Technical Service Bulletin TT451 — 2007 HARLEY-DAVIDSON XL50
ENGINE
Bulletin Details
| TSB ID | TT451 |
| Manufacturer | |
| Vehicle | 2007 HARLEY-DAVIDSON XL50 |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
Noise from the cam chest area possibly accompanied by milky engine oil. Moisture can cause slight swelling in the tensioner causing it to stick in the housing. A vehicle that makes repeated short trips can have this condition because the engine does not reach normal operating temperatures, allowing condensation and moisture to build up in the engine oil.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.