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Old 14 May 2019, 22:46   #11
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Usually the jet are fixed in a carb. The only adjustment will be the idle screw. I would boil the carb body to get rid of any gunge or dirt in the galleries.
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Old 14 May 2019, 23:38   #12
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Prety simple carbs no real adjustments just dont mess with the linkage lengths or throttle stops. a cheap ultrasonic bath is a good investment for cleaning carbs but usually a complete strip and removal of all the brass jets and a blow out with air line & or carb cleaner will sort
Idle screws are usually 1.5 turns out from lightly seated thats the only real setting there is
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Old 15 May 2019, 11:36   #13
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Okay all.. just started the strip down but thought I would take a look at the plugs before I got the carbs off.. Plugs were new about 12hrs ago.. they are black.. is this normal? They already almost look like the plugs I took off and they had been on 5yrs.. 2 weeks use a year...
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Old 15 May 2019, 12:30   #14
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No itís not they should be a medium to light brown. Your fuel mixture may be too rich or there is no air getting to the fuel
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Old 15 May 2019, 12:58   #15
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Well I am stripping down the 3 carbs.. First one looks clean.. fuel looks good.. no water etc..
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Old 15 May 2019, 13:01   #16
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Noticed the top carb was slightly open when the rest are closed.. so they might need balancing.. could this cause the lumps at idle and it to run rich?
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Old 15 May 2019, 15:27   #17
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Lumpy idle yes running rich no there is not enough air getting in the pilot jet may well be blocked as others have said
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Old 15 May 2019, 15:46   #18
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Thanks for all the advice guys.. I have stripped down the top carb (which is way more than I have ever done before!) and there are 3 of them!
Fuel came up clean.. removed the 2 jets but there are 3 other bits of brass I cannot remove.. 1 look like it jets the fuel into the carb but no way of removing.. and 2 under a little rubber covered gasket on top of the carb.. trying to find a youtube vid of my carbs as I have no clue what I am looking at.. lol..
Final question, can I place the carbs in the ultrasonic bath with the brass bits still in?
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Old 15 May 2019, 15:50   #19
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Yes you can use white vinegar to clean them as well it will de grease
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Old 15 May 2019, 16:07   #20
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cheers Neil
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