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Old 29-11-17, 08:05 AM   #5
Craig380
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Join Date: May 2015
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Default Re: Curvy Cold Starting Needs Running Start

All the above is good advice, if you have a multimeter you can check the voltage across the battery terminals when the bike is running, which will give you a good idea of what's happening. Voltage should be over 13V at fast idle and over 14V (but less than 15V) at a steady 4,000 rpm.

However, one thing to try before you do all the electrical checks. Are the main earth points for the loom, and the connection to the starter nice and clean? If those connections are dirty, corroded etc then they can also cause the symptoms you describe. Give the main earth connection (at the rear right of the engine, have a look with a torch and you'll see it, it connects to one of the rear clutch cover bolts) and the connection to the starter a good hosing down with WD40 and make sure they are tight.
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