Echo CS-610 Service Data

Contents

Echo CS-610 Service Data Manual pdf 10 page image

ABAB(E)(D) (C)(F)(f)2-3 Adjusting carburettor1. Start and warm engine for 1 minute alternatingengine speed between WOT and idle every 5 sec-onds. Turn H mixture needle (D) anticlockwise untilengine speed drops to approx. 11,500 r/min at WOT.NOTE : Do not run engine at high speed withoutload longer than 10 seconds, or engine damagemay occur.2. Adjust L mixture needle (C) using 2.5mm bladescrewdriver to reach maximum engine speed justbefore lean speed drop off.3. Set idle speed to 3,600 r/min by turning Idleadjust screw (E). Engine speed should be stableat 3,600 +/- 50 r/min after Idle adjust screwadjustment.4. Turn L mixture needle (C) anticlockwise reducing engine idle speed 800 r/min to set idle speed at 2,800r/min. The idle speed range is 2,750 - 2,850 r/min.NOTE : Engine speed must be allowed to stabilize a minimum of 20 seconds after each adjustment of Lmixture needle to assure accurate tachometer readings.5. Before adjustment, WOT engine speed should be 11,500 r/min or less. If engine speed is higher, turnH mixture needle anticlockwise until 11,500 r/min is achieved. To make the final WOT engine speed ad-justment, turn the H mixture needle clockwise in 1/8 turn increments with the engine at idle. After eachadjustment, accelerate to WOT, and check speed. The final speed should fall within 12,100 - 12,300 r/minat WOT.NOTE : When the H mixture needle is turned completely clockwise, the engine will continue to run. If theengine speed at WOT is above 13,300 r/min, adjust H mixture needle anticlockwise and set maximumengine speed at less than 13,000 r/min.6. After adjusting carburettor, put new limitercap on the other side (f) of limiter cap tool (F) asshown. Align the limiter cap’s tabs (A) with locatingslots (B) in extended housing of carburettor andpress the limiter caps to the bottoms on L and Hmixture needles respectively.IMPORTANT : The limiter caps must be properly installed on L and H mixture needles to complywith Emission Directive.7. Start engine, and verify engine idle speed ranges from 2,600 to 3,200 r/min, and WOT engine speedranges from 11,800 to 12,800 r/min. Make sure the chain does not rotate when engine is idling. Whenfinal adjustment is completed, the engine should idle, accelerate smoothly, and attain WOT per abovespecifications.SERVICE INFORMATION CS-61010

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