700XSC (MaximX)

Maximized X

The Maxim X tank is a little on the small side. So when I had to repair a big dent as part of a restoration project anyway, I thought I'd address the size too.

I didn't want to ruin the classic lines of the X tank, so after much debate, I decided to widen it a few inches, leaving the profile intact. The first step was to layout the planned cut with narrow masking tape. Normally used for things like pinstriping, it follows curves quite nicely.

01-layout_cuts-800.jpg

Carburettor - Idle speed and Synchronization

IDLE SPEED

 

1. Adjust the idle speed. Warm up the engine and turn the throttle stop screw (1) to adjust.

Idle Speed:
1,050 ± 50 r/min

CARBURETOR SYNCHRONIZATION

Exhaust Valve Shim Chart

EXHAUST

 

 

MEASURED CLEARANCE

INSTALLED PAD NUMBER

Intake Valve Shim Chart

INTAKE

 

MEASURED CLEARANCE

INSTALLED PAD NUMBER

120

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).

Ignition Timing Check

IGNITION TIMING CHECK

Flywheel is marked as follows:

(1) Pickup coil mark

(2) TDC for No. 1 cylinder

(3) Firing range for the No. 1 cylinder

1. Check:

• Ignition timing

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

Steering Head Adjustment

Steering Head Inspection

1.  Place the motorcycle on its centerstand, then elevate the front wheel.

2.  Check the steering assembly bearings. Grasp the bottom of the forks and gently rock the fork assembly back and forth. Adjust if any looseness can be detected.

Adjustment

Engine Oil

ENGINE OIL

 

At 5°C(40°F) or Higher:  Yamalube 4-Cycle Oil or SAE 20W40 Type SE Motor Oil

At15°C(60°F) or Lower: SAE 10W30 Type SE Motor Oil