Ski-Doo Ski Doo MX Z 2005 [1091/1429] Inspection

Section 04 ENGINE (4-TEC)

Subsection 05 (CYLINDER AND CYLINDER HEAD)

R1004motr96A

1. Valve spring compressor clamp (P/N 529 035 764)

2. Valve spring compressor cup (P/N 529 035 724)

R1004motr97A

LOCATE VALVE SPRING COMPRESSOR CLAMP IN

CENTER OF THE VALVE

Remove valve cotters no. 19.

Withdraw valve spring compressor, valve spring

retainer no. 18 and valve springs.

Inspection

Check valve springs for rust, corrosion or other

visible damages. If so, replace valve springs.

Check valve springs for free length and straight-

ness.

Replace valve springs if not within specifications.

R1004motr98A

A. Valve spring length

VALVE SPRING FREE LENGTH

OUTER VALVE SPRING

NOMINAL (NEW) 45.45 mm (1.789 in)

SERVICE LIMIT

43 mm (1.693 in)

INNER VALVE SPRING

NOMINAL (NEW) 41.02 mm (1.615 in)

SERVICE LIMIT 38.80 mm (1.528 in)

Installation

For installation, reverse the removal procedure.

Pay attention to the following details.

NOTE: Colored area of the valve spring must be

placedontop.

If the color cannot be identified any more, orienta-

tion is possible, based on the shape of the spring.

The spacing of the coils is smaller at one end. At

installation, this end must be directed towards the

cylinder head.

NOTE: Valve cotters must be properly engaged in

valve stem grooves.

224 mmr2005-025