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At least twice a year, disassemble the carburetor and clean up and purge its channels, check the capacity and serviceability of devices jets carburetor. By reducing the bandwidth of their jets rinse with acetone; when clogged they must be purged with compressed vozduhom.prochischat jets metal objects can not.
When it is worn needle valve parts are replaced with new ones. Tightness float verified lowering it in hot water: air trapped inside the float, heating, expanding and the presence of cracks in it comes out, forming bubbles. Cracks in the sealed float as small amount of solder to not burden the float.
In the operation may be impaired carburetor adjustment; moreover, adjustment must also vary somewhat depending on the operating conditions. when the vehicle is necessary ... summer orifice nozzle; for this purpose, some carburetors provide a special adjustment needle.
The fuel level in the float chamber may vary as a result of the closing of the needle valve wear or change in weight of the float; fuel level is usually adjusted podgibaniem special tab on the float, which acts on the shut-off valve.
Periodically make adjustment of the minimum speed of the crankshaft at engine idle (after the engine has warmed up, stop screw on the throttle set minimum stable idle speed - 350 - 400 rev / min.
amount of fuel injected accelerating pump should be changed depending on the engine operating conditions (summer or winter). For this provides the ability to change the acceleration pump stroke by changing the lever arm in the drive system of the pump.
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