Friday, 10 October 2014

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 Blog Index - Contents






 
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Yamaha YZF R125 top end barrel cylinder piston removal   
 buy a haynes workshop manual from here 




Removing the top end is easy the only thing to remeber is how to set timing on rebuild which is not difficult .





Yamaha YZF R125 top end barrel cylinder piston removal

Remove the rocker cover bolts 

Yamaha YZF R125 top end barrel cylinder piston removal

this exposes the main cylinder head bolts

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Remove water pump see our post here on that 

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal


these 2 allen head bolts need to be removed as well 

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Here im holding the flywheel bolt to undo the timing chain 
bolt .

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

below the timing chain tensioner is losened and then  removed 

Yamaha YZF R125 top end barrel cylinder piston removal

you can now free the timing chain i hold it with string to avoid dropping it into
engine

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal


ive now removed the timing chain sprocket as i needed to 
and im undoing the top cylinder head main bolts 

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal


pulling head free while controlling chain 

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

now remove chain guides 

Yamaha YZF R125 top end barrel cylinder piston removal

and prepare cylinder barrel for removal 

Yamaha YZF R125 top end barrel cylinder piston removal

again control chain while lifting of barrel 

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal

Yamaha YZF R125 top end barrel cylinder piston removal












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