Will not start from cold

Measure the battery voltage with the engine running. It should show a charge, 13+ volts on the battery. If not fault find the charging system.

its an alternator not magneto, there should be 3 wires white or yellow, going to the reg\rectifier, multi meter across any pair(unplugged) should show 50-80 volts at 2000rpm non of these should short to earth, multi meter across battery should show up to 14v at 2-3000rpm.with everything plugged back in
if alternator checks out, and no voltage more than 12 at battery , replace regulator,,

all assuming the battery wasn't fried when it ran out of acid

my guess is new stator\alternator required

Might be the camera's battery terminals, not the battery itself. Take a qtip and some isopropyl aclohol and clean the terminals in the battery well of camera.

Hi erik
My first point of call would be to clean the spark plug, it could have gotten corroded while the bike has been standing. Hope this helps.

your BMW75 has a cold start sensor fitted to its fule system the choke leaver dose nothing but raze the reves a little its not a choke,,,thats withing the fule system if the sensor is not working right it wont tell the fule pump to enrich the fule mix and it will be hard to start from cold,,also if you start the bike up you must run it till its hot or the choke will stay on and flood up the engine the next time you try to start up
the choke sensor is in the water jaket, try changing this part first

the battery is charging ok if not the bike wouldnt run-ur starter motor needs inspection-maybe the rotor or brushes r froze-1st chec wiring that gos to the starter-could be loose or bad-with a manual u can disasemble n test the motor-ni dong ma zai jian

sounds like a charging system. same thing happens with cars when the alternator goes kaput. so i would say check your charging system weather it be an alternator or generator.

Hi guys

if u buy new battery for around 35$... its creepy thing that it again sucks within
6 month
so follow these procedure that i really got good response

1)Buy the new battery from any other dealers (u can use Nokia (std) or LG, Micromax, Onida... etc)
having same specifications as 1050mAh Lion-POLYMER 3.7v and having equivalent Size that fit into the case.

2)Now open ur dead battery, remove the sticker slowly, u wil get the polythene bag carrying the charge sheets
.
3)Please note that dont not disturb this polythene bag... (cutting, drilling or pinning), else it starts burning.

4)U will see a circuit above the polyhthene bag having two poles (+ve n -ve) just cut the poles of bag from the circuit and keep the bag aside

5)Now do the same procedure with new batt and remove the polythene bag.. and soilder with
the dead battery circuit. (check the +ve n -ve by multimeter)

5)Re-assemble with insulation tape and recondition it perfectly.
now check poles bofore starting.

Note : i got good result from this and i m getting 18-19hrs standby and 11-15hrs usage. Do it on ur own risk...and i m not responsable for ny harm)

Yes, it could be the regulator. Running a battery flat MAY kill it, so try to recharge it and then load test it. Put a fully charged battery in the bike. Hook up a voltmeter and start the bike. Rev engine to about 3-4000 rpm. If your regulator is working you should be getting about 14v. If the reading does not change from what it was before you started the bike, your charging system is not working. Do test the parts before you simply replace them.

if it is cranking over and just not firing i would drain your float bowl which you will see a tube coming out the bottom of your carb. it will have a screw right above it loosen that and gas should drain out.i would also think about draining your gas in your tank and putting fresh in.possible new spark plug