Lf

58.95 - 59.00 (2.321 -2.323 in) 0.35-0.85 mm (0.014 - 0.0335 in) <0.06 mm (0.00236 in)> 0.8-1.0 mm (0.0315-0.0394 in)

Balancer Drive Method

Gear

Clutch:

Friction Plate Thickness/ Quantity Wear Limit

Clutch Plate Thickness/Quantity

Warp Limit Clutch Spring Free Length/Quantity Clutch Spring Minimum Free Length

Clutch Release Method

Outer push (Rack & Pinon)

Model

YFM350XA

Decompression Device:

Type

Manual

Air Filter Oil Grade (Oiled Filter)

Foam-Air-Filter Oil or

SAE 10W30 SE motor oil

Carburetor:

Type/Manufacturer/Quantity

BTM36SH/MIKUNI/1

I.D. Mark

2XK-00

Main jet

(M.J.)

#145

Main Air Jet

(M.A.J.)

00.6

Jet Needle-clip

Position

(J.N.)

5J18-3

Needle Jet

(M.M.)

0-6

Pilot Jet

(P.J.)

#42.5

Pilot Ait Jet

(P.A.J,)

01.0

(P.A.J2)

00.7

Pilot Screw (turns out)

(P.S.)

2

Valve Seat

(V.S.)

02.5

Starter Jet

(G.S.)

#62.5

Fuel Level

(F.L.)

3-4 mm (0.12-0.16 in)

Float Height

11.4-13.4 mm (0.45 - 0.53 in)

Engine Idling Speed

1,450-1,550 r/min

Vacuum Pressure at Idling Speed

33.3 kPa (250 mmHg, 9.84 inHg)

Lubrication System:

Oil Filter Type

Wire mesh

Oil Pump Type

Trochoid pump

Tip Clearance

0.15 mm (0.006 in)

Housing and Outer Rotor

Clearance

0.04-0.09 mm (0.002 - 0.004 in)

Side Clearance

0.04 - 0.09 mm (0.002 - 0.004 in)

TIGHTENING TORQUE:

Parts to be tightened

Parts name

Thread

Q'ty

Tightening Torque

Remarks

Size

Nm

m*kg

ft-lb

Cylinder head

Flange bolt

M10

4

40

4.0

29.0

1

Hex bolt

M8

2

20

2.0

14.0

A

Cylinder body

Hex bolt

M6

1

10

1.0

7.2

m

Cylinder head cover (Valve)

Hex bolt

M6

5

10

1.0

7.2

(Sprocket)

Pan head screw

M6

2

10

1.0

7.2

Use lock washer.

Camshaft bearing plate

Hex bolt

M6

2

8

0.8

5.8

Oil checking bolt

Bolt

M6

1

7

0.7

5.1

Spark plug

M12

1

17.5

1.75

12.5

Use lock washer.

Balancer shaft

Hex nut

M16x 1.0

1

60

6.0

43.0

Flywheel magneto

Bolt

M10x 1.25

1

50

5.0

36.0

Valve clearance (Locknut)

Hex nut

M7

2

20

2.0

14.0

Cam sprocket

Bolt

M10

1

60

6.0

43.0

Intake side chain guide

Bolt

M6

2

10

1.0

7.2

Oil pump

Pan head screw

M6

4

7

0.7

5.1

Drain plug

M35

1

32

3.2

23

Filter cover

Hex bolt

M6

3

10

1.0

7.2

Carburetor

Nut

M8

2

16

1.6

11.0

Carburetor clamp hose

Pan head screw

M5

1

2

0.2

1.4

Muffler mount

Flange bolt

M8

3

27

2.7

19.0

Exhaust pipe

Nut

M6

2

12

1.2

8.7

¿1

Exhaust pipe protector

Pan head screw

M6

4

8

0.8

5.8

Crankcase

Flange bolt

M6

16

10

1.0

7.2

Case cover

Flange bolt

M6

11

10

1.0

7.2

Clutch spring

Hex bolt

M6

5

8

0.8

7.2

Clutch boss

Hex nut

M16

1

80

8.0

43.0

Primary drive gear

Hex nut

M16

1

80

8.0

36.0

Drive sprocket

Nut

M20

2

75

7.5

7.2

Shift pedal

Hex bolt

M6

1

10

1.0

7.2

Cam chain tensioner (Body)

Hex bolt

M6

2

10

1.0

7.2

(Blind)

Bolt

M12

1

38

3.8

27.0

Muffler and Exhaust pipe

Hex bolt

M8

1

20

2.0

14.0

Pulser coil

Screw

M5

2

5

0.5

5.1

Source coil

Screw

M6

3

7

0.7

5.1

Recoil starter

Bolt

M6

4

10

1.0

7.2

Starter motor

Bolt

M6

2

10

1.0

7.2

Neutral switch

M10

1

20

2.0

14.0

Reverse switch

M10

1

20

2.0

14.0

Stopper lever

Bolt

M6

1

14

1.4

10.0

Reverse shift cam

stopper bolt

Bolt

M14

1

10

1.0

7.2

CHASSIS

Model

YFM350XA

Steering System: Lock to Lock Angle: Left Right

40° 40°

Front Suspension: Shock Absorber Stroke Shock Absorber Spring Free Length Spring Rate (K1) Stroke

No

Rear Suspension: Shock Absorber Stroke Shock Absorber Spring Free Length Spring Rate (K1) Stroke

Enclosed Gas Pressure (Standard)

1,569 kPa (16 kg/cm2, 227 psi)

Swingarm: Free Play Limit: Side

<1.0 mm (0.04 in)>

Wheel: Front Wheel Type Rear Wheel Type Front Rim Size/Material Rear Rim Size/Material Rim Runout Limit: Vertical Lateral

Panel Wheel Panel Wheel 10x6/Aluminum 9x8.25/Aluminum

<2.0 mm (0.08 in)> <2.0 mm (0.08 in)>

Front Disc Brake: Type

Disc Outside x Thickness Pad Thickness < Limit >

Dual disc

161 x3.5 mm (6.34x0.138 in) 4.5 mm (0.177 in) <1.0 mm (0.039 in)>

Rear Disc Brake: Type

Disc Outside Diameter x Thickness

Pad Thickness

245 x 3.5 mm (9.65x0.14 in) <3.0 mm (0.12 in)> 4.5 mm (0.177 in) <1.0 mm (0.0394 in) >

Model

YFM350XA

Brake Lever & Brake Pedal: Brake Lever Free Play Brake Pedal Position Brake Pedal Free Play

4-8 mm (0.157-0.315 in) at lever end 10 mm (0.4 in) 8 mm (0.315 in)

Drive Chain: Type/Manufacturer Number of links Chain Free Play

520V6/DAIDO 98 links

30 - 40 mm (1.18-1.57 in)

Clutch lever Free Play:

5-10 mm (0.20-0.39 in)/at lever end

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