Zongshen ZS166FMM running in method and oil type

Frankenstein200 · 05-14-2024, 05:00 AM

I have a new 250cc ZS166FMM motor I bought it from a guy that got rid of his china bike and parts business he told me it's only been put in a bike to test if it was working so I think I need to run it in but i dont know how do I just go easy on it for a while or is it more complicated, I don't have a manual but is full synthetic 10W-40 or 15W-40 car oil ok to use or should I use mineral oil, it does not have a sight glass but it has a dipstick. I've looked for pictures of my engine with red letters of "BSE" on both sides but I can't find any, were there many CDI versions like mine

XLsior · 05-14-2024, 06:51 AM

You need to to use a wetclutch compliant engine oil. normal auto car oil normally is not motorcycle safe.

Diesel engine oil mostly is...

otherwise its best to purchase a motorcycle specific oil.

someone else will probably chime in regarding is a full synthetic safe for break in to me it seems overkill.

I'd just go mineral oil 10-40 and stay of WOT rev limit for awhile then change the oil after a few full tanks of gas riding 'normally'

05-14-2024, 05:00 AM	#1
Frankenstein200 Join Date: Dec 2023 Posts: 2	Zongshen ZS166FMM running in method and oil type I have a new 250cc ZS166FMM motor I bought it from a guy that got rid of his china bike and parts business he told me it's only been put in a bike to test if it was working so I think I need to run it in but i dont know how do I just go easy on it for a while or is it more complicated, I don't have a manual but is full synthetic 10W-40 or 15W-40 car oil ok to use or should I use mineral oil, it does not have a sight glass but it has a dipstick. I've looked for pictures of my engine with red letters of "BSE" on both sides but I can't find any, were there many CDI versions like mine Attached Thumbnails
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05-14-2024, 06:51 AM	#2
XLsior Join Date: Aug 2020 Location: Australia Posts: 1,296	You need to to use a wetclutch compliant engine oil. normal auto car oil normally is not motorcycle safe. Diesel engine oil mostly is... otherwise its best to purchase a motorcycle specific oil. someone else will probably chime in regarding is a full synthetic safe for break in to me it seems overkill. I'd just go mineral oil 10-40 and stay of WOT rev limit for awhile then change the oil after a few full tanks of gas riding 'normally'
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