General
Danger! Propane is an extremely flammable liquid and vapor. Vapor may cause flash fire. Keep away from heat, sparks and flame. Keep container closed. Use only with adequate ventilation.
Warning! Read all directions and warnings on propane bottle. Failure to follow all directions and warnings on bottle could result in death or serious injury.
- To prevent false readings, keep airbox cover installed when performing test.
- Do not direct propane into air horn, false readings will result.
Leak tester
Parts list
- Standard 14 oz. propane cylinder.
- Snap-on YA7148 Propane Enrichment Kit.
- 304 mm (12 in.) long-6 mm (1/4 in.) diameter copper tubing.
Tester assembly
1. Cut rubber hose from kit to 457 mm (18 in.) in length.
2. See Figure 9-22. Flatten one end of copper tube to form a nozzle.
![](https://motoinstruction.ru/img/harley/2/111281.jpg)
Figure 9-22. Nozzle
3. Insert round side of copper tube into end of tubing.
Intake leak testing
1. Start engine.
2. Warm engine to operating temperature.
3. See Figure 9-23. Turn knob (5) counterclockwise to open propane bottle (6).
![](https://motoinstruction.ru/img/harley/2/111282.jpg)
Figure 9-23. Leak tester: 1. Nozzle; 2. Copper tube; 3. Hose; 4. Valve; 5. Knob; 6. Propane bottle
Danger! Propane is an extremely flammable liquid and vapor. Vapor may cause flash fire. Keep away from heat, sparks and flame. Keep container closed. Use only with adequate ventilation.
Note. Do not direct propane stream toward front of engine. If propane enters air horn, a false reading will be obtained.
4. See Figure 9-24. Aim nozzle toward possible sources of leak such as fuel injectors and intake tract.
![](https://motoinstruction.ru/img/harley/2/111283.jpg)
Figure 9-24. Checking for leaks
5. See Figure 9-23. Push valve (4) to release propane. Tone of engine will change when propane enters source of leak.