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bedjo78
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« on: November 11, 2014, 04:43:30 am » |
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I have a strange problem with one of the IDA throttle. missfire happened on cylinder 2. I cleaned carbs 3 times and change plugs 5 times and changed manifold gaskets 3 times. but i never got the cylinder 2 fired. the plug seem to dry. short story i swap over the carbs from left to right and viseversa. now cylinder 2 fired good and the problem moved to cylinder 3. assuming the carbs was the problem. what would be causing the carbs did not delivered fuel...
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leec
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« Reply #1 on: November 11, 2014, 10:25:45 am » |
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Blocked jet?
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Udo
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« Reply #2 on: November 11, 2014, 13:03:32 pm » |
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idel jet or channel
Udo
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spanners
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« Reply #3 on: November 11, 2014, 19:01:14 pm » |
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idel jet or channel
Udo
This Every time, unscrew the idle slightly with the motor running, if the jet is plugged it will kick in now, the fuel goes round the jet, if it don't kick in, the channel is likely to be plugged. |
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Best regards, spanners.
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bedjo78
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« Reply #4 on: November 12, 2014, 04:28:11 am » |
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I have done several adjustment on idle screw. fully screw in, a half anf fully screw out not make any different. I think will be the channel. any suggestion how we clean the channel. i have cleaned it 3 time using carb cleaner and blow it with air. i think i will soak it on diesel or kerosene for days.
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cnfabo
Newbie
Posts: 14
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« Reply #5 on: November 12, 2014, 13:04:35 pm » |
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I have done several adjustment on idle screw. fully screw in, a half anf fully screw out not make any different. I think will be the channel. any suggestion how we clean the channel. i have cleaned it 3 time using carb cleaner and blow it with air. i think i will soak it on diesel or kerosene for days.
Ultrasonic cleaner,if that's what they are called |
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Dougy Dee
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« Reply #6 on: November 12, 2014, 14:55:11 pm » |
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I have done several adjustment on idle screw. fully screw in, a half anf fully screw out not make any different. I think will be the channel. any suggestion how we clean the channel. i have cleaned it 3 time using carb cleaner and blow it with air. i think i will soak it on diesel or kerosene for days.
Back off the idle JET not the screw... |
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spanners
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« Reply #7 on: November 12, 2014, 15:56:36 pm » |
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Back off the idle JET not the screw... ^^^^^^^^^^^^^ THIS^^^^***********. .. Another possibility is a twisted throttle shaft.... |
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Best regards, spanners.
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bedjo78
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« Reply #8 on: November 13, 2014, 14:00:01 pm » |
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the carbs was working good on last race. arround 3 months ago. also I have swap arround idle jet and holders as well as main jet. but nothing change. I think i will send it for ultrasonic clean. there are company that clean injector may able to do it.
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Udo
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« Reply #9 on: November 13, 2014, 18:16:58 pm » |
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If the throttle area is bored too big the idle screw can break through the case so it can not work correct . Look at the hole for the screw at the throttle
Udo
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bedjo78
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« Reply #10 on: November 16, 2014, 01:28:59 am » |
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thanks all of your advices. the carbs is back to normal. i think blocked on channel.  |
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Jimbo01
Newbie
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« Reply #11 on: November 18, 2014, 03:01:06 am » |
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I am having the same problem. What did you end up doing to correct the issue?
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