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Head Swap Yamaha Majesty 250 scoot

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wots
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Joined: 30 Aug 2012
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PostPosted: 13:25 - 06 Aug 2015    Post subject: Head Swap Yamaha Majesty 250 scoot Reply with quote

Replacing cylinder head on Yamaha Majesty 250, replacing as one of the studs snapped, too short, can't drill. Managed to get a good replacement head for £35 delivered.

As it's a single cylinder, I think ...

1) Whip off carb and ancillaries, it's liquid cooled.
2) Undo tensioner
3) Remove chain sprocket and allow chain to slip off
4) Undo head in right order.
5) Remove head
6) Clean faces and fit new gasket
7) fit head and guide chain through

Then reverse etc.

Where will the bottom end timing mark be? I haven't looked as yet, wanted to ask before I start tearing it apart.

Cheers
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Currently: Yamaha DT 125 LC2,Repsol Fireblade, and Bumblebee MSX 125
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barrkel
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Joined: 30 Jul 2012
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PostPosted: 15:55 - 06 Aug 2015    Post subject: Reply with quote

Check for small circular plug on the side (typically with a groove in it, suitable for turning with a coin). Should have visibility onto something crank-attached with a mark for TDC.
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Bikes: S1000R, SH350; Exes: Vity 125, PS125, YBR125, ER6f, VFR800, Brutale 920, CB600F, SH300x4
Best road ever ridden: www.youtube.com/watch?v=s2MhNxUEYtQ
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