| 1990 Yamaha Sleds: | ||||||||||||||||||||||
| Models | Snow Sport SV 125EP-W | Viking VK540EP | Exciter II EX570EP-L | Exciter II EX570EP-R | Exciter II EX570P | XL-V XL540P | SR-V SR540P | V-Max VMX540P | Phaser II PZ480EP-R | Phaser II PZ480EP-B | Phaser II PZ480P | Enticer Rev ET400TRP | Enticer ET400TP | Ovation EL CS340EP | Ovation CS340P | Bravo Trapper BR250TP | Bravo Transporter BR250TSP | Bravo BR250P | ||||
| Engine (cyl) | 123 | 535 (2) | 569 (2) | 569 (2) | 569 (2) | 535 (2) | 535 (2) | 535(2) | 485(2) | 485(2) | 485(2) | 408(2) | 408(2) | 337(2) | 337(2) | 246 (1) | 246 (1) | 246 (1) | ||||
| Carb Type | Mikuni B26-20 | Mikuni B38-34 | Mikuni VM38 | Mikuni VM38 | Mikuni VM38 | Mikuni B38-32 | Keihn BD44-38 | Mikuni VM38x 2 | Mikuni BM38-32x 2 | Mikuni BM38-32x 2 | Mikuni BM38-32x 2 | Mikuni B38-32x 2 | Mikuni B38-32x 2 | Teikei Y26W-2x 2 | Teikei Y26W-2x 2 | Keihn BD32-28 | Keihn BD32-28 | Keihn BD32-28 | ||||
| Main Jet | 97.5 | 141.3 | 320 | 320 | 320 | 132.5 | 150 | 290 | 143.8 | 143.8 | 143.8 | 140 | 140 | 174 | 174 | 105 | 105 | 105 | ||||
| Clip Position | 4 | |||||||||||||||||||||
| Pilot Jet | 55 | 90 | 42.5 | 42.5 | 42.5 | 60 | 92 | 40 | 95 | 95 | 95 | 80 | 80 | 76 | 76 | 78 | 78 | 78 | ||||
| Float Height (mm) | 16.3+/- 1 | 12.7+/- 1 | 18.1+/-1 | 18.1+/-1 | 18.1+/-1 | 12+/- 2 | 15+/- 2 | 18.1+/-1 | 11.5+/- 2 | 11.5+/- 2 | 11.5+/- 2 | 12.7+/- 1 | 12.7+/- 1 | 31+/- 1 | 31+/- 1 | 15+/- 2 | 15+/- 2 | 15+/- 2 | ||||
| Fuel Screws | 1 1/2 | 1 1/4 | 5/8 | 5/8 | 5/8 | 1 1/2 | 2 | 1 | 1 1/2 | 1 1/2 | 1 1/2 | 1 1/2 | 1 1/2 | 1 1/2 | 1 1/2 | 1 1/4 | 1 1/4 | 1 1/4 | ||||
| Pilot Air Jet | 0.8 | 0.8 | 100 | 0.5 | 0.5 | 0.5 | 0.7 | 0.7 | 1.1 | 1.1 | 100 | 100 | 100 | |||||||||
| Idle RPM | 2100 +/- 100 | 1200 +/- 100 | 1500 +/- 100 | 1500 +/- 100 | 1500 +/- 100 | 1200 +/- 100 | 1500 +/- 100 | 1500 +/- 100 | 1600 +/- 100 | 1600 +/- 100 | 1600 +/- 100 | 1700 +/- 100 | 1700 +/- 100 | 1800 +/- 100 | 1800 +/- 100 | 1100 +/- 100 | 1100 +/- 100 | 1100 +/- 100 | ||||
| Drive | ||||||||||||||||||||||
| Engagement RPM | 3500 | 2500 | 3700 | 3700 | 3700 | 3400 | 3400 | 4000 | 3500 | 3500 | 3500 | 3200 | 3100 | 3500 | 3500 | 3200 | 2900 | 3100 | ||||
| Shift RPM | 7000 | 6700 | 7250 | 7250 | 7250 | 6900 | 7200 | 8200 | 6850 | 6850 | 6850 | 6500 | 6500 | 6600 | 6600 | 5900 | 5700 | 5700 | ||||
| Belt Type | ||||||||||||||||||||||
| Sheave Ctr to Ctr | 268.5 mm | 268.5mm | 268.5mm | 268.5mm | 268.5mm | 268.5 mm | 305 | 268.5 mm | 268.5 mm | 268.5 mm | 266 mm | 266 mm | 268.5 mm | 268.5 mm | 266 mm | 266 mm | 266 mm | |||||
| Sheave Offset | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | 11 mm | |||||
| Clutch Weights (rivets) | ||||||||||||||||||||||
| Roller Type | ||||||||||||||||||||||
| Primary Spring | White | B-B-W | B-B-W | B-B-W | Wh-Purp | Gold-Wh | Wh-Yell | Green-Yell | Green-Yell | Green-Yell | White-Violet | Blue Green | Gold | Gold | Gold-Pink | None | None | |||||
| Secondary Spring | White | White | White | White | Pink | Pink | Pink | Green-Yell | Green-Yell | Green-Yell | Gold | None | Red | Red | None | None | None | |||||
| Secondary Setting | 50 (2) | A-2 (50) | A-2 (50) | A-2 (50) | A-2 (50) | B-1 (30) | C-2 (40) | C-2 (75) | C-2 (75) | C-2 (75) | 192 | 160 | 120 | 120 | 160 | 160 | 160 | |||||
| Helix Angle | ||||||||||||||||||||||
| Gearing | 14/43X 21/29 | 17/39 | 17/31 | 17/31 | 17/31 | 17/29 | 17/31 | 18/33 | 17/29 | 17/29 | 17/29 | 14/31 | 12/23 | 12/22 | 12/22 | 10/24 | 12/23 | 13/22 | ||||
| Chain | ||||||||||||||||||||||