My battery isnt getting charged on my motorbike from engine

Mike, engine oil level on motorcycles are normally checked with bike on level ground on center stand (not leaning or tilting in any direction), or have an assistant hold bike straight while level is checked.
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How To Check The Oil On Motorcycle
How to Check Motorbike Engine Oil Level 6 steps
CHECKING YOUR OIL LEVEL

IF IT IS NEW YOU NEED TO TAKE IT BACK TO WHERE YOU GOT IT BECAUSE IT IS UNDER WARRENTY,SHOULD BE AND IT WONT COST YOU ANYTHING,OR MAKE SURE YOUR BATTERY IS 12 VOLTS CHARGED BEFORE TESTING ANYTHING ELECTRICAL SO YOU ARE GETTING A TRUE READING.OBVIOUSLY CHECK FUSES.IT IS QUITE POSSIBLE YOU MAY OF GOTTEN A BATTERY WITH A BAD CELL,IT HAPPENS BIKES ARE SHIPPED IN THE FALL AND IF YOU BOUGHT YOURS IN THE SPRING ,MY GUESS IT WAS LEFT CRATED OUTSIDE FOR THE WINTER

you will need a volt meter across the battery,
it should read around 12v with the engine stopped and rise to around 13-14v with the engine running.

If the reading doesnt rise when it starts, then it isnt charging and the regulator\rectifier is the next step.

If you are getting a voltage rise and turning the lights on stops the bike, then there may be a problem in the switches, on \off high \low

sounds like the problem is your battery is not charging when you are riding. The most common cause is a faulty regulator / rectifier. Contact a motorcycle wreckers for these parts, or your yamaha dealer.
Easy way to test is, when your bike is running, and the lights start to dim, before the bike shuts down, using a volt meter, test the voltage at the battery terminals, should be about 14V. If faulty rectifier,no charge going in to your battery, then the reading will be low, about only a few volts. If you dont have a volt meter, then any mechanic shop can do this test for you. best to have this done before buying any parts.

Hi, Do you have an alarm & Immobiliser fitted on your bike as these drain the battery on your bike very quickly? If so i would recommend removing your battery and fully charging it with a decent amp-age charger. If you have your garage attached to your house then i would definitely recommend purchasing a trickle charger and when not using your bike keep this plugged into the mains and you should not have this problem again. all motorbike shops sell these chargers If after this the battery goes flat again i would suggest purchasing a new battery. This is a common fault as most motorbikes sit in the garage through the winter months and if not kept on charge will deteriorate. Hope this helps.

Yes this is evident in replacing engine oil to motorcycle engine.

Engine oil designed for automobiles isnt good for motorbikes as they offer additives for added "slipping". THis will cause your clutch to slip. Automobile Engine's oil system is separate from the clutch while motorcycle's clutch and engine fall under one oil system.

Use engine oil designed for motorcycles.
Solution: Buy and Engine flush, pour it to your crankshaft, run the engine for 5 minutes (idle) then drain. Replace with new motorcycle oil.
-levibit-

Make sure the new battery has fresh acid in the cells. I did the same thing with a battery I bought and forgot to add the acid and charge the battery up so my bike didn't start. Got distracted with the wife's todo list....

could be either a short to ground, or a duff battery. i have a 650 v star and if i dont start my bike at least once a week then i will have to get the booster on it to get it going. my battery is less than a year old but i guessed i bought the cheapest one. it is fine when i ride it recharges but it will deplete over 2 weeks. if it is not charging when you ride then have your charging system checked.

sounds like you have got dead cells in your battery , they wont hold a charge , the loud click was probably the cells in the battery arking and killing the cells off ,id fit a new battery and all should be well.
hope this helps
kind regards
bert31000