AJS Highway Star 125, Owner'S Manual, Page: 51 / 61

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TROUBLESHOOTING
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Possible Cause Remedy
1) Defective spark plug.
2) Binding brakes.
3) Blocked air filter.
4) Blocked exhaust.
5) Defective spark plug cap.
6) Defective HT coil or connection.
7) Defective CDI
8) Blocked fuel vent.
9) Restricted fuel supply.
10) EFI system fault (eng. Light on)
1) Incorrect tappet clearances.
2) Brakes binding.
3) Air leak to the intake system.
4) Catalytic converter plugged.
5) Fuel cap vent blocked.
6) Water in the fuel.
7) Lack of compression.
8) O2 sensor faulty (eng. Light on)
9) TPS faulty (eng. Light on)
10) Faulty spark plug/s
1) Replace the spark plug.
2) Service the brakes / contact your AJS Dealer.
3) Replace the air filter.
4) Replace the exhaust muffler.
5) Replace the spark plug cap.
6) Check the connections / replace.
7) Check the connections / replace.
8) Contact your AJS Dealer.
9) Check for kinked pipes / blocked filter.
10) Contact your AJS Dealer.
1) Adjust the tappets to 0.15mm clearance each.
Inlet and Exhaust.
2) Service the brakes / contact your AJS Dealer.
3) Check the intake system for leaks.
4) Replace exhaust muffler.
5) Check the vent is breathing correctly.
6) Replace the fuel. Contact your AJS Dealer.
7) Contact your AJS Dealer.
8) Contact your AJS Dealer.
9) Contact your AJS Dealer.
10) Replace the spark plug/s