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Yamaha torque settings

butty99

New member
Hi Ive got a 96 v4 yamaha 115hp and wondering about torque settings on various sections ?

1.Thermostat torque in nm( they both have cracked near the number 1 bolt ????)
2. Waterpump housing in nm
3. Cylinder head section, with head gasket in it in nm

Ive read somewhere that they show the torque on the casing somewhere ?It also has numbers on the bolts ie thermostat bolts have 8 - does this mean 8nm torque, so start with 4 nm follow the sequence, then tighten to 8 nm ????

confused please help
thanks guys
 
The number on the bolt has nothing to do with the torque setting. It denotes the size of the bolt in mm.

The torque values are listed in the applicable service manual. In Nm and lb-ft.

Some heads will show the torque sequence. Most two heads are torqued twice. Once to an initial value and then a second time to the final value.
 
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