There's not a lot of info on this so I figured fuck it.. ima archive the procedure and my overall thoughts about it.
Why do you wanna put aftermarket Tomos springs in za50 stock clutches?
Great question, I mean the treats clutches exist and they rip dicks. We all know this. However, idk if you're a za50 nerd but there's hella cases of the treat clutches failing and grenading all of your precious za50 internals. Ouch.
I had both 1st / 2nd gear treat clutches. 4.5k springs in first and mild 2k springs in second. The 2nd gear felt a lot like a stock flipped clutch but man that 4.5k ripped hella hard. Like it woke the bike the fuck up. After maybe.. 50 miles I broke a clutch cable and said FUCK IT. IMA INSPECT THE TRANNY. well.. guess what? The stock chain links in the treat clutches already had a lot of play. An uncomfortable amount. I coulda grenaded my tranny. Scary!!! So I said FUCK IT, ima tune those stock clutches and reduce potential damage to my precious za.
Alright let's get started!!!!
First off, get that clutch out.
You'll notice the stock chain links aren't particularly serviceable. I opted to do what moped luau did. Ditch the stock chain links and replace with masterlinks.
Take a angle grinder to those links and take em all out. Be careful!! Don't damage that previous clutch.
Now that it's all apart we gotta decide what Tomos spring were gonna rip. I opted for the yellow springs. They're significantly stiffer / beefier than the stock 1st gear spring. The blue spring was a hair stiffer than stock but I opted for yellow in hopes of getting some serious changes in clutch stall. You'll also notice that aftermarket Tomos springs are significantly longer than puch springs. Weird huh? Well they work. I guess. *shrug*