SPORTSTER ACCESSORY SLIP-ON MUFFLER KITS
J039712009-01-13
GENERAL
Kit Numbers
80502-07, 80503-07, 80726-09
Models
For the most up-to-date model fitment information, see the P&A Retail Catalog or the Parts and Accessories section of www.harley-davidson.com (English only).
WARNING
Rider and passenger safety depend upon the correct installation of this kit. Use the appropriate service manual procedures. If the procedure is not within your capabilities or you do not have the correct tools, have a Harley-Davidson dealer perform the installation. Improper installation of this kit could result in death or serious injury. (00333b)
NOTE
This instruction sheet references service manual information. A service manual for your model motorcycle is required for this installation and is available from a Harley-Davidson Dealer.
Additional Parts Required
Proper installation of these kits requires the separate purchase of two muffler clamps, Harley-Davidson Part Number 65283-94A
Kit Contents
See Figure 1 and Table 1.
PRODUCT INFORMATION
Tampering Prohibition
Federal law prohibits any modification to this exhaust system which causes the motorcycle to exceed the Federal noise standard. Use of the motorcycle with such a modified exhaust system is also prohibited.
Noise Emission Warranty
Harley-Davidson warrants that these mufflers, at the time of sale, meets all applicable United States E.P.A. Federal noise and Emissions standards. This warranty extends to the first person who buys these mufflers for purposes other than resale, and to all subsequent buyers. Warranty claims should be directed to an authorized Harley-Davidson Dealer.
NOTE
This product should be checked for repair or replacement if the motorcycle noise has increased significantly through use. Otherwise, the owner may become subject to penalties under state and local ordinances.
INSTALLATION
WARNING
To prevent accidental vehicle start-up, which could cause death or serious injury, disconnect negative (-) battery cable before proceeding. (00048a)
WARNING
Disconnect negative (-) battery cable first. If positive (+) cable should contact ground with negative (-) cable connected, the resulting sparks can cause a battery explosion, which could result in death or serious injury. (00049a)
1. Disconnect negative (-) battery cable.
WARNING
Perform this installation when the engine is cool. Working on or near the exhaust system when the engine is hot could result in severe burns. (00311b)
2. Remove mufflers using appropriate service manual instructions.
3. Discard gaskets and mufflers.
4. Install new gaskets on mufflers.
5. Slip muffler clamps on mufflers.
6. Loosely attach mufflers to the interconnect tube using existing screws and washers.
7. Position the ends of the front and rear exhaust pipes into front and rear cylinder heads and align exhaust system while tightening all nuts and bolts; begin at the cylinder head exhaust ports and work back toward the mufflers.
a. Finger tighten the upper nuts to the mounting studs.
b. Tighten the lower nut to 1–2.1 N·m (9–18 in-lbs).
c. Tighten the upper nut to 6.8–9 N·m (60–80 in-lbs).
d. Tighten the lower nut to 6.8–9 N·m (60–80 in-lbs).
8. Tighten the acorn nut on the rear exhaust pipe support clamp to 20.3–25.8 N·m (15–19 ft-lbs).
9. Tighten muffler clamps to 61–81.3 N·m (45–60 ft-lbs).
10. Tighten screws and washers to 20.3–25.8 N·m (15–19 ft-lbs).
NOTICE
Wipe all fingerprints off of exhaust system components after installation and before starting engine. Oil from hands can leave permanent marks on exhaust system finish. (00346a)
11. Wipe muffler clean of all fingerprints. Oil from hands will burn permanently into chrome finish.
12. Connect negative (-) battery cable.
SERVICE PARTS
Figure 1. Service Parts: Sportster Accessory Slip-on Muffler kits
Table 1. Service Parts: Sportster Accessory Slip-on Muffler Kits
Kit
Item
Description (Quantity)
Part Number
Kit 80503-07
1
Gasket (2)
65927-00
2
Shorty-Dual slash down mufflers (not shown)
  • Front
Not Sold Separately
  • Rear
Not Sold Separately
Kit 80502-07
1
Gasket (2)
65927-00
3
Shorty-Dual baloney cut mufflers
  • Front
Not Sold Separately
  • Rear
Not Sold Separately
Kit 80726-09
1
Gasket (2)
65927-00
2
Shorty-Dual slash down black mufflers (not shown)
  • Front
Not Sold Separately
  • Rear
Not Sold Separately
Items mentioned in text but not included in kit (Must be purchased separately).
A
Muffler clamp (2)
65283-94A