put the screwdriver just here to hold the clutch
hi guys and welcome back to Mini Bikes Store a video blog
in today's video I'm gonna show you how to replace
a clutch in the 49cc 9 horsepower engine which is in the NRG 50
dirt bikes from Nitro Motors this is a replica of KTM engine so if you own KTM
you can also follow this video step by step how to replace the clutch
so I will show you how to do it without any special tools so you can do it
yourself at home so first we need to drain the oil from the gearbox this is
the screw you will have to remove it and drain the oil make sure you have the
bucket for the oil
so let the oil drop into the bucket we can also remove the bolt here on the top
we have to loosen all these bolts here this one's here so loosen all this 2,4,6 bolts
we can actually remove all these bolts
so we have now removed all the bolts which hold the cover into the engine now we can open the cover
little bit just don't damage the gasket so be very careful you can do it like this
the oil is coming out of the gearbox so wait
do not damage the gasket
so we have the gearbox now open and we have to remove the clutch to do so we
have to unscrew this nut here which holds the clutch to do so you need a
spanner number 16 put the screwdriver just here to hold the clutch
and unscrew the clutch
now you have to pull the clutch out after you remove the nut from the
camshaft you have to pull out the clutch which can be very difficult there are
special pullers you can buy online but here I have one which I made myself it's
just a good quality washer we have drilled two holes here for the
bolts to hold the clutch so you insert the washer just like this there are two
little holes here in the clutch
and second one
now I have a puller like this in my garage which I will be using here
as you can see it's not easy
and here it is, the clutch is out
you can see the clutch is holding really well it's pretty hard to remove it
but you can simply made the puller like this
like I made it just off the simple washer and this is a standard puller you can get it
in any shop or you may have one of them so so we have removed the clutch now and
we will instal the new one so here it is it is the new one I won't actually install
the new one because this one is actually almost brand new the bike was only used
for few hours so I will install back this clutch the old one so it's the reverse
procedure you have to place the clutch in place like this use the spanner like
this place it and you can just hit it a few times so it will sit
well in position so when you have done that just insert the nut
next put the screwdriver just here in the hole to hold it and with spaner
number 16 just tighten the nut well
like this
now you have to install the cover of the gearbox
so here we have the cover so first place the gasket
actually place the gasket here
and the bolts through it make sure the gasket will be in position
tighten two bolts just a little bit
now insert the rest of the bolts
just make sure the gasket is properly inserted
and now tighten all 6 bolts well
next insert this bolt here which you can drain the oil from the gearbox
next top-up oil
so this is how you replace the clutch in the 49 cc two-stroke kickstart engines this is a
copies of the KTM so in both in original KTMs or in the copy ones like the NRG50
from Nitro Motors this is the way how you replace the clutch yourself at home
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in the next video