4
. CYLINDER HEAD/VALVES
4
BR & M2 250 ENGINE
CYLINDER HEAD COVER
REMOVAL
Remove the center cover.)
Remove the met-in box.
Remove the cylinder head cover four bolts and
then remove the cylinder head cover.
CAMSHAFT REMOVAL
Turn the A.C. generator flywheel so that the “T”
mark on the flywheel aligns with the index mark
on the crankcase.
Hold the round hole on the camshaft gear facing
up and the location is the top dead center on the
compression stroke.
Remove the two bolts attaching cam chain
tensioner and the tensioner.
First remove the two bolts between the cylinder
head and cylinder.
Then, remove the four cap nuts attaching the
cylinder head.
Remove the camshaft holder and dowel pins.
Cylinder Head Cover
Bolt
Cam Chain Tensioner
Round Hole
Camshaft Holder
Bolts
•
Diagonally loosen the cylinder head cap
nuts in 2 or 3 times.
＊
Camshaft Holder
Cap Nuts
Summary of Contents for Bug Rider BR-250
Page 1: ...BR 250 BR 250SS M2 250 SERVICE MANUAL Manufactured by PGO of Motive Power Industry Co Ltd...
Page 34: ...4 CYLINDER HEAD VALVES 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Page 46: ...5 CYLINDER PISTON 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Page 55: ...6 DRIVE AND DRIVEN PULLEYS KICK STARTER 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Page 71: ...7 FINAL REDUCTION 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Page 82: ...8 CARBURETOR BR M2 250 ENGINE...
Page 90: ...9 A C GENERATOR STARTER CLUTCH 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Page 97: ...10 CRANKCASE CRANKSHAFT 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Page 103: ...10 CRANKCASE CRANKSHAFT 7 BR M2 250 ENGINE Torque 7 8 11 8N m Cam Chain Tensioner Slipper Bolt...
Page 105: ...11 COOLING SYSTEM 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
