Just bought my girlfriend this bike so we can ride together took it out for the first time got her on it off up the hill she went got towards the top bit to stiff and a bit too much throttle and up she came flipped off the back on grass nothing to bad she was ok pretty much just stepped off it ,but now the bike has no spark can anyone help I've started stripping but just need a bit of help now all plugs connecters look ok many thanks Dave (bristol )

Edited September 27, 20178 yr by fatboyz

 Can I some how test the coil and cdi ???? 

 You might want to pull the flywheel and check the wood rough key has not sheared.

2 hours ago, lineaway said:

 You might want to pull the flywheel and check the wood rough key has not sheared.

I was the thinking about that but wouldn't it still spark just not at the right time , the flywheel doesn't seem loose and spins when it's kicked over , thanks for your help 

On older bikes, as yours is, I'd hazard a guess, the fall has dislodged one of your spade connectors.

 

We all change a lot of the consumables, but cheap spade connectors deteriorate over time but we never check 'em. Get the tank off and have a look and feel. Pull and check each one, looking is never the same as feeling!

Edited September 27, 20178 yr by jonboy883

Often the kill switch wires along the handlebars get pinched and short out...would look at this or completely unplug it before checking anything else...Your starting your girlfriend out on a 321...?

Thanks for all the ideas I did try the kill switch and will change all the spades I can find tonight , as for the girlfriend starting on a 321 its all I could find at good money , I wanted a 125 really but this one came up local at a good price 

Thanks for all the ideas I did try the kill switch and will change all the spades I can find tonight , as for the girlfriend starting on a 321 its all I could find at good money , I wanted a 125 really but this one came up local at a good price 

I've just been out now check continuity each side of all plugs and connectors spades etc ...... nothing , checked continuity with the 3 wires just as they come out the engine to plug at the top too , starting to get annoyed now ?? any ideas peops ???

I'd go with checking the Woodruff key.  If the flywheel has moved sufficiently then the timing will be so far out that you won't get a spark.  Easy job, if you have the tools of course.

Ah ok cool thanks for your help I don't have a puller for the flywheel tho , may ask about a few mates are into there bikes maybe they will have one ? thanks

Anyone know what ohms readout I should be getting from the ignition coil ?? Thanks for all your help guys 

I have to ask if you even really know what sort of spark you are looking for!  Them things will only throw a weak blue spark that one may only see in a dark shed! And then only .5mm!

Hi I'm 99% sure there is none I will check in a dark shed later but I have a thing that goes In line to the plug that flashes when the plug sparks and nothing I tested the coil ohms values but I'm unsure of what they should be ?

Nubsey will lend you his grandson to stick his finger up the plug cap to test for current☺