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bmxbandit
24-06-2007, 06:37 PM
hi been trying to start my bike and it wont start. there is no spark at all with a new and old spark plug. tested for continuity on most of the wiring loom. coil seems to be ok and also the killswitch. using a brand new ooracing cdi so cant see that been nackerd. also new inner rotor fitted about 2 month ago. any suggestions please?

Despise
24-06-2007, 06:43 PM
Im in the same situaton as you atm fitting a 140 lifan engine. Im next to change the ignition coil, cdi & if i have to the stator too. Also will give the pickup a clean. Im taking small steps before I do anything like the stator ect... I know my problem is electrical.

bmxbandit
25-06-2007, 05:14 PM
yeah i no this problem is definately electrical but where do you start. i found a wiring diagram but aint had a propper look at it yet.i had a guy fit a new inner rotor as my mate managed to snap off the pick up. this guy has crimped the wires together but not very well. hopefully by soldering the joints together i will get a better connection and hopefully a spark.

Despise
25-06-2007, 05:17 PM
All I know is that the engine I have was running before sent to me and now it dont want to run. My wiring is correct so Im sure it can only be something going on with the pick up for me. But Im to check everything anyway.

bmxbandit
25-06-2007, 05:26 PM
yeah good call. on mine it is only a two month old rotor kit so cant see it been that but i aint too sure. cant guarantee the quality of this guys workmanship or parts that he gets. hoping it is just his terminations on the new wires. cant understand it though cause one minute it worked fine then i operated the stop button to kill the engine then 2 mins later i tried to start it and it wouldn't start or get a spark?:confused:

Despise
25-06-2007, 06:18 PM
yeah good call. on mine it is only a two month old rotor kit so cant see it been that but i aint too sure. cant guarantee the quality of this guys workmanship or parts that he gets. hoping it is just his terminations on the new wires. cant understand it though cause one minute it worked fine then i operated the stop button to kill the engine then 2 mins later i tried to start it and it wouldn't start or get a spark?:confused:
sounds like the killswitch all together. Take off the killswitch as a test then start the bike. To kill it all you need to do is pull the ignition coil off the spark plug. If all is running happy then you will have to get yourself another killswitch. I dont have a killswitch on my bike as I got rid of it completely when it was causing me problems, to kill mine i use the igntion barrol which overously u dont have.

bmxbandit
25-06-2007, 07:46 PM
yeah i will try that tmoz. think i have already tried it tbh but i will give it another go.

Despise
25-06-2007, 11:30 PM
update: keeping the story short

Cleaned the stator& pickup. It fired up, wnet out for a blip, cut out on me a few times, cleaned it again, started up, bliped out done it again, got the van got me back to the garage, after that time elapsed just kicked it over 1st time and it started. Was adjusting the carb mixture then all a sudden it died. We had tried & placed everything electrical with spare parts i had and nothings wrong with them.

Conclusion: Everytime the stator gets hot the bike dies. A new stator is the only thing left for me to try out, it has to be that, everything else has been checked.

summary: Bloody hell I LOVE 140 Lifan ! :). Great when its going.

jameslanceley
25-06-2007, 11:33 PM
now ya can tell evri1 to buy one off me n dan :D since it looks like person who wer ment to be buyin it decided to get wheels instead lol

Despise
25-06-2007, 11:35 PM
now ya can tell evri1 to buy one off me n dan :D since it looks like person who wer ment to be buyin it decided to get wheels instead lol
Yes do buy one. I cant wipe the smile off my face even though I still have to replace the stator.

jameslanceley
25-06-2007, 11:36 PM
will ppl who buy mine n dans have the same problem as you did ???

dan-mel
25-06-2007, 11:47 PM
fooking hope not.

jameslanceley
25-06-2007, 11:56 PM
lol wey we have all the electrics with ours so i shouldnt think so

jthump110
25-06-2007, 11:58 PM
i think ste got it pretty cheap 2nd hand, so thats why they sold it to ste cuse the electrics dont work. well im guessing

jameslanceley
25-06-2007, 11:59 PM
lol well it cud explain why

Despise
26-06-2007, 12:53 AM
will ppl who buy mine n dans have the same problem as you did ???
stop joking nub

jameslanceley
26-06-2007, 12:54 AM
:thumbs: lol gess thats a no then glad t hear it :D

Despise
26-06-2007, 01:00 AM
:thumbs: lol gess thats a no then glad t hear it :D
its a no and, I think its a stator problem. I will look at it tomo after work. Il add again "I have had it running but I think the stator is giving out".

Does anyone know how to test the stator with a volt meter?

jameslanceley
26-06-2007, 01:02 AM
its like 1 in the mornin and your at work tomorrow do you not sleep lol

Despise
26-06-2007, 01:11 AM
its like 1 in the mornin and your at work tomorrow do you not sleep lol
im here all night baby :p lol. na, well I got to get up at 8 so thats ok :p

jameslanceley
26-06-2007, 01:13 AM
lol youll be shattered i stayed on ere l8 last ngt n wer up at 7 i wer shatad leest i got a lie in 2mz :D

rowie4
30-04-2010, 09:58 PM
hi been trying to start my bike and it wont start. there is no spark at all with a new and old spark plug. tested for continuity on most of the wiring loom. coil seems to be ok and also the killswitch. using a brand new ooracing cdi so cant see that been nackerd. also new inner rotor fitted about 2 month ago. any suggestions please?
yh i had exactly the same problem and i tryed evrything by replacing evrything and a person hu is very good with motorbike sed i wudnt get it started, and one day i was trying to take the flywheel off with a rubber mallet and i thaught i wud try my luck by starting it and it fired up first time and i found out that the stator plate wasnt touching the flywheel and if u smack the flywheel with it it shud work but dont count on me

toasty
01-05-2010, 02:01 AM
i had exactly the same problem with a yx140, as soon as it got warm it cut out and no spark. changed the obvious from another bike which ran perfect and no joy. As soon as it cooled down it started again. In the end i changed the stator plate and its been perfect ever since

steve

jeanlee411
01-05-2010, 03:03 AM
All I know is that the engine I have was running before sent to me and now it dont want to run. My wiring is correct so Im sure it can only be something going on with the pick up for me. But Im to check everything anyway.
yeah good call. on mine it is only a two month old rotor kit so cant see it been that but i aint too sure. cant guarantee the quality of this guys workmanship or parts that he gets. hoping it is just his terminations on the new wires. cant understand it though cause one minute it worked fine then i operated the stop button to kill the engine then 2 mins later i tried to start it and it wouldn't start or get a spark?:confused:


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Despise
01-05-2010, 10:50 AM
yeah good call. on mine it is only a two month old rotor kit so cant see it been that but i aint too sure. cant guarantee the quality of this guys workmanship or parts that he gets. hoping it is just his terminations on the new wires. cant understand it though cause one minute it worked fine then i operated the stop button to kill the engine then 2 mins later i tried to start it and it wouldn't start or get a spark?:confused:


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jeez, talk about digging up dead bodies (i mean threads)

I had checked everything I possibly could, I had no choice but to start changing components, something was on its way out, when the bike was getting hot it just didnt want nothing to do with it. Turned out to be the stator coil.

I would say to you to disconnect the killswitch 1st and try