1999 Yamaha Sleds:
Models  99 SRX 600  99 SRX 700  99 500 SX, ER & C  99  600 VmaxC  99 600 SX,& ER 99 700 SX, ER, C  99 500 Phaser  99 Ovation LE  99 MM 600 99 MM 700  99 Phazer MTN Lite  99 Venture 500   99 Venture 600 99 Venture 700  99 Venture 500XL  99 Venture 480TD  99 VK540III  99 ET410TR  99 Bravo LT
Engine (cyl) 598 (3) 696 (3) 494 (2) 598(2) 593 (3) 698 (3) 485(2) 337 (2) 598(2) 698 (3) 485 (2) 494 (2) 593 (3) 698 (3) 485(2) 485(2) 353 (2) 408 (2) 246 (2)
Carburetor                                      
Type Mikuni TM33x 3 Mikuni TM33x 3 Mikuni TM36x 2 Mikuni  TM36x 2 Mikuni  TM31x 3 Mikuni  TM33x 3 Mikuni B38-32x 2 Teikei Y26W-2  Mikuni  TM36x 2 Mikuni  TM33x 3 Mikuni B38-32x 2 Mikuni TM36x 2 Mikuni  TM31x 3 Mikuni  TM33x 3 Mikuni B38-32x 2 Mikuni B38-32x 2 Mikuni B38-34 Teikei Y26W-2  Keihin BD32-28
Main Jet 1/2 - 146.3, 3-150 1/2 - 146.3, 3-148.8 151.3 151.3 1-136.8, 2/3-133.8 1-145, 2/3-143.8 1-143.8, 2-142.5 174 160 1-145, 2/3-143.8 143.8 151.3 1-136.8, 2/3-133.8 1-145, 2/3-143.8 1-143.8, 2-142.5 1-143.8 141.3 1166 105
Clip Position 3 3 2 2 3 3 n/a na 2 3 na 2 3 3 n/a n/a na na na
Pilot Jet 47.5 42.5 45 45 42.5 45 70 76 65 45 95 45 42.5 45 70 95 90 78 78
Float Height (mm) 13.3 +/- 2 13.3 +/- 2 22.3+/- 2 22.3+/- 2 13.3+/- 2 13.3+/- 2 11.5+/- 2 31+/- 2 22.3+/- 2 13.3+/- 2 11.5+/- 2 22.3+/- 2 13.3+/- 2 13.3+/- 2 11.5+/- 2 11.5+/- 2 14+/- 2 31+/- 2 15+/- 2
Fuel Screws 1 1/2 1 1/8 1 3/4 1 1/2 2 1 1/2 1 1 1/2 2 1 1/2 1 1/2 1 3/4 2 1 1/2 1 1 1/2 1 1/4 1 3/8 1 1/4
Pilot Air Jet 1 1 0.8 0.8 1 1 0.8 .8/1.9 #85 1 .5/1.5 0.8 1 1 0.8 .5/1.5 0.8 .1/1.9 100
Idle RPM 1800 +/- 100 1800 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1300 +/- 100 1800 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1600 +/- 100 1200 +/- 100 1900 +/- 100 1100 +/- 100
Drive                                      
Engagement RPM 4100 3900 4000 4000 4000 4000 3800 3500 4200 4000 3500 4000 4000 3900 3700 2900 2600 3000 3200
Shift RPM 8500 8500 7800 7800 8500 8300 7250 6600 7800 8300 6800 7800 8500 8300 7250 6800 6700 6500 5900
Belt Type 8DN 8DN 8CJ 89L 8DN 8DN 89L 820 89L 8DN 87X 8CH 8DN 8DN 89L 87X 87X 89X 89X
Sheave Ctr to Ctr 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 268.5 mm 266 mm
Sheave Offset 15 mm 15 mm 15 mm & 20mm ER 15 mm  15 mm & 20mm ER 15 mm & 20mm ER 15 mm 11 mm 15 mm 15 mm 13.5 mm 20 mm 20 mm 20 mm 20 mm 13.5 mm 13.5 mm 11 mm 11 mm
Clutch Weights (rivets) 8df-10 w/13.3 & 17.2 8dn-10 w/13.3 & 17.2 8cr  w/13.9 & 10.3 8cr/none & 10.3 8dg/10.3 & 13.9 8ch/10.3 & 13.9 8dj  w/13.9 & 17.2 85l-00 8cr/none & 10.3 8cr/none & 13.9 8bf-00 8ab  w/none & 10.3 8dg/13.9 & 17.2 8ch/13.9 & 17.2 8dj  w/13.3 & 17.2 89r  w/13.3 8at-00 w/13.3 83r-00 8V8
Roller Type 15mm 15mm 15mm 15.6mm 15mm 14.5mm 16mm 14mm 14.5mm 14.5mm 15mm 15mm 14.5mm 14.5mm 15.6mm 15.6mm 15.6mm 14mm 14mm
Primary Spring G-W-G Y-W-Y W-P-W W-S-W Y-G-Y W-S-W G-P-G Gold G-P-G W-S-W R-P-R W-P-W P-G-P P-P-P P-P-P Gold S-L-S Yellow-Yellow Gold-Pink
Secondary Spring Green Red Red Red Red Green Red Red Red Green Brown Red Red Green Red Pink White Pink None
Secondary Setting  60 deg 60 deg 90 deg 60 deg 90/80/60 deg 60 deg 70 deg 50 deg 80 deg 80 deg 70 deg 80 deg 70 deg 70 deg 70 deg 60 deg 40 deg 40 deg 160deg
Helix Angle 45 deg 47 deg 43 deg 47 deg 47 deg 45 deg 43 deg 46 deg 47 deg 43deg 39 deg 43 deg 43 deg 45 deg 43 deg 39 deg 37 deg 39 deg 48.5 deg
Gearing  23/39 23/37 22/39 23/39 21/40 SX, 23/39 Vmax ER,  23/40 SX & VmaxC , 22/39 VmaxER 21/39 22-Dec 19/39 23/40 16/35 21/39 20/39 22/39 21/39 17/38 17/39 17/38 24-Oct
Chain 70L 70L 70L 70L 70L SX & 68L VmaxER 70L 68L 48L 68L 70L 66L 68L 68L 70L 68L 78L 70L 78L 44L