hi guys welcome to my channel in this video I'm gonna show you how to
replace coil in standard 50 cc pocket bike engine this is this is gonna be
step-by-step what you need to do to replace the coil how to do it properly
so let's start at first we need to remove these three bolts which holds the
pul start to the engine we remove them with the allen key, it's one two at the
bottom
and one here on the top now we can pull out the pull start here is the pull start
we can put that away now we can see here is the coil just here and it happens
sometimes that the coil is faulty you won't have a spark so you can order this coil
from the website the link is in the video and just replace it so to replace
the coil we need to disconnect this black wire the tiny black wire here just
disconnected and remove the wire from the coil from the spark plug now move
the same allen key just remove these two bolts which holds the coil to the engine
frame
this wire it's a ground wire it doesn't have to be exactly in this place you can
for example place it here and it will work the same way so for easy job I
would say move that top places here just place it here where is the pull start and
it will work the same so now when we have removed the bolts you can pull out
the coil and here is the coil as I said you may find the coil faulty so you just
you can just replace it it's only few dollars so we have removed the coil and I
will show you how to properly install new coil so when you receive the new
coil you place it in the same position but you need to be sure to leave the
proper space between the between the coil and flywheel not too close not too
far so my advice is you will see on the flywheel there are magnets here so the
coil actually stick into that magnets in this position yeah so you can
move the coil away take a black tape
put the black tape like that on the to cover the magnets place two layers
of the black tape and we'll cover the magnets when you cover the magnets turn
the magnets this direction when the coil comes they just simply place the coil
the coil will stick to the magnets and now just install and tighten the bolts
before you install the bolts I do highly recommend that use the you use one
of them it's a thread Locker so this bolts here
because of the high shaking vibration of the engine they like to loosen themself
they don't comes with spacers so it's good idea that you place the thread lock
on the thread before you install them now place first screw in and the second
because we put the tape you don't have to be worried about the proper space
right now just when the coil stick to the flywheel just tighten in
tighten in the second bolt make sure that the coil sticks to the flywheel now
tighten well both bolts but be careful this is aluminum so don't over tight
second screw now when we tight that you simply twist the flywheel and remove the
tape and that tape actually give you the proper space between the coil and
the flywheel as you can see when you turn it around it is not touching flywheel
anyplace and it is also very close to the flywheel so using the tape like that
this is the best method to actually install the coil and you can be sure
that the space between the coil and the flywheel is correct so when you when you
have installed the new coil make sure to place the wire on the spark plug connect
the black wire with the red wire or depends what what what wire is on your
wiring just connected again now we didn't install as I said before we didn't
install this wire back to the coil we will install this wire just here
where is the bolt holding the easy pull start so
put the wire on the bolt here make sure when you have easy pull start you will
see it's not fitting properly usually you need to pull a little bit and then
it will come to the place so when we have installed the pull start here you
can screw in the first bolt secure the wires with the zip ties just connect
them to the back to the body and you are done
as you can see replacing the coil it's very easy if you are afraid of the
making proper space between coil and the flywheel you can use that method with
the tape make sure to put two layers on the tape and it works great I hope this
video helps if you like my channel you like my videos please subscribe thanks a
million