Tune- Up Specifications
| |
| TYPE |
| 1966 - 1974 | HD no. 3-4 |
| 1975 - 1976 | HD no. 5-6 |
| 1977 - 1979 | HD no. 5A6 ( standard ) or HD no. 5R6 ( resistor ) |
| 1980 - on | HD no. 5R6A or HD no. 5RL |
| GAP | |
| 1966 - 1969 | 0.025 - 0. 030 in. ( 0.63 - 0.76 mm ) |
| 1970 - early 1978 | 0.028 - 0. 033 in. ( 0.71 - 0.84 mm ) |
| Late 1978 - on | 0.038 - 0. 043 in. ( 0.96 - 1.09 mm ) |
| Spark Plugs Recommended are Harley Davidson Brands |
| |
| 1966-1969 | |
| Breaker Point Gap | 0.020 in. ( 0.51 mm ) |
| Dwell Reading | 90 degree @ 2,000 rpm |
| Ignition Timing
Retarded
Automatic |
5 degrees BTDC
35 degrees BTDC
|
| 1970 - Early 1978 | |
| Breaker Point Gap | 0.020 in. ( 0.51mm ) |
| Ignition Timing
Retarded
Automatic |
5 degrees BTDC
34 degrees -36 degrees BTDC
|
| late 1978 - on | |
| Ignition Timing Air Gap
Late 1978-1979
1980 - on |
0.004 - 0.006 in. (0.102 - 0.152mm )
No Adjustment
|
| Ignition Timing | Electronic |
| Compression | |
| Standard
1966 - early 1978
Late 1978 - 1984 |
90 psi or over ( 6.33 kg/cm2 or over )
100 psi or over ( 7.03 kg/cm2 or over )
|
| Acceptable Variance Between Cylinders
1966 - early 1978
Late 1978 - 1984 |
29 psi or less ( 2.04 kg/cm2 or over )
10 psi or less ( 0.70 kg/cm2 or over )
|
Recommended Lubricants and Fluids
| |
| Brake Fluid
Through 1975
1976- on |
DOT 3
DOT 5
|
| Fork Oil
1966 -1969
1970 - on |
HD Hydra-Glide fork oil
HD Type B
|
| Battery top up | Distilled Water |
| Transmission | HD Transmission Lubricant |
| Primary Chaincase | HD Primary Chaincase |
| Engine Oil
Below +40 degrees F
40-60 degrees F
+60 degrees F and up
+80 degrees (severe operating conditons)
10-90 degrees F (normal operating conditions) | HD Special Light
HD Medium Heavy
HD Regular Heavy
HD Extra Heavy Grade 60
HD Power Blend Super Premium |
| Lubricates recommended are Harley Davidson Brands |
