Question about 1991 Honda CB 250 Nighthawk
T should be top dead centre TDC(when piston is exactly at top of stroke)
F should be fire(when the ignition triggers)
S not sure? but could be the mark the timing advances too when the bike is reved
Posted on Apr 05, 2011
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Posted on Jan 02, 2017
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Honda CRV/Odyssey 1995-2000 Repair Information
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If the camshaft or crankshaft has rotated during assembly, rotate the crankshaft counterclockwise until the white Top Dead Center (TDC) mark on the pulley aligns with the pointer on the engine cover. If the valve cover and upper timing cover have been removed, be sure the UP mark on the camshaft is facing up, and that the crankshaft TDC mark aligns with the pointer on the lower timing cover.
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