[QUOTE=sibun;1108242]There are four reasons why a FI engine will run lean. The reasons are:-
1. Fuel filter clogged due to dirt. This in return will not allow fuel pump to suck enough amount of fuel and thus bike will run lean. With the quality of petrol available can be a cause.
2. Injector dirty- A dirty injector will cause improper fuel spray. ZMR has 12 hole injectors. The holes are as small as your hair. If a few holes are dirty then also it will cause improper fuel spray. Use system G for some days and it will clean, else you have to clean the injector manually from those MICO diesels or Lucas TVS shops.
3. MAF sensor dirty- The maf sensor is located in the throttle body. If its gets dirty it will send error in amount of air coming in the cylinder and in turn will cause engine to run lean.
4. O2 sensor- Remember Karizma runs closed loop at part throttle. If there is some carbon deposits on the O2 sensor in exhaust it will cause the ECU to read bike is running rich and will thus make the ECU to lean out the mixture.
Really informative

Sent from my XT1022


how did you manage to do it?


let me know when you can source them.. please PM me your account details and the charges for courier so that I can transfer the amount to you

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