Echo PB-251 Service Manual

PB-251
39
ENGINE
7 ENGINE
( A ) Cylinder cover
(plastic)
( B ) Cylinder cover
(metal)
( C ) Cylinder
( D ) Cylinder gasket
( E ) Piston ring
( F ) Piston
( G ) Piston pin
( H ) Snap ring
( I ) Needle bearing
( J ) Circular washer
( K ) Ball bearing
( L ) Dowel pin
(M) Oil seal
( N ) Crankcase
( O ) Crankshaft
assembly
( P ) Crankcase gasket
(D)
(E)
(F)
(G)
(C)
(A)
(H)
(I)
(J)
(K)
(L)
(M)
(M)
(N)
(N)
(O)
(P)
(B)

Echo PB-251 Specifications

General

Engine Displacement	25.4 cc
Air Speed	170 mph
Noise Level	70 dB(A)
Type	Handheld
Power Source	Gasoline
Fuel Capacity	16.9 fl oz