|
|
|
Istoric Modele - Yamaha XT
|
|
|
|
YAMAHA XT 500
|
Postat de Crisan catalin la data 13.03.2011
|
|
MODEL INFO
|
XT500C |
XT500D |
XT500E |
XT500F |
XT500G,H |
| Length |
85.4 in |
84.8 in |
84.8 in |
84.8 in |
84.4 in |
| Width |
34.4 in |
34.4 in |
34.4 in |
34.4 in |
34.4 in |
| Height |
48.0 in |
46.5 in |
46.5 in |
46.5 in |
45.7 in |
| Wheelbase |
55.9 in |
55.9 in |
55.9 in |
55.9 in |
55.7 in |
| Clearance |
8.5 in |
8.9 in |
8.9 in |
8.9 in |
8.9 in |
| Weight |
304 |
306 |
306 |
306 |
304 |
| CARB |
XT500C |
XT500D |
XT500E |
XT500F |
XT500G,H |
| Make |
Mikuni |
Mikuni |
Mikuni |
Mikuni |
Mikuni |
| Type |
VM34SS |
VM32SS |
VM32SS |
VM32SS |
VM32SS |
| Main Jet |
210 |
240 |
230 |
230 |
250 |
| Air Jet |
0.8 |
0.8 |
45. |
N/A |
N/A |
| Jet Needle |
5J10-3 |
6H2-4 |
6FL24-3 |
6FL24-3 |
5FL34-Fixed |
| Needle Jet |
Q-2 |
Q-2 |
Q-0 |
Q-0 |
P-8 |
| Cut-away |
4.5 |
4.0 |
3.5 |
3.5 |
3.5 |
| Pilot Jet |
35 |
30 |
25 |
25 |
20 |
| Starter Jet |
60 |
60 |
55 |
N/A |
N/A |
| Air screw |
1 ¾ |
1 ¾ |
Preset |
Preset |
Preset |
| Float Level |
22.0±2.5mm |
22.0±2.5mm |
34.0±0.5mm |
22.0 ± 1mm |
23.5 ± 1mm |
| Idle speed RPM |
1100 |
1200 |
1200 |
1200 |
1200 |
| GEARBOX |
Type |
5-speed, constant mesh |
| Gear Ratios |
1st |
2.357 : 1 |
| |
2nd |
1.555 : 1 |
| |
3rd |
1.190 : 1 |
| |
4th |
0.916 : 1 |
| |
5th |
0.777 : 1 |
| Primary |
drive ratio |
2.566 : 1 |
| Final |
XT500C, D, E, F |
2.750 : 1 |
| XT500 ENGINE |
Type |
SOHC Four Stroke |
| |
Bore |
87 mm |
| |
Stroke |
84 mm |
| |
Capacity |
499cc |
| |
Compression ratio |
9 : 1 |
| Cylinder Barrel |
Type |
Aluminum with cast iron liner |
| |
Standard Bore |
87.00 - 87.02 mm |
| |
Wear limit |
87.1 mm |
| |
Taper limit |
0.05 mm |
| |
Ovality limit |
0.01 mm |
| |
Cylinder bore/piston clearance |
0.050 - 0.055 mm |
| |
Wear limit |
0.1 mm |
| Piston Oversizes |
1st oversize |
87.25 mm |
| |
2nd oversize |
87.50 mm |
| |
3rd oversize |
87.75 mm |
| |
4th oversize |
88.00 mm |
| Ringe End Gap |
Top and second ring |
0.3 - 0.5 mm |
| |
Wear limit |
0.8 mm |
| |
Oil control ring |
0.2 - 0.9 mm |
| |
Wear limit |
1.0 mm |
| Piston Side Clearance |
Top ring |
0.04 - 0.08 mm |
| |
Wear limit |
0.15 mm |
| |
Second ring |
0.03 - 0.07 mm |
| |
Wear limit |
0.15 mm |
| Valves and Valve Springs |
Valve seat angel |
45° |
| |
Intake valve stem diameter |
7.97 - 7.99 mm |
| |
Exhaust valve stem diameter |
7.96 - 7.97 mm |
| |
Intake valve stem guide clearance |
0.02 -0.04 mm |
| |
Wear limit |
0.08 mm |
| |
Exhaust valve stem guide clearance |
0.04 - 0.06 mm |
| |
Wear limit |
0.1 mm |
| |
Inner valve spring free length |
45.25 mm |
| |
Wear limit |
43.9 mm |
| |
Outer valve spring free length |
45.15 mm |
| |
Wear limit |
43.8 mm |
| MAINTENANCE |
| Engine Oil |
Lubricant |
SAE 20W/40 or SAE 20W/50 motor oil |
| |
Dry capacity |
2.5 quarts |
| |
At oil change |
2.1 quarts |
| |
Oil and filter change |
2.2 quarts |
| Front Forks |
Damping fluid |
SAE 20 fork oil or SAE 10W/30 engine oil |
| |
XT500C Capacity |
7.34 fl oz |
| |
XT500D, E, F |
7.5 fl oz |
| |
XT500G, H |
8.0 fl oz |
| Contact Breaker |
Gap |
0.3 - 0.4 mm |
| Spark Plug |
Type |
NGK BP-7ES or Champion N-7Y |
| |
GAP |
0.7 - 0.8 mm |
| Valve Clearances |
Intake (cold) |
0.07 - 0.12 mm |
| |
Exhaust (cold) |
0.12 - 0.17 mm |
| Ignition Timing |
Retarded |
7°BTDC |
| |
XT500C, D, E, F Full Advance |
27° ± 3° BTDC |
| |
XT500G, H Full Advance |
33.5° BTDC @ 7000 rpm |
| |
XT500C, D, E, F Range |
20° ± 3° |
| |
XT500G, H Range |
26.5° |
| |
XT500C,D,E,F Advancer system |
Centrifugal |
| |
XT500G, H Advancer system |
Electronic |
| |
XT500C Advance starts |
2250 ± 150 rpm |
| |
XT500D, E Advance starts |
2100 ± 300 rpm |
| |
Advance finishes |
3000 ± 200 rpm |
| Ignition Coil |
Make |
Nippon Denso |
| |
Type |
029700-3900 |
| |
Primary winding resistance |
0.75 ohms ± 10% at 68°F |
| |
Secondary winding resistance |
5.75 K ohms ± 20% at 68°F |
| Condenser |
Make |
Nippon Denso |
| |
Capacity |
0.22 microfrads ± 10% |
| |
Insulation resistance |
3 Megaohms or more |
|
|
|
|
|
|
