8
. CARBURETOR
BR & M2 250 ENGINE
8-7 ACCELERATOR PUMP SYSTEM
This system works only when the rider opens throttle grip quickly as pump send the
necessary amount of fuel to the carburetor bore for correcting fuel/air mixture ratio.
When the rider open the throttle grip quickly, the intaken air volume becomes large
and air velocity at the bottom of the throttle valve (piston valve)is slow and sucking
volume of fuel is less.
The throttle valve lever
•
pulls lever
‚
with the cable, and lever
ƒ
turns and pushes
rod
„
. The rod
„
pushes plunger
…
. This plunger pushes out the fuel through outlet
pipe
†
, spraying fuel into the main bore.
Содержание Bug Rider BR-250
Страница 1: ...BR 250 BR 250SS M2 250 SERVICE MANUAL Manufactured by PGO of Motive Power Industry Co Ltd...
Страница 34: ...4 CYLINDER HEAD VALVES 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Страница 46: ...5 CYLINDER PISTON 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Страница 55: ...6 DRIVE AND DRIVEN PULLEYS KICK STARTER 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Страница 71: ...7 FINAL REDUCTION 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Страница 82: ...8 CARBURETOR BR M2 250 ENGINE...
Страница 90: ...9 A C GENERATOR STARTER CLUTCH 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Страница 97: ...10 CRANKCASE CRANKSHAFT 1 BR M2 250 ENGINE SCHEMATIC DRAWING...
Страница 103: ...10 CRANKCASE CRANKSHAFT 7 BR M2 250 ENGINE Torque 7 8 11 8N m Cam Chain Tensioner Slipper Bolt...
Страница 105: ...11 COOLING SYSTEM 1 BR M2 250 ENGINE SCHEMATIC DRAWING...