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CHAPTER 3 ENGINE
When assembling the guide bar, take care not to
assemble the two shift forks and springs in the
opposite direction.
1. Guide bar
3. Left shift fork
5. Right shift fork
7. Spring seat
OIL PUMP
Disassembly oil pump as illustrated:
1. Oil pump housing
3.Oil pump shaft
5.Inner rotor, oil pump 6.Outer rotor, oil pump
7. Oil pump cover
Check oil pump housing and cover for cracks and
damage.
Crack or damage: → Replace
Measure top clearance "a" between inner and outer
rotors and side clearance "b" between outer rotor
and oil pump housing. If the clearance exceeds the
limit, replace with new one.
Top Clearance:0. 03-0.10mm
Service Limit: 0. 15mm
Side clearance: 0. 03-0.10mm
Service Limit: 0.12mm
2. Retainer
4. Shift fork Spring (small)
6. shift fork spring (big)
2.Dowel pin
4.Straight pin
T-Boss550 SERVICE MANUAL20.0
CHAPTER 3 ENGINE
PAGE. 3- 74
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