILABLE FOR 73~78 ROTAX:
- 1973~1975 TNT-F/A & 75 Everest
- 1975 RV245
- 1976 RV250 & RV340 (RV345)
- 1977 RV340
- 1978 RV/Sonic models that use PolarFire CDI
BEST WARRANTY IN THE INDUSTRY!
Uses original Factory 3-wire AND/OR attach any standard 2-wire kill-switch!
TECHNICAL PROBLEMS
STILL NO-SPARK?
Verify that the chassis to engine (bonding) wire is connected & in good condition. Without this wire connection, the FIREPLUG CDI may not spark or operate correctly. Coil requires chassis/engine being grounded together.
