Stuart85 Posted January 8, 2019 Share Posted January 8, 2019 Hi I was driving my Honda cbf 125 2009 m down the the A45 carriageway and slowed down go to the roundabout and the bike started to choke and died it had a half a tank of petrol and I filled it up before I left and it has had a ne battery can anyone help Quote Link to comment Share on other sites More sharing options...
mikestrivens Posted January 8, 2019 Share Posted January 8, 2019 When was it last serviced? Check easy things first spark plug, wiring, choke, fuel. Quote Link to comment Share on other sites More sharing options...
Stuart85 Posted January 8, 2019 Author Share Posted January 8, 2019 It’s just had an oil change as I put a new alternator on and it’s a new wiring loom and check the spark plug and I have a full tank of fuel also I use the ultimate unleaded a friend said it could have some crap in the Carb he said to strip it down where someone said about that cleaner you can put it the tank Quote Link to comment Share on other sites More sharing options...
Westbeef Posted January 8, 2019 Share Posted January 8, 2019 It’s just had an oil change as I put a new alternator on and it’s a new wiring loom and check the spark plug and I have a full tank of fuel also I use the ultimate unleaded a friend said it could have some crap in the Carb he said to strip it down where someone said about that cleaner you can put it the tank It's FI so doubt it's crap in your carb .Are all your connections good after you've swapped the alternator? Quote Link to comment Share on other sites More sharing options...
TimR Posted January 8, 2019 Share Posted January 8, 2019 check fuel receipt to make sure it was petrol you put in ... Quote Link to comment Share on other sites More sharing options...
Mississippi Bullfrog Posted January 11, 2019 Share Posted January 11, 2019 If it happened immediately after adding fuel then as said check the fuel put in. If it was petrol then it's possible it was contaminated. I've had it happen where the storage tank had water get into it. In theory modern petrol should be less prone to water contamination because the ethanol in it allows the water to form an emulsion which can then be burnt with the petrol. But the ultimate fuel has less ethanol so you're actually losing out by using it. (Also bike engines don't have the kind of management systems that make ultimate fuel work any better so you're wasting money putting it in a bike )An old trick is to add a cupful of methylated spirits which acts the same as ethanol. Water and petrol don't mix but meths can mix with any water present, then the resulting emulsion can be burnt in the engine.There are of course many other possible causes for your problem. Quote Link to comment Share on other sites More sharing options...
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