Content Source: 2020 550 Indy 144 Owner’s Manual (9929781 R01) > Troubleshooting 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 |
|
Problem |
Probable Cause |
Solution |
|---|---|---|
|
Erratic engine operating RPM during acceleration or load variations |
Drive clutch binding |
Your dealer can perform this service. |
|
Driven clutch malfunction |
Your dealer can perform this service |
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|
Harsh drive clutch engagement |
Drive belt worn or too narrow |
Replace the drive belt. |
|
Excessive belt/sheave clearance |
Your dealer can perform this service. |
|
|
Drive belt turns over |
Wrong belt for application |
Replace the drive belt. |
|
Clutch alignment out of spec |
Your dealer can perform this service. |
|
|
Engine mount broken or loose |
Inspect
and replace. |
|
|
Machine fails to move |
Clutch jammed |
Check for twisted belt or broken spring. Your dealer can perform this service. |
|
Track jammed |
|
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|
Chaincase sprocket or chain jammed or broken |
Chain is loose or broken or chain tightener is loose. Your dealer can perform this service. |
|
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Noise in drive system |
Broken drive clutch components |
Your dealer can perform this service. |
|
Bearing failure/ chaincase, jackshaft, or front drive shaft |
Your dealer can perform this service. |
|
|
Drive belt surface flat spots |
Inspect and replace as needed. |
|
|
Drive chain loose |
Inspect and adjust (or replace). |
|
|
Drive chain worn, sprocket teeth broken |
Your dealer can perform this service. |
|
|
Poor low RPM performance |
Worn drive belt |
Inspect and replace as needed. |
|
Excessive belt/sheave clearance |
Your dealer can perform this service. |
|
|
Sticky clutch |
Your dealer can perform this service. |
|
|
Poor fuel quality |
Use 87-91 octane fuel (or higher). |
|
|
Engine doesn't turn |
Seized engine |
Your dealer can perform this service. Seizure is a result of poor lubrication, inadequate fuel supply, broken parts or improper cooling. |
|
Hydrostatic lock |
Fuel may have entered the crankcase while the vehicle was standing or being transported. Drain plug(s) are located on the lower crankcase for emergency draining. Your dealer can perform this service |
|
|
Engine turns but fails to start |
Faulty ignition |
Install new spark plug(s). If engine still fails to start, check for spark. If there's no spark, Your dealer can perform this service. |
|
No fuel to engine |
|
|
|
Poor engine compression |
This indicates a major engine problem that must be repaired before operating. Your dealer can perform this service. |
|
|
Engine lacks power |
Fouled or defective spark plug(s) |
Replace the plug(s). |
|
Fuel filter (loss of high RPM power) |
Your dealer can perform this service. |
|
|
Plugged fuel filter or tank pick-up sock |
Your dealer can perform this service. |
|
|
Incorrect clutching |
Your dealer can perform this service. |
|
|
Engine continually backfires |
Faulty plug(s) |
Change plug(s), ensure caps are seated. |
|
Fuel System |
Dirt or ice may be in the fuel system (deicer should be added to non-ethanol fuel at all times for assurance against fuel line icing). |
|
|
Incorrect throttle freeplay or faulty switch |
Your dealer can perform this service. |
|
|
Engine requires more than normal pulls to start |
Poor fuel |
Replace with fresh winter fuel. |
|
Not enough fuel getting to engine |
Your dealer can perform this service. |
|
|
Plugged fuel filter or tank pick-up sock |
Your dealer can perform this service. |
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