An expert who has achieved level 2 by getting 100 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert that has over 500 points.
Re: will not start from cold
I suspect spark is good, The 3 things you need to get any motor running is fuel, spark and compression. If you have all 3 in good condition, it should run fine. But the 1st obvious check is the fuel. Drain tank or at least smell fuel and see if it smells like varnish. If it does, drain tank and carb and refill with fresh fuel and this time put fuel stable in it. I have had fuel for as long as 3 years with stabil in it and it works fine. So give that a try first and then we will go from there. Have a good one and happy holidays....Sincerely Jay
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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
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
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
If your bike was exposed to very hot or very cold weather for awhile that would be sufficient to weaken your battery. Heat and cold can drain a battery of power so it's important to check the battery hydro levels frequently and run a trickle charge during off-season.,,,