Echo CS-310 Service Manual

ENGINE
CS-310
51
8 ENGINE
( A ) Cylinder (Upper crankcase)
( B ) Crankcase (Lower crankcase)
( C ) Crankshaft assembly
( D ) Ball bearing
( E ) Oil seal
( F ) Engine cover
( G ) Piston ring
( H ) Snap ring
( J ) Piston
( K ) Piston pin
( L ) Piston pin spacer
( M ) Intake bellows
( N ) Intake bellows retainer
( O ) Intake insulator
(F)
(D)
(B)
(N)
(G)
(A)
(C)
(H)
(K)
(J)
(L)
(M)
(O)
(E)

Echo CS-310 Specifications

General

Engine Displacement	30.5 cc
Bar Length	14 inches
Weight	8.8 lbs
Chain Pitch	3/8 inch
Chain Gauge	0.050 inch