Question about 2002 Yamaha TT-R 250
There is a nut in a recess at the front of the cylinder, beneath the second fin. There is also two more bolts front and back of head near cams. Don't forget to take out the front camchain dampener. Once you have got all of them, systematically go around base of head with light upwards taps with a rubber mallet. Gaskets often cause grief when old or sealed with additional products. Do not prise between fins or wedge between head and cylinder. Gentle, systematic taps is all that will be needed. There are dowels and cylinder studs between both parts and the head needs to come off completely straight without causing damage. The alloy head and cylinder is very soft compared to the tensile strength of these dowels and stud bolts. Goodluck and Cheers.
Link below has exploded view of the section needed. (other sections go to "partslist" on header at top)
Posted on May 11, 2010
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Posted on Jan 02, 2017
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