79cc predator valves

#1
Does anyone know or has anyone ever replace/upgraded the valve springs in a predator 79cc engine. Also what about the valves, what size valves are in this engine and can you get heavier valve springs , retainers and SS valves for this engine. Looking to try to do some mods. on one of these engines so i can keep the rpm's up. Don't want to float valves at a high rpm. Surely someone has tried to build one of these. New project.
 

CarPlayLB

Well-Known Member
#2
Nope. No one will talk about upgrading a 79cc engine as there is not the appropriate billet parts to make them safe. Stephen Simmons may have some special parts for these, so perhaps he can help you. EVERYONE else on OldMiniBikes won't touch these because of the lack of aftermarket support and especially the lack of CC's! ...unless of course you're building an underpowered Amish wagon!
Personally I don't see making an investment into something that will never be what you need. Why invest in that motor when for $99 you can get 212cc's of power and not do a thing to it.
....and then we will har that this is for a small child and you're afraid to put that big of a motor on it. If that's the case, buy a 3HP Briggs off an old edger. Should be into one at $40 or less
 
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