That is a recall and all are replaced with a design change and are not charged to do. Second is the Hot Start thing.
-Harley Davidson Touring Series (2007-2016) -Harley Davidson Softail (Milwaukee 8) (2018 - 2020) -Harley Davidson Sportster (2017 - 2020) To avoid this, we suggest using the original control module if possible.Rebuild and sustained performance testing of moduleFinal test to ensure issues have been correctedOur new website includes a new review platform. If you'd like to see testimonials from our previous website, click here.
But the correct idle speed depends on the type of engine and the air/fuel ratio, so first step is to consult the user manual.Our firm recommandation is to keep the idle at the factory level, and if you must change it, you should aim for slightly higher idle level. And you will usually not be able to adjust the idle level in any way.Usually we see the idle speed being between 10 RPM (engine revolutions per minute) when the engine is at operating temperature, and often as bit higher during warm up. The same system is used on the first generations of fuel injected motorcycle engines.On the newer fuel injection systems, the throttle valve is controlled but a small stepper engine, and it is the fuel injection ECU (a computer) that is controlling the idle level. -Husqvarna Vitpilen and Svartpilen SeriesOn the older motorcycles where a carburettor is mixing air and fuel, the idle level is set by a simple stop screv that prevents the throttle valves from closing completely, and you can simply turn this screw in or out to adjust the idle level.
Please note that we are focusing on fuel injected motorcycles here, so the list of root causes does not necessarily apply to the older carburettor bikes.If the idle level on your (warmed up) engine is lower than the level decided by the manufactorer, you will usually have two problems:- The engine will easily stall - especially on take off- The oil pressure inside the engine will be very low, and you may see the oil pressure lamp flicker.Here is a list of possible root causes - not in any particulary order_- Idle stop screw or eletronic idle level setting not adjusted correctly (This is the obvious one that everyone thinks of first)- Too lean Air/fuel ratio (the mixture is already borderline lean on the stock bike, so if you installed an aftermarket exhausts and/or air filters that flows more air, you will be running even leaner than stock)- Throttle position sensor (TPS) not correctly adjusted- Charcoal cannister in the tank ventilation line clogged by fuel or dirt.A high idle level is not dangerous for your motorcycle, but it have a few disadvantages and it's still a sign that something is not right.If the idle is too high, the main problems are these:- You may hear a rather loud "Clunk" noise when first gear is engaged.Here is a list of possible root causes - still not in any particulary order_- Idle stop screw or eletronic idle level setting not adjusted correctly (probably not a big surprise.)- Throttle cable jammed so the throttle valves can not close.- Cable to cold start lever jammed so the throttle valves can not close.
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