COMPUFIRE SKU: 139-10007

Compufire Elite Ignition Module - KIT Single/Dual Fire KS HI Perf.`1970-1999 BT… — Harley-Davidson (1970-1999)

$417.95
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Compufire Elite ignition module for V-twin motorcycles, featuring selectable advance curves and adjustable RPM limiter with all electronics housed under the timing cover. Made in the U.S.A. and compatible with 1970-1999 Harley Big Twin carbureted models.

Features

  • All electronics mount under timing cover
  • 8 selectable advance curves in single or dual fire mode
  • Adjustable RPM limiter
  • Static timing LED light for installation
  • Made in the U.S.A.
  • Not for EFI or Sportster S models

Specifications

  • Brand: Compufire
  • Manufacturer Part #: 21835-KS
  • UPC: 694342547691
  • Dimensions: 5 in L × 2 in W × 8 in H
  • Weight: 1 lbs

Fitment

Fits 1970-1999 Harley-Davidson Big Twin carbureted models. Not compatible with EFI systems or Sportster S models.

Frequently Asked Questions

Will this work on my EFI Harley?

No — this module is for carbureted V-twins only. EFI models require a different ignition system.

Can I use this on a Sportster S?

No — this ignition is not compatible with Sportster S models.

Do I need special tools to install this?

No special tools required. The included static timing LED light makes installation straightforward for carbureted Big Twin motors.

What are advance curves and why are they selectable?

Advance curves control spark timing across the RPM range. Eight selectable curves let you dial in the ignition curve that works best for your engine and fuel.

Where does the module mount?

All electronics mount under the timing cover for a clean, original appearance.

BRANDCompufire
TYPEElectrical
SKU139-10007
WEIGHT1.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.8
5 RATINGS
5★ 4
4★ 1
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Jun 10, 2021

Great the one it replaced lasted 10 years hopefully this one will do the same have been out already will be doing the same again this Saturday great service free baseball hat would’ve been a nice touch your stickers are all over the bike where harley would’ve been thanks again

— Anonymous
✓ VERIFIED
Apr 7, 2020

Great ignition system..4 star rating because the rotor washer was missing

— Anonymous
✓ VERIFIED
Sep 26, 2014

Works great so far

— Anonymous
✓ VERIFIED
Jun 11, 2013

Put this on my bike and it runs perfect again. Very easy to install.

— Anonymous
✓ VERIFIED
Mar 15, 2012

Easy installation and no problems getting it set up

— Anonymous