Checking Pulse Passages; Option) Assembling Heavy Duty Air Cleaner Kit - Bosch PB-650 Service Manual

PB-650
PB-750
4-11 Checking pulse passage
(A)
4-12 (Option) Assembling heavy duty air cleaner kit for PB-650 (Part number : P021-007160)
(M)
(L)
(E)
(H)
(G)
FUEL SYSTEM
(A)
(B)
(C)
(F)
(O)
(N)
(C)
(D)
(K)
1. Remove carburetor, and drop a little oil in the
pulse hole (A) on Insulator.
2. Remove spark plug and pull starter grip several
times. Oil should spit back from the hole.
3. If not, remove Insulator and gaskets. Check
gaskets for misassembly or remove the oil residue
clogging the pulse passages in insulator and cylin-
der.
4. Install gasket and insulator and the other remain-
ing parts.
1. After removing air cleaner lid and air filter, loosen
bolt 900105-05060 (A) to remove air cleaner case,
carburetor and intake gasket.
2. Assemble new intake gasket (B), carburetor and
cleaner case (C) with bolt 900105-05055 as shown.
Torque limits : 40 - 55 kgf•cm (4.0 - 5.5 N•m).
3. Install prevent plate (D) to cleaner case (C) meet-
ing the notch (N) with hole (O) on cleaner case.
4. Install air cleaner case (E) on fan case using 2
bolts (F).
5. Connect intake pipe (G) with air cleaner case (E)
and secure it with band (H).
6. Connect intake pipe (G) with cleaner case as-
sembly (C) and secure it with clamp (K).
7. Install air filter (L) and air cleaner lid (M).
8. After installing air cleaner kit, make it sure engine
running condition.
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