750XN (MaximX)

Crankshaft and Connecting Rods

CRANKSHAFT AND CONNECTING ROD

Crankshaft Runout

1.  Place both ends of crankshaft on V-blocks.

2.  Rotate Crankshaft

3.  Measure the crankshaft runout at main journal bearings. Use a Dial Gauge (90890-03097).

Oil Pump, Clutch and Water Pump

OIL PUMP AND OIL PAN

 

1   Chain cover
2   Oil pump sprocket
3   Oil pump drive sprocket 
4   Oil pump cover
5   Inner rotor
6   Spring
7   Relief valve
8   Shaft
9    Dowel pin
10   Outer rotor
11   Dowel pin

12   O-ring

Pistons, Starter, Generator and Pickup Coil

PISTON AND CAM CHAIN GUIDE

Mark each piston so it can be reinstalled in the appropriate cylinder. 
1. Remove: 
• Piston pin clips 1
• Piston pins 2

Camshafts, Chain and Sprockets

CAMSHAFT, CAM CHAIN, AND CAM SPROCKET

Camshaft

1. Measure:
• Large cam lobe length 1
• Small cam lobe length 2

Lower Crankcase

LOWER CRANKCASE

Cylinder Head and Camshaft Case


1. Remove
• Lifters 1
• Valve pads 2

NOTE:
Identify each lifter and pad position very carefully so that it can be reinstalled in its original place.

Radiator Pipes, Carburettor Joints and Oil Delivery Pipe

RADIATOR PIPES, CARBURETOR JOINT, AND OIL DELIVERY PIPE

1. Install: 
• Union bolt with copper washer 1
• Cylinder head side cover 2

Oil Delivery Pipe: 21 Nm (2.1 m-kg, 15 ft-lb)

Transmission

TRANSMISSION

1. Inspect:
• Shift fork cam follower 1
• Shift fork pawl 2
• Guide bar 3  

Scoring/Bends/Wear->  Replace.

Middle Gear Removal and Disassembly

REMOVAL 

Middle Drive Gear

NOTE:
Middle drive gear and its shims can be removed without separating the engine.

1. Remove the clutch cover. Refer to "ENGINE DISASSEMBLY."

Upper Crankcase

UPPER CRANKCASE