Head bolts ZXR250

[Stevezxr]

Just a quick question
What torque do the head bolts get tightened to on a ZXR250 1990

The manual says 18nm but thats only 13 foot pounds thats not enough to seal a head i can tighten that by hand almost

[g0zer]

what size and type of bolts are they?

[Frogger]

go by the manual it is ... the manual after all. i did on mine and it was ok. remember there are more then just 1 bolt. also if u need spare bolts im sure i have some in my pile of stuff in the shed.

[kessen]

You're talking about the 7mm OD one yeah? I'll second that, go by the manual. It's an Al block remember.

[Paraletic]

have another look, that may be the initial tourque. should be done in 2 or 3 stages to reach full tourque. you are correct that is quite loose, considering standard tourque for a m8 thread is 21 +/- 5 ft/lb.

[Stevezxr]

bump

[Goldmember]

This looks open to me












jks mate