I was wondering if someone could help. I recently posted a thread on this topic a couple of weeks ago. But i feel i need to start fresh. My bike is a 2001 5th gen i believe, VFR 800fi. Bought about 6 months ago. Here's what happened. 1. Bike completely died while riding it. Just cut out dead. 2. Suspected battery. phoned local mechanic. He prepared battery for me. 3. Picked it up. He told me i should pop bike in to check rectifier. 4. Did so. Rode the bike 5 miles to shop. Rectifier had fried. Replaced rectifier. 5. All good. 6. 6-8 weeks later bike cut out. This time the bike didn't die the same. I filled up with petrol. Sat on bike and the bike wouldn't start. But this time the bike tried to turn over. But could't quite do it. 7. Walked it to parents house. 8. Uncle took battery home and tested it. It was low and needed charging. 9. My uncle advised me to buy an optimiser. He thought the bike wasn't being used for distances long enough to charge battery properly. I do about 5-7 miles at a time. Now as i understand it. And i am happy to be corrected. The battery powers the bike, the stator feeds back charge to battery via the rectifier which changes the current from AC to DC or vise versa? So i understand i could have a faulty Stator. And i need to find out. And this is what the drill will determine The optimiser being used every night is just a band aid as someone called it. Now thanks to Skimad 4x4 and normk i realize i need to perform the drill. Now i live in the UK. And if it's simple i'd like to do the drill myself. Now here are my questions. Any advise is well appreciated. 1. Can i perform the drill myself? Now i can change battery, do an oil filter change, coolant change and general maintenance. But that's about it. What do i need to perform a drill. Just a voltmeter? obviously i have spanners and screwdrivers. But is there anything else i need? 3. Could someone please help me with the figures i am hoping for? I will find out but i don't even know what a battery is meant to read. Stupid i know. The drill needs performing hot and cold. Should the results be the same hot and cold? 4. Can just using a optimiser for now do any damage to any parts? 5. The low light on my Honda heated grips flashes when i have my lights on. Is this normal or is it connected to my problem. It can't be telling me the battery's low. because it happens when optimiser has completely charged battery. 6. Would this voltmeter be correct? http://www.amazon.co.uk/Compact-Dig...UTF8&qid=1416773397&sr=8-2&keywords=voltmeter Thanks for any help. All posts will be read and appreciated. Oh and 7. Does anyone live on the south coast of England who can help me. Long shot but you never know.