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General => General Discussion => Topic started by: Scootsuper9 on April 04, 2026, 03:11:36 PM

Title: Aliexpress
Post by: Scootsuper9 on April 04, 2026, 03:11:36 PM
Might get flamed for this, but i see aliexpress has a 50cc replacement top end for 30$ (kymco super 9) picked up a blown up s9, and theres a shortage of stock displacement options - looking to keep 50cc for dependability, no tuning etc.

Has anyone ran one of these kits? I assume Naraku and other similar competitors (maybe oem even) come from the same factory lol

Alternative is to rehone and try and source rings. I would assume given i file the rings down to spec and properly break in, etc. it should be reliable? Worst case is 30$ down the drain
Title: Re: Aliexpress
Post by: randyo on April 04, 2026, 07:46:29 PM
for $30, you can be the guniea pig
Title: Re: Aliexpress
Post by: JJJoseph on April 19, 2026, 08:56:50 AM
Might get flamed for this, but i see aliexpress has a 50cc replacement top end for 30$ (kymco super 9) picked up a blown up s9, and theres a shortage of stock displacement options - looking to keep 50cc for dependability, no tuning etc.

Has anyone ran one of these kits? I assume Naraku and other similar competitors (maybe oem even) come from the same factory lol

If it's a 2-stroke, this is normal. You can often get the cylinder, piston,rings, wrist-pin, clips,gaskets in one go.  It's normal maintenance on 2 strokes. When the compression gets down to 50psi, they won't start and you have to change out the entire top-end. Shouldn't take more than an hour.