Cobra 6057 Manuel utilisateur

23801 E. La Palma Ave., Yorba Linda, Ca 92887 Ph. 714.692.8180 Fax. 714.692.5016

www.cobrausa-hd.com

11/17 ®

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION

CONTROLLED MOTOR VEHICLES.

Instruction Manual >

6057

Page 1 of 2

***NOTE: MUFFLER INLET GASKETS CANNOT BE REUSED. NEW GASKETS (HD PN# 65900017)

MUST BE PURCHASED BEFORE INSTALLATION.***

Read all instructions carefully and completely before installing your new slip-on mufflers.

1. Remove the front (lower) muffler first. Loosen the muffler clamp and remove the two bolts on the muffler mount.

Then slide the muffler backward off of the headpipe. Save the muffler clamp as it will be reused.

2. Remove the rear (top) muffler the same way. NOTE: If you cannot get the proper wrench to remove the rear

(top) bolts from the muffler mount bracket then remove the muffler and muffler mount bracket together as a unit

by removing the lower two bolts on the muffler mount bracket. See Figure 1. Once the muffler and bracket have

been removed from the motorcycle then detach the muffler from the bracket. Save the muffler clamp as it will be

reused.

3. If the muffler mount was removed then install the muffler mount back onto the motorcycle. Snug the bolts but do

not tighten at this time.

4. Position the stock clamps with hex head as shown in Figure 2 and slide them onto the slip-on mufflers.

5. Install new muffler inlet gaskets into the muffler inlets. See Figure 2. NOTE: MUFFLER INLET GASKETS

CANNOT BE REUSED. NEW GASKETS (HD PN# 65900017) MUST BE PURCHASED BEFORE

INSTALLATION.

Items Supplied >

1 –FRONT MUFFLER ASSEMBLY

1 –REAR MUFFLER ASSEMBLY

4- 1/4” X 3/4” HEX FLANGED BOLTS

NOTE: MUFFLER INLET GASKETS CANNOT BE

REUSED. NEW GASKETS (HD PN# 65900017)

MUST BE PURCHASED BEFORE INSTALLATION.

Application >

HARLEY:

SOFTAIL STREET BOB 2018

SOFTAIL LOW RIDER 2018

SOFTAIL SLIM 2018

SOFTAIL BREAKOUT 2018

SOFTAIL FATBOY 2018

Continued on Page 2

FIGURE 1

REMOVE MUFFLER

BRACKET BOLTS TO

REMOVE MUFFLER

AND BRACKET

TOGETHER.

FIGURE 2

ORIENT STOCK

CLAMPS WITH HEX

HEAD AS SHOWN

MUFFLER WITH LOGO IS

REAR (TOP) MUFFLER

MUFFLER INLET GASKETS

CANNOT BE REUSED. NEW

GASKETS (HD PN# 65900017)

MUST BE PURCHASED BEFORE

INSTALLATION.

23801 E. La Palma Ave., Yorba Linda, Ca 92887 Ph. 714.692.8180 Fax. 714.692.5016

www.cobrausa-hd.com

11/17 ®

Instruction Manual >

6057

Page 2 of 2

6. Slide the rear (top) muffler onto the head pipe first, then the front (bottom) muffler second, until the mounting

holes align. See Figure 3. NOTE: THE MUFFLER WITH THE COBRA LOGO IS THE REAR (TOP) MUFFLER.

7. Fasten the mufflers using the supplied 1/4” x 3/4” hex flanged bolts in the same manner as stock but do not

tighten. See Figure 3. Verify that the gap, where the mufflers meet the stock heat shields, is similar to the gap

the stock mufflers allotted.

8. Adjust the muffler mount bracket up or down so the mufflers are straight on the bike and then tighten the two

bolts on the muffler mount bracket. Tighten to factory specifications.

9. Check all clearances and alignments then tighten the clamps. (NOTE: The muffler clamps should be flush with

the end of the muffler when tightened. See Figure 4. If the muffler clamps are slid backward past the slots on

the muffler slip the clamps will not tighten the mufflers properly).

10. Tighten the mounting bolts to factory specifications.

11. IMPORTANT: Before starting your engine remove all fingerprints from chrome with a quality wax or chrome polish.

Failure to do so can cause chrome discoloration. Due to fluctuations in fuel delivery settings, timing, etc., Cobra

Engineering does not warrant against chrome discoloration.

12. Check the tightness of the button head bolts securing the core/tip to each muffler after the first ride, 100

miles, and every 500 miles after that.

DOCUMENT NO. 0018 REV. A

REPLACEMENT E-GLASS PACKING AND OPTIONAL 1¾” QUIET CORES MAY BE

PURCHASED THROUGH YOUR DEALER OR ONLINE AT WWW.COBRAUSA-HD.COM

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION

CONTROLLED MOTOR VEHICLES.

FIGURE 4

CLAMP SHOULD BE

FLUSH WITH EDGE

OF MUFFLER

DO NOT SLIDE CLAMPS

BACKWARD PAST SLOTS

CLAMP

SPACER

NOTE: SOFTAIL SLIM SHOWN. MUFFLER

POSITION VARIES DEPENDING ON MODEL.

FIGURE 3

SUPPLIED 1/4” X 3/4”

HEX FLANGED BOLTS

STOCK MUFFLER

CLAMPS

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