Throttle body injection for Honda gx 50

Wall e

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I want to convert a lawn mover Honda gx 50 engine frm a carburetted to TBI. Pls help. Can i use a piezo sensor to measure the cylinder pressure?
 
I want to convert a lawn mover Honda gx 50 engine frm a carburetted to TBI. Pls help. Can i use a piezo sensor to measure the cylinder pressure?
No one here has done that conversion.

Why do you want to do that conversion?
Was your Honda GX 50 really on a lawnmower and is it a horizontal shaft model?
 
Thanks for replying. I'm working on a project to build a vehicle using the GX 50 engine. Yes it was on a lawnmower and it is a horizontal shaft model. Is the GX 50 and the GXH 50 the same?
 
Thanks for replying. I'm working on a project to build a vehicle using the GX 50 engine. Yes it was on a lawnmower and it is a horizontal shaft model. Is the GX 50 and the GXH 50 the same?
Yes, they are the same.
There is a vertical model too but it's pretty rare.

I have 2 Honda GXH 50cc and 1 Huasheng 50cc clone.

What kind of vehicle are you building? 2 wheel or more?
 
Now this is an seriously interesting thread: anyone who's making an electronic fuel injection system (be it 4-stroke or 2-stroke) gets my undivided attention and i want to see the results and the build process and what type of fuel injection method is used.

Electronic Fuel Injection - bring it on!
 
The smallest commercially produced fuel injected engine is the Subaru Robin 7 HP "EX21 Fuel Injection".

I can't find it now, but I remember reading a press release on this engine when it was in development. It was rather complex, requiring an electrical power source, a micro processor, numerous sensors, a pump, a throttle body injector, etc, etc.

Regardless of the number of cylinders, for an electronic fuel injection system, you still have to have "one of each" of all the basic components.

I think that to build and market a commercially viable (i.e. "cheap enough") small single cylinder fuel injected engine is quite an achievement for Subaru Robin. As of yet, I don't know of any other small engine manufacturers who have followed them into this market.
 
Honda 50cc metros are FI.

Darwin,

Thanks for pointing that out - I was unaware of the Honda Metro FI system.

The smallest "stand alone" engine I know of is the 7 HP Subaru - perhaps there are others now?

I would think that examining the Honda scooter FI system would be a good place to begin if I wanted to FI a Honda GXH 50. I can't imagine that the components from the scooter would be cheap enough to purchase outright to convert a GXH 50, but seeing how they went about it would certainly seem worthwhile.
 
I'd like to see the honda 50 FI setup myself, bet its a simple one considering the metro 50s cost. It is the low end of the honda scooter lineup.
 
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