rb968
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| posted on 2/2/10 at 09:15 PM |
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Running on 3 cylinders?
In the garage - posting via my phone - and my zx9 engine is running on 3 cylinders. We have stripped and cleaned and checked the carb on cylinder 1
but it will only run if i almost completely cover the inlet therefore starving it of air. Then it fires. New spark plug - spark is good - fuel bowl
full and screw set as per other carbs. Needle etc all seems fine. Is it an air leak somewhere? Have checked the inlet rubber and o-ring. Can it be the
exhaust letting in air? Any suggestions?
Rich
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Andy S
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| posted on 2/2/10 at 09:18 PM |
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First step - compression test.
quote:
Originally posted by rb968
In the garage - posting via my phone - and my zx9 engine is running on 3 cylinders. We have stripped and cleaned and checked the carb on cylinder 1
but it will only run if i almost completely cover the inlet therefore starving it of air. Then it fires. New spark plug - spark is good - fuel bowl
full and screw set as per other carbs. Needle etc all seems fine. Is it an air leak somewhere? Have checked the inlet rubber and o-ring. Can it be the
exhaust letting in air? Any suggestions?
Rich
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rb968
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| posted on 2/2/10 at 09:27 PM |
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Bit beyond my capabilities tonight but thanks. Anything else obvious i might have overlooked?
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gottabedone
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| posted on 3/2/10 at 07:01 AM |
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When you cover the intake like that you are effectively raising the fuel/air ratio. Is your carb letting enough fuel through. If you make any
changes to your carbs - note down what they were so that you can go back to where you were if you need to.
Steve
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rb968
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| posted on 4/2/10 at 11:11 PM |
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cleaned the jets again looks like the pilot jet was blocked . now running on 4 cylinders . phew!
[Edited on 4/2/10 by rb968]
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