Daytona Twin Tec
Daytona Twin Tec Internal Ignition Kit
for 1984-99 Evolution Big Twin, 1970-
84 Shovelhead Big Twin and 1971-97
Sportster models. Kit includes ignition, coil
and spark plug wire set.
VT No. Item
As Above, ARB compliant E.O. No.
D-641- and D-641-2
Twin Tec Internal Ignition for 1970-99 mod-
els. Two advance curve families with adjust-
able advance slope accommodate stock to
highly modified engines. It features digitally set
RPM Limit (100 RPM Steps) and selectable
single or dual fire mode. Coil outputs are pro-
tected against short circuits.
VT No. Item
32-3053 As Above ARB E.O. No. D641-1
32-2013 3 Ohm Coil Single Fire
Volt Tech Ignition Systems fit all 1970-98 carbureted mod-
els and requires sensor cup for 1982 and earlier applications.
Order tach interface, sensor cup and screw separately if
Note: Order Coils When Required.
VT No. Fits
32-9500 Single Fire Ignition fits Evo, Shovel and Sportster to
1997. It can be set for Street or Race-Electric or
Kick Starter includes rear cylinder timing adjustment
for rate of advance. Compatible w/single fire coils.
32-9503 Single Fire Ignition Kit fits As Above
Includes coil and 8.5mm wires.
32-0588 8.5mm Wire Set
Crane Hi-4 Replacement Rotors.
VT No. 32-9292
Timing Plugs are available in stock size ⁵⁄₈ — 18 thread unless
noted as oversize (O.S) which is ¹¹⁄₁₆ — 16 thread.
A. Acorn style plug fits all models Big Twin models timing plug
holes and oil tanks.
B. Acorn style plug with oversize thread and one tap for reth-
reading stripped out timing hole. Fits all timing holes.
Plug and Tap (Oversize)
Plug Only (Oversize)
”—16 Tap (Oversize)
C. Stock timing plug.
Parkerized as above, ⁷⁄₈” Hex
As above cadmium
D. Functional and custom design plug fits all Big Twin models
and Sportster timing plug holes and oil tanks.
E. Allen style plug use on all 1970-84 replaces 720.
37-9206 Chrome by Gardner-Wescott
Daytona Twin Tec External
Ignition Kit for 1970-84 FL and
1971-84 FX models. Dual fire elec-
tronic ignition system which includes
trigger rotor for mechanical advance
mechanism. Features a digital set
RPM limiter in 200 RPM steps from
5,200 to 7,000, status LED for stat-
ic timing, electronic dwell for maximum ignition energy at high
RPM, reduced current draw at low RPM, and a simple two wire
hook up. Reliable starting in all conditions by operating down to
below 6 volts, and is rated to operate at 260°F.
VT No. 32-1036
Single Fire: Just the spark plug for the piston that is in its compression stroke will be fired.
The other piston, being in its overlap position will not be ignited.
Dual Fire: Both spark plugs are fired simultaneously at the time only one piston is in its com-
This is the way the stock motor works on pre TC-88 motors.
Single Plug: One spark plug in each head. Total of 2 spark plugs in one engine.
Dual Plug: Two spark plugs in each head. Total of 4 spark plugs in one engine.
V-Tech Ignition Kits are available in dual fire where there
are 2 sparks at the same time and
single fire where there is
1 spark for each cylinder when it is fired, (separate). Each kit
includes a mechanical advance unit and all hardware. Order
coil separately 32-0467 coil has 2 separate coils inside to fire