Author Topic: Honda XR80 Piston Fitting ?  (Read 1096 times)

0 Members and 1 Guest are viewing this topic.

Offline mposs

  • B-Grade
  • ***
  • Posts: 242
    • View Profile
Honda XR80 Piston Fitting ?
« on: February 24, 2015, 06:59:59 pm »
Probably a dumb question but can anyone advise me on the correct direction the piston should face on a XR80. I am assuming that as the inlet valve is larger that the deeper valve recess in the piston should be on the inlet side, is this so ?? 


Offline mick25

  • Legend
  • *****
  • Posts: 1162
  • Hunter valley NSW
    • View Profile
Re: Honda XR80 Piston Fitting ?
« Reply #1 on: February 24, 2015, 07:34:59 pm »
I say you are right the way you said .
Looks like the valves are off sett so the head / valves should match the piston cut outs .
Sit the piston on the head and line up the cut outs to the valves this will tell you which way .
It's not a dumb question better safe than sorry
Some Pistons have arows showing which way they go , going off manuals .
The cam will tell you to the biggest lobe on the cam should match the biggest cut out on the piston .
« Last Edit: February 24, 2015, 08:05:02 pm by mick25 »