January 28, 20188 yr Other than the bore, the only air-way is the idle air passage. There's a small hole on the engine side of the butterfly valve, but that goes to the MAP sensor and is not a through-hole or passage. The air temperature sensor (in bore channel on air filter side of the butterfly valve) and MAP sensor mount directly to the ECU PC-board, and have seals to protect the electronics from the TB bore. So I'd avoid compressed air in the bore to blow things out, as it may damage the sensor seals. If you take out the idle-adjust screw, you may be able to carefully use compressed air to blow out the idle air circuit / passages from the idle-adjust screw hole (TB/ECU off bike). For cleaning the TB/ECU, I recall Honda recommending warm, soapy water and to NOT use carb cleaner.
January 30, 20188 yr On 1/28/2018 at 7:58 AM, sportsawyer said: For cleaning the TB/ECU, I recall Honda recommending warm, soapy water and to NOT use carb cleaner. Verified. Do NOT use carb cleaner!!
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