Suzuki BURGMAN AN650 (2003) [83/463] Cautio
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Suzuki BURGMAN AN650 (2003) [83/463] Cautio

Suzuki BURGMAN AN650 (2003) [83/463] Cautio

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3 32 ENGINE BOTTOM NARROWING CUT If the contact area is too wide or too low use the 60 cutter to narrow and raise the contact area FINAL SEAT CUT If the contact area is too low or too narrow use the 45 cut ter to raise and widen the contact area NOTE After cutting the 15 30 and 60 angles it is possible that the valve seat 45 is too narrow If so recut the valve seat to the correct width After the desired seat position and width is achieved use the 45 cutter very lightly to clean up any burrs caused by the pre vious cutting operations CAUTION Do not use lapping compound after the final cut is made The finished valve seat should have a velvety smooth finish but not a highly polished or shiny fin ish This will provide a soft surface for the final seat ing of the valve which will occur during the first few seconds of engine operation NOTE After servicing the valve seats be sure to check the tappet clearance after the cylinder head has been reinstalled CTT2 9 Clean and assemble the head and valve components Fill the intake and exhaust ports with gasoline to check for leaks If any leaks occur inspect the valve seat and face for burrs or other things that could prevent the valve from sealing A WARNING Always use extreme caution when handling gasoline

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