Husqvarna 966451906 Manuale Utente

English - 

47

1.  Leakage, check not carried out.
2.  Too low octane fuel.
3.  Too low or incorrect oil in the fuel.

1.  Too much or incorrect oil in the fuel.

See Figure 63.

1.  Piston ring worn out.
2.  Oversized piston ring groove.

Oil the gudgeon pin bearing with two-stroke oil and 

insert it into the crank rod. See figure 64.

Replace the piston with the arrow facing the ex-

haust port, and slide in the gudgeon pin and fit the 

circlips. 

Use new circlips. See figure 64.

Oil the piston and piston ring with two-stroke oil.

Put a new cylinder base gasket in place. Compress 

the piston ring and carefully push the piston into 

the cylinder opening. 

Attach the cylinder. The screws must be tightened 

crosswise with a tightening torque of 8-10 Nm.

Repair Instructions

Fig 63

Fig 65

Fig 64

A

B