- #Predator 212 iguard install#
- #Predator 212 iguard mod#
- #Predator 212 iguard upgrade#
- #Predator 212 iguard full#
A Chinese made Mikuni-style carb can be found for between $25-$30.
#Predator 212 iguard install#
You will likely need an adapter to install one of these on your engine. They also allow for much better and finer adjustability for engine tuning. These use a slide mechanism to deliver the fuel instead of the butterfly valve in the stock carb.
#Predator 212 iguard upgrade#
A popular upgrade is the 22 mm genuine Mikuni or Mikuni-style slide carburetor.
#Predator 212 iguard full#
With the stock carburetor you will run into problems adjusting the air/fuel mixture to take full advantage of any further upgrades. You might consider upgrading the stock carburetor to get better fuel mixture and delivery into the engine. Stage "1 1/2" That's what I call it anyway.
This is called flywheel detonation and even though it is rare, it can cause severe injury. This is probably all for the best since the stock cast iron flywheels can fail catastrophically above that speed. Momentary valve float is not usually a problem, but running consistently at that speed can cause internal damage to the engine in the form of bent push rods or valve stems. With the stock valve springs, the valves will start to float open around that speed and performance will degrade significantly. This modification will usually get your engine to run up to about 5000-5500 RPM and about 9HP. The exhaust can be with or without a muffler. The air box and exhaust are replaced with a more free flowing pod-style air filter and an exhaust header pipe. Video by RBG Ī typical Stage 1 kit will cost around $50 and modifications usually include parts to replace the stock air filter, and exhaust. It doesn't cost anything but a couple of bolts or set screws to plug the holes.
#Predator 212 iguard mod#
A cheap and easy "stage 0" mod would be to just remove the governor. This is mainly a design for generators as 3600 RPM is the same as 60Hz, the alternating frequency of AC power in North America. Most of the engines are mechanically governed to a max 3600RPM out of the box. CarsAndCameras built an engine at each stage and tested it on the same kart and the same track/course for some real-world numbers. The differences in perfomance numbers are due to variations in engine internals and manufacturing tolerances.Ĭheck out this video for a good rundown on how each stage compares to the others. The different stages of modification apply to most Honda clone engines and they are basically the same on the Honda GX390 (big block) clones like the Predator 420 or Duromax 440. Since the top speed of your kart, mini bike, or whatever, is directly related to the top speed of your engine, getting more RPMs will get you faster. These modification stages are cumulative and serve mainly to get more torque, HP and a higher max RPM. The main differences between engines of this type are in the bore and stroke and the timing angles of the flywheel.
They are overhead valve single-cylinder 4-stroke engines with displacements around 200cc and manufactured by a few factories in China. These engines are not all identical so the interchangeability of parts will be up to your own research, but generally these motors are VERY similar in design and function. I'm not affiliated with any of the youtubers linked below, I just found their work helpful. I'll include links to youtube build videos. This is just my own experience and research, if you ruin your engine injure yourself with this info, I am not responsible. When I first got into this a couple of years ago I didn't see this info listed in one place and I though you guys might find it useful. Here is a guide to what is generally considered the different stages of modification for the Predator 212 and other Honda GX190-style clones.
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