Yamaha YBR 125 workshop manual
if your putting in a new set of rings or a new piston , you must hone the cylinder to break the glaze. This will put a nice crosshatch pattern in the cylinder walls. The crosshatch pattern will hold oil and help lubricate the piston and rings as the rings wear in to the cylinder.
To Hone a Yamaha YBR 125 cylinder is easy . Just stick the hone in the cylinder, add some oil and Move the hone back and forth in the cylinder to produce a cross hatch pattern and in a minute or so your done.
look after your stones , the biggest problems i see with this job is using old tired abused stones.
do not use your honer on Nikosil'ed barrels as it will damage your stones and will need replacing .
you can buy honing tool on Ebay UK here
or Amazon UK here .
thanks for reading the Yamaha Owners blog , if you would like to support us you can by buying your newYamaha YBR 125 off ebay uk here or buying parts for your yamaha YBR 125 from ebay uk here or you can buy a a Yamaha YBR 125 haynes manual of Amazon UK here or for YBR accessories at Amazon UK here , or visit chinas online superstore here for very cheap motorcyle products direct from china .
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