Content Source: 2021 550 Indy 144 Owner’s Manual (9931273 R01) > Specifications Chapter
| IMPORTANT |
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The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual. Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com |
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Capacities and Dimensions |
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Body Style |
PRO-RIDE |
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Rider Capacity |
1 Rider |
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Chaincase Oil Capacity |
8.96 oz. (265 ml) |
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Fuel Capacity |
10 gal. (37.85 l) |
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Oil Capacity |
3.05 qts. (2.89 l) |
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Gearcase Oil Capacity |
N/A |
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Height |
41 in. (104.14 cm) |
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Length |
INDY EVO: 114 in. (289 cm) |
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Designed Width |
44 in. (111.76 cm) |
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Brake Type |
Hayes Phantom Lite DOT 4 |
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Drive Clutch Center Distance |
10.63 in. (27 cm) |
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Drive Belt P/N |
3211154 (INDY EVO Models) 3211174 (EVO RMK Models) |
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Drive Clutch Type/Driven Clutch Type |
CVTech PB50 / CVTech Invance |
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Reverse Transmission |
Electronic Reverse |
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Engine and Cooling |
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Engine |
EC550PM0135 |
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Displacement |
544 cc |
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Cylinders |
2 |
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Bore x Stroke (mm) |
73.0 x 65.0 |
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Alternator Output |
280 watt |
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Carburetor/Throttle Body |
2-Mikuni® |
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Carburetor Model |
VM34 |
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Idle RPM |
1700 +/- 200 |
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Rated Operating RPM |
7000 +/- 200 |
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Cooling |
Fan Air |
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Ignition Type |
Kokusan 16 Bit ER |
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Ignition Timing |
15° BTDC @ 1600 RPM, 14° BTDC @ 6500 RPM |
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Spark Plug / Gap |
NGK BR9ES / .028 in. (0.70 mm) |
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Recommended Engine Oil |
Polaris Blue 2-Cycle Semi-Synthetic Oil |
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Recommended Fuel Octane |
Minimum 87 non-oxygenated |
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Carburetor Settings |
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Main Jet |
220 |
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Pilot Jet |
45 |
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Jet Needle/Clip Position |
6BGY48/#4 |
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Needle Jet |
Q-0 (480) |
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Cutaway |
3 |
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Throttle Gap Under CA |
6.98 mm / .275 in. |
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Fuel Screw (from fully seated) |
N/A |
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Air Screw (from fully seated) |
1.5 Turns Fixed |
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Pilot Air Jet |
2.5 |
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Carburetor Jetting |
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* Shaded cells indicate factory settings |
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ALTITUDE Meters (Feet) |
AMBIENT TEMPERATURE |
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°F |
Below |
-30 to - 10 |
-15 to +5 |
0 to +20 |
+15 to +35 |
+30 to +50 |
+45 to +65 |
Above +65 |
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°C |
Below |
-34 to - 23 |
-26 to - 15 |
-18 to - 7 |
-9 to +2 |
-1 to +10 |
+7 to +18 |
Above +18 |
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0-600 (0-2000) |
Main Jet |
240 |
230 |
220 |
220 |
210 |
210 |
200 |
190 |
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Pilot Jet |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
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Clip Position |
#5 |
#4 |
#4 |
#4 |
#3 |
#3 |
#2 |
#1 |
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600-1200 (2000-4000) |
Main Jet |
230 |
220 |
210 |
210 |
200 |
190 |
190 |
180 |
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Pilot Jet |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
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Clip Position |
#4 |
#4 |
#4 |
#3 |
#3 |
#2 |
#2 |
#1 |
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1200-1800 (4000-6000) |
Main Jet |
210 |
200 |
200 |
195 |
190 |
180 |
180 |
170 |
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Pilot Jet |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
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Clip Position |
#4 |
#4 |
#3 |
#3 |
#2 |
#2 |
#2 |
#1 |
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1800-2400 (6000-8000) |
Main Jet |
200 |
190 |
185 |
180 |
170 |
165 |
160 |
160 |
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Pilot Jet |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
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Clip Position |
#4 |
#4 |
#3 |
#3 |
#2 |
#2 |
#1 |
#1 |
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2400-3000 (8000- 10000) |
Main Jet |
190 |
180 |
170 |
165 |
160 |
155 |
150 |
150 |
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Pilot Jet |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
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Clip Position |
#4 |
#3 |
#3 |
#2 |
#2 |
#1 |
#1 |
#1 |
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3000-3700 (10000- 12000) |
Main Jet |
170 |
160 |
155 |
150 |
150 |
145 |
140 |
140 |
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Pilot Jet |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
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Clip Position |
#4 |
#3 |
#2 |
#2 |
#1 |
#1 |
#1 |
#1 |
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The carburetor jetting chart above is consistent with the provisions of U.S.A. federal regulation 40 CFR 1051.115(d)(3) and is an acceptable alternative to the use of tamper-resistant features. |
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| CLUTCHING/GEARING | |||||
|---|---|---|---|---|---|
| INDY EVO | |||||
| *Shaded cells indicate factory settings | |||||
| Altitude Meters (Feet) | Drive Clutch Shift Weights | Drive Clutch Spring | Driven Clutch Spring | Driven Helix | Chaincase Gearing / Pitch |
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0–600 (0–2000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (8 ea.) |
7044161 112-247 CVT 1151-1120 |
7044203 135–157 CVT 5951-1008 |
FIXED |
17:44 72P |
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600-1200 (2000-4000) |
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1200-1800 (4000-6000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (7 ea.) |
7044187 135-247 CVT 1151-1125 |
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1800-2400 (6000-8000) |
2205308-21 gr (1 ea.) 2205309-3.2 (6 ea.) |
7044190 157-247 CVT 1151-1129 |
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2400-3000 (8000-10000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (5 ea.) |
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3000-3600 (10000-12000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (5 ea.) |
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| CLUTCHING/GEARING | |||||
|---|---|---|---|---|---|
| EVO RMK | |||||
| *Shaded cells indicate factory settings | |||||
| Altitude Meters (Feet) | Drive Clutch Shift Weights | Drive Clutch Spring | Driven Clutch Spring | Driven Helix | Chaincase Gearing / Pitch |
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0–600 (0–2000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (8 ea.) |
7044188 135-292 CVT 1151-1126 |
7044203 135–157 CVT 5951-1008 |
FIXED |
17:44 72P |
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600-1200 (2000-4000) |
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1200-1800 (4000-6000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (7 ea.) |
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1800-2400 (6000-8000) |
2205308-21 gr (1 ea.) 2205309-3.2 (6 ea.) |
7044190 157-247 CVT 1151-1129 |
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2400-3000 (8000-10000) |
2205308-21 gr (1 ea.) 2205309-3.2 g (5 ea.) |
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3000-3600 (10000-12000) |
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