MOPED ARMY

Got a pic of the bike and the clutch side of the engine?

Unfortunatly for you no Peugeot clutch of any kind will work on what you have sticking out of that motor. That shaft looks very large and very short. It almost appears as though it has some of it cut off.

Here is a 103 shaft. The 102 is the same but shorter.

Head in another direction my friend. Wish I knew more about Heros now. (edited)

You can do anything you hold dear to your heart with the use of a welder. Maybe Jbot will chime in.

Yes If your just going to cobble/weld something on there so you can ride the bike I suggest that you measure that shaft stub and weld a go cart clutch on it. Then cover the chain sprocket of the go cart clutch with a welded on automotive pulley.

I take it your doing this so you can have your kid carving a dirt path around the circumference of your house while you sit on the porch/couch with the extension corded living room flat screen perched on the flower planter, watching football.

This will be a death sentence for this motor once you weld on the crank.

Not a bad idea.

I'm just saying.

Honestly the whole idea you have is not a good idea. The main reason it is not a good idea is because even if you were able to get the clutch welded to the shaft good enough to stay one the engine still probably won't run. I say this because there is a crankshaft seal on that side of the engine that will melt. Once that melts the crank case won't bbe sealed so the engine won't run. Well now your clutch is welded on so you can't remove it to replace the seal. NOW you are screwed........ Take a pic of the whole bike and post it so I can see if there is another way to possibly help....

You don't need any one to validate your public image on this site. You asked:

Could I just weld one on?

I replied : Yes If your just going to cobble/weld something on there so you can ride the bike I suggest that you measure that shaft stub and weld a go cart clutch on it.

Had I known this was going to be your mode of supplementing your livelihood I would have backed off : Head in another direction my friend. Wish I knew more about Heros now.

Do you even have the means to do the welding?

Take some close up photos of the exposed shaft. From your picture it looks like it’s cut off but maybe there’s some weird keyway that we’re not seeing.

http://homealonemopeds.blogspot.com/2013/05/getting-to-know-mopeds-no-one-likes.html?m=1

From this blog it looks like the hero majestic used Batavus clutch parts but maybe some other clutch too.

If the shaft is indeed cut you might want to start looking for a new engine. welding on a shaft or a clutch sounds pretty advanced and you’re going to need it to be perfectly true or the whole thing could just self destruct. Putting a different engine on is probably the best bet in my opinion. You might need to create new brackets but I think it’s a much safer option than trying to weld something onto the crank.

I looked at the shaft more and it's more than likely cut like how you were saying. But as you'll see in my images it's weird because it looks very straight, I feel that if someone had cut it would have been more sloppy. What do you think?

There is definitely something wrong with your existing crank on that motor. There is typically a nut of some sort that holds the clutch on, and I see absolutely no threads on the remaining stub of crank left. I'd say that crank is roached.

I wouldn’t buy that 102 engine if I were you. I don’t believe the hero engine is a Peugeot clone. The 102 engine mounts differently and hangs at a different angle than the hero engine.

You sound like you are willing to do some fab work and welding to get the bike running which is good but if you’re going to make custom mounting and modifications you should get a better engine than that 102 that’s missing the top end and ignition. The 103 is a much better choice