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Header Pipe Nut Torque

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Old Aug 25, 2012 | 06:54 AM
  #1  
btmonnat's Avatar
btmonnat
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From: Castorland NY 13620
Default Header Pipe Nut Torque

I am changing my header pipe on my 2012 roadking. It looks like it is a 1/2'' nut. Can anyone tell me what these nuts should be torqued at. I am trying to cut down on some of this expensive labor,but I do leave the service intervals up to my local dealers. Thanks to all in advance.
 
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Old Aug 25, 2012 | 07:07 AM
  #2  
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Airborne350G
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From: Living in open carry state :D
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It is a two step process:

First 9-18 inch lbs
Final 109-120 inch lbs
 
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Old Aug 25, 2012 | 07:07 AM
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From: Sunny South FL
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There should be Instructions with your new Exhaust. But here is what the service manual says for an 09 thats the newest manual I have.

SYSTEM INSTALLATION
1. If removed, install transmission exhaust bracket (12) and
tighten fasteners (9) to 84-132
in-lbs (9.5-14.9 Nm).
2. Install
new gaskets in both the front and rear cylinder head
exhaust ports with the tapered side out.
3. Place exhaust header pipe into position on motorcycle
and start two exhaust flange nuts to secure front header
pipe to studs of front cylinder head.
4. See
Figure 4-41. Roll pipe into position at rear cylinder,
making sure welded bracket on header pipe is below the
side exhaust bracket (18).

HOME
4-34 2009 Touring Service: Fuel System
5. Start two exhaust flange nuts to secure rear header pipe
to studs of rear cylinder head.
6. Secure header pipe to side exhaust bracket (18) with
carriage bolt (16) and flange nut (21). Do not tighten at
this time.
7. Slide
new clamp (4) onto crossover pipe.
8. Install
new gasket (5). Twist and push crossover pipe (8)
onto exhaust header pipe.
9. Install exhaust support clamp (7) and secure with fastener
(6). Do not tighten.
10. Install mufflers. See
4.19 EXHAUST SYSTEM, Mufflers.

NOTE
Verify that the exhaust pipes do not contact the motorcycle
frame or any mounted components.
11. Tighten the exhaust system as follows:
a. Tighten the top nut of the front cylinder head exhaust
flange to 9-18
in-lbs (1-2 Nm). Tighten the bottom
nut to 100-120
in-lbs (11.3-13.6 Nm). Final tighten
the top nut to 100-120
in-lbs (11.3-13.6 Nm).
b. Tighten the bottom nut of the rear cylinder head
exhaust flange to 9-18
in-lbs (1-2 Nm). Tighten the
top nut to 100-120
in-lbs (11.3-13.6 Nm). Final tighten
the bottom nut to 100-120
in-lbs (11.3-13.6 Nm).
c. Tighten flange locknut (21) to 20-25 ft-lbs (27.1-33.9
Nm).
d. Tighten crossover pipe clamp (4) to 25-30 ft-lbs (33.9-
40.7 Nm).
e. Tighten fastener (6) to 14-18 ft-lbs (19.0-24.4 Nm).

NOTES
Verify that the heat shields do not contact the motorcycle
frame or any mounted components.

See Figure 4-42. Install crossover pipe heat shield with
the longer straight portion toward the muffler.

12. Install heat shields. Position each worm drive clamp so
that screw is on the outboard side in the most accessible
position and tighten to 20-40
in-lbs (2.3-4.5 Nm).
13. Connect O2 sensor connectors and install
new cable
straps to secure front connector to back of cross brace.
14. On HDI models, connect cable to exhaust valve actuator
as follows:
a. Install cable clip onto slotted flange at front of active
exhaust valve.
b. Push cam rearward and install ball end of cable into
slot.Verify that cable is properly seated in channel of
active exhaust valve.
15. Install right side front footboard and brackets. See

2.52 FOOTBOARDS AND FOOTRESTS, Rider Footboards
.
16. Install seat. See
2.28 SEAT.

17. Install saddlebags. See
2.29 SADDLEBAGS.
 
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Old Aug 25, 2012 | 07:12 AM
  #4  
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dansflhti
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Joined: Feb 2007
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From: usa
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According to my 09 service manual.
Front cylinder,tighten top nut to 9-18 in-lbs,bottom to 100-120 in-lbs,then top to 100-120 in-lbs.
Same for the rear,but start with the bottom nut.
 
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Old Aug 25, 2012 | 08:00 AM
  #5  
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lionsm13
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From: Western South Dakota
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Good info..
 
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