Ive never used one from aliexpress before but you can do the adjust ment first as it doenst take that much time and if it doesnt work I would test the compression

I think you can ffind the same thing on amazon;

https://www.amazon.com/AZUNO-Compression-Automotive%EF%BC%88Update%EF%BC%89-Digital-Cylinder/dp/B098LNQXXC/ref=sr_1_38?crid=L19728CX0UBB&keywords=compression+test+kit+motorcycle&qid=1683434883&sprefix=compression+test+kit+motorcycle%2Caps%2C69&sr=8-38

for a few dollars more but get it shipped faster