fred_savage Posted January 28, 2018 Report Share Posted January 28, 2018 Anyone blowing out/flushing the various air ways in their ECU body? Quote Link to comment Share on other sites More sharing options...
sportsawyer Posted January 28, 2018 Report Share Posted January 28, 2018 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. 2 Quote Link to comment Share on other sites More sharing options...
brewtus Posted January 30, 2018 Report Share Posted January 30, 2018 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!! 2 Quote Link to comment Share on other sites More sharing options...
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