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Polaris Sportsman 400 User Manual

Polaris Sportsman 400
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Guide in
recess
ENGINE
3.67
CYLINDER INSTALLATION, CONT.
7. Apply a light film of oil to the threads and flange
surface of the cylinder mounting bolts.
8. Install all four bolts finger tight. Rotate the engine and
position the piston at BDC.
NOTE: If cam chain is installed, hold it up while rotating
the engine to avoid damage to the chain, drive sprocket
teeth, or tensioner blade.
9. T ightenthecylinderboltsinthreestepsinacrisscross
pattern and torque to specifications.
10. Install the two 6mm bolts.
CYLINDER HEAD INSTALLATION
Clean the gasket surfaces on the cylinder head and cylin-
der. Remove all traces of old gasket material.
Refer to disassembly photos.
1. Installthecamchaintensionerguide. Besurebottom
end of guide is located properly in crankcase.
2. Install the two dowel pins and a new cylinder head
gasket.
3. Placethecylinder headonthecylinder .Applyafilmof
engine oil to the cylinder head bolt threads and
washers, and hand tighten the bolts.
The following procedure must be used to torque the
cylinder head properly:
Cylinder Bolt Torque:
10mm - 46 ft. lbs. (6.348 kg-m)
6mm - 6 ft. lbs. (.828 kg-m)
Torque all bolts evenly in a criss cross
pattern
*Torque bolts to 22 ft. l bs. (3.04 kg-m)
*Torque bolts to 51 ft. l bs. (7.04 kg-m)
*Loosen bolts evenly 180° (1/2 turn)
*Loosen bolts again another 180° (1/2
turn)
*Torque bolts to 11 ft. lbs. (1.52 kg-m)
*From this point, tighten bolts evenly
90° (1/4 turn)
*Finally, tighten another 90° (1/4 turn)
*Install two 6mm bolts and torque to 6
ft. lbs. (.828 kg-m)

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Polaris Sportsman 400 Specifications

General IconGeneral
BrandPolaris
ModelSportsman 400
CategoryOffroad Vehicle
LanguageEnglish

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