Predator 234cc Engine

#2
You mean 224 right?
Same 70mm bore just has a 58mm crank in it. Also has a plastic cam gear. At $189 it’s a decent deal especially since the 58mm crank alone retails for around $100 if you can even get your hands on one. looks like it has an upgraded block casting as well. I’ll most likely be building one in the near future. Maybe not as nice as a 72mm bore tillotson block but pretty close
 

toomanytoys

Well-Known Member
#4
Worth ordering one of these before they sell out?

I want to build a predator for whatever reason. Need another base.

Edit:

Read a reddit post said clone flywheel fits, gx200 cam, 212 intake bolted up.

Ordered one. Screw it. I'll throw it on the shelf and let some other people figure it out.

It'll go on a rascal with the suspension forks I'm messing with. Just what I need another minibike.
 
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SAS289

Well-Known Member
#8
Someone on YouTube mentioned the "303" rod. Makes me think the piston isn't very far in the hole. And they are using a .040" head gasket.
 

delray

Well-Known Member
#9
here is some info coming right from ARC RACING.
ARC Racing
January 24 at 10:21 AM ·
A little break down and measurements of the new Predator 224cc engine. I am only going to highlight the performance parts that will work on this engine to help keep the confusion down.
Flywheel… this engine takes any of the current flywheels for the Honda/Clone engine. Such as the 6619, 6689 and 6602 models. The OEM starter cup engaged great with a 6619 on this engine.
Connecting Rod… it has the Honda/Clone crank journal of 1.180”, but if you are using the OEM 224cc piston you will need the ARC 6773 connecting rod because of the .716” wrist pin. If you plan on switching to a Hemi Flat Top with a .709” wrist pin you can use either of the ARC 6269, 6270 or 6271 connecting rods. Block and cam clearancing may be needed. Wiseco pistons at the 2.756” bore size will use an ARC 6234 drop in long rod, piston may be required to be cut to achieve desired deck height. The ARC 6268 long rod can not be used with this engine because of the added stroke.
Cam Shaft… it takes any of the current Honda/Clone cam shafts
Valves… this engine has 5.5mm valve stems and 27/25mm valve heads with OEM style clip on Clone retainers. This means the current shelf stock 5.5mm stainless valves and retainer kits can be used.
Valve Cover… it is a nice looking black Non Hemi style cover, but any valve cover from a Honda/Clone should fit.
Head… the head is a Clone style head with decent ports that can be worked well. It has a 22ishcc combustion chamber and Clone dowel pins that work with Hemi style head gaskets. However a 26lb or less spring is all the can be used with the current spring pocket design on the intake side. You will need to have the pockets cut wider and deeper to use 36lb or dual springs. Head also has OEM Clone style 1:1ish rocker arms
Piston… the piston is dished and has a .716” wrist pin. Good news is it takes the current Non Hemi Predator rings.
Block… the block looked like a standard Ducar style block at first. The piston was .006” in the hole at TDC, but this may vary from engine to engine. It takes any of the Honda/Clone style top plates, sidecover gaskets, and billet sidecovers such as the ARC 6057. However I did notice that the dowel pin on the top side of the block was much smaller than normal, and the bottom did not even have a dowel pin hole. The top one can be still drilled out to proper size, but sorry on the bottom.
All other OEM add on’s like coil, header, carb, carb adapter, chain guard/heat shield, spark plug, lifters and clutch from a Honda/Clone, Ducar, Tillotson or Hemi should work just fine.
If you have any other questions regarding the new 224cc Predator engine, you can call the tech line at 800-521-3560 or email us at customerservice@arcracing.com
 

delray

Well-Known Member
#11
something also for you minibikes guys. i notes right away the recoil was much larger. meaning it sticks outs more. For some guys that might be a small problem for leg/foot room. good news you should be able to swap it out for a honda style recoil with the short starter cup. just remember if you are really looking into building a strong motor and don't have the knowledge or equipment. you might want to look into a tilly 236cc kit from EC carbs or someone else that sells a good kit or otherwise you could be dumping a lot money into this motor to make it work.
 
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