Header Pipe Nut Torque
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Joined: Jan 2012
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From: Castorland NY 13620
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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Joined: Jul 2011
Posts: 94
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From: Sunny South FL
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.
17. Install saddlebags. See 2.29 SADDLEBAGS.
SYSTEM INSTALLATION
1. If removed, install transmission exhaust bracket (12) and
tighten fasteners (9) to 84-132
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).
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
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.
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.
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
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).
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.
frame or any mounted components.
See Figure 4-42. Install crossover pipe heat shield with
the longer straight portion toward the muffler.
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
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
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.
16. Install seat. See 2.28 SEAT.
17. Install saddlebags. See 2.29 SADDLEBAGS.
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