Intake Leak Test; General - Buell 2008 XB SERIES Electrical Diagnostics Manual

INTAKE LEAK TEST

GENERAL

NOTES
To prevent false readings, keep airbox cover installed
when performing test.
Do not direct propane into air scoop, false readings will
result.
LEAK TESTER
PART NUMBER
HD-41417 PROPANE ENRICHMENT KIT
Parts List
Standard 14 oz. propane cylinder.
PROPANE ENRICHMENT KIT (Part No. HD-41417).
12 in. (304 mm) long section of 1/4 in. (6 mm) diameter
copper tubing.
Tester Assembly
1. Cut rubber hose from kit to 18 in. (457 mm) in length.
2. See Figure 2-14. Flatten one end of copper tube to form
a nozzle.
3. Insert round side of copper tube into end of 18 in. (457
mm) tubing. See Figure
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Figure 2-14. Nozzle
TOOL NAME
2-15.
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1
3
2
1. Nozzle
2. Copper tubing
3. Hose
4. Valve
5. Knob
6. Propane bottle
Figure 2-15. Leak Tester
INTAKE LEAK TESTING
Do not allow open flame or sparks near propane. Propane
is extremely flammable, which could cause death or ser-
ious injury. (00521b)
1. Start engine.
2. Warm engine to operating temperature.
3. See Figure 2-15. Turn knob (5) counterclockwise to open
propane bottle.
Do not direct propane stream toward front of engine. If propane
enters Air Cleaner, a false reading will be obtained.
4. See Figure 2-16. Aim nozzle toward possible sources of
leak such as Fuel Injectors and intake tract.
5. See Figure 2-15. Push valve (4) to release propane. Tone
of engine will change when propane enters source of leak.
6. Note which components fail the intake leak test, for further
servicing.
2008 Buell XB Diagnostics: Engine Management 2-21
NOTE
2.9
4
5
6