Brand new bike intermitently cuts out whilst traveling at 20 30 mph. Half a tank of petrol. The electrics die and the bike stops. Second bike I've to do this. But the shop said it can't find the problem with the first bike and it doesn't do it when they ride them. They have changed the fuel system, looked at venting issues and rebored the valves. What could be causing the bikes to do this?
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Let me get ths straight, there is petrol leaking out of your bike, more or less between your legs and you are still riding it??? STOP, if you have no concern for yourself, consider othrs around you. Dont ride this motorcycle until you find and repair the problem. I would suspect a vent or fuel line but it could be the carb over flow or a hole in the tank. Please get it fixed before you ride again.
IT sounds like fuel starvation has it got a vacume petrol tap if so it could be that not letting petrol through sometimes or the vacume pipe is split or kinked or squashed
when the engine dies pull out the spark plug and earth the plug on the metal part and turn it over dont hold the spark plug as you will get a shock if the plug sparks you know the ignition system is working.if you have no spark do a compresion test to see if there is a problem with the engine.if that ok you will have a fuel problem make sure the breather on the fuel tank isn blocked or trapped.
Hi
If all the electrics go off then :-
A) Check tightness of battery terminals & condition of battery
B) Check for dodgy fuse or dirty connections
C) Check voltage across battery terminals when engine running - should be at least 12.5v rising with increasing revs to 15v max - if not then suspect the regulator/rectifier unit or the wiring from it to battery
I hope this helps, if so please mark as helpful.
Positive comments always appreciated
yes it is possible. buy yourself a can of WD40 (penetrating oil)... spray all electrical parts and wiring you can see with that. it will repel the water but it does not conduct electricity. also buy a bottle of gas line antifreeze and put half of it in your fuel tank. it sucks up any water you may have in your fuel (petrol)
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