uncle6000

Hi all I have a CY engine with no spark any ideas.I have just fitted a new coil and plug but still nothing.could it be the coil trigger and what do the three wires do.I joined the two red and just left the black with tape on it.also the flywheel magnets there is three of them the middle one is quite strong but the outer two seem weak is this right.The key way seems to be fine so it has not slipped I am at a loss here and have no more ideas.Any help guys and hello from Australia.Shayne

Ron Olson

My Feedback: (1)

Check it in the dark if you haven't done so already as it's very hard to see the spark in the light. Take the plug gap down to .016".

Scott Schneider

Also make sure area of coil mounting is free of corrosion ( Even run a file across it to clean up ) and back of coil in contact with case is clean and bare metal.
* Unless coil has a good ground back to crankcase spark won't happen !
I know ... Duh ... Try another plug also

wilsta67

disconect your kill switch if there is one and see if that helps if it does could be a dodgy switch.
also use a cardboard buisness card to set the pick up coil gap its about the correct thickness.

Ron Olson

My Feedback: (1)

No, you don't want to ground that wire or it'll never start!

wilsta67

my bad i just edited my post you do if your running a kill switch so i gather he isnt.

wilsta67

i dont have my cy motor anymore to have a look but do they only have 1 coil unlike the zenoahs have 2.??

Ron Olson

My Feedback: (1)

I've got 2 Sikk's sitting in my basement so it's esier for me to reference to them.

uncle6000

Thanks everyone to answer a few questions yes it has two coils,yes I did clean under the coil,no kill switch,checked for spark in the dark,tryed a new plug even hooked new plug to a wipper snipper plenty spark there,By the way this is a new motor never been run had it some months just sitting on a shelf.I picked up a new coil from hobby shop still no spark.The only thing left is the coil trigger or maybe the flywheel is bad.Anyone know if the magnets could be too weak is that possible and how can I test the coils.Anymore ideas welcome.

tapkoote

Uncle

uncle6000

Thanks tap your the man I cut the cap away and yes that was it.Works fine now thanks so much
UNCLE