aspg4
Silver Member
Any advantage of EFI vs Carburetor on zero turn mowers...
EFI vs Carburetor
- Thread starter aspg4
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RandyT
Elite Member
Better fuel usage, more responsive throttle. Down side is if something goes wrong will need dealer support to diagnose for the most part.
dlctcg
Platinum Member
I think you are correct.... even though I prefer carbs on smaller equipment.... I can still clean & tweak a carb to make something run well without my dealer involvement....
RandyT
Elite Member
Not actually EFI but there are chainsaws with electronic carbs that also require it to be connected to a computer for diagnostics and to flash replacement parts into memory.
mike48130
Platinum Member
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- JD 4410, 4210 Ford 1700, 550, Bobcat 843
I have EFI on my Deere X485 and it starts and runs awesome all the time. I will say, the downside is the cost of parts. I have not had to replace any parts for the EFI "knock knock", but looked at prices. Ouch.
Gary Fowler
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EFI doesn't get effected with crude build up like carbs do. They start quickly even after prolonged storage with fuel in the system. I think they also get better fuel economy.
Not a zero turn, but a just bought a 2020 KTM motorcycle (dirt bike ) ...it is EFI....I was certainly hesitant. ..it's also oil injected... another new feature. ..so far it's been great. It has 2 separate and different maps in the computer for different riding situations..can't do that with a carb.
Katahdin
Platinum Member
My carb on my Toro z420 was trouble free for 13 years, then it started leaking fuel into the cylinder after shutdown, it's being replaced this spring.
I would expect EFI to be more reliable with current fuels and more fuel efficient.
I would expect EFI to be more reliable with current fuels and more fuel efficient.
super55
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EFi I have seen on most small engines is very similar to the old throttle body EFI on cars/trucks in the 90's. Essentially you have an electric lower pressure electric fuel pump and some type of injector spraying it into the throat of what essentially is a carburetor.
Typically this give better throttle response and eliminate lag or dead spots on that some carbs will give but with a mower you are typically running at a constant throttle position. For a mower I would see EFI as a benefit of they generally have quick start ups and not having to worry about floats sticking.
Is EFI worth it on a mower. I'm not sure the costs is worth it. You are running at constant speed. Fuel efficiency I would think would be marginal between the two. If it was older carbs I would say go with the carb over EFI but most mowers now are set up so you can't adjust the fuel/air mixture on idle or main anymore on the carbs.
Typically this give better throttle response and eliminate lag or dead spots on that some carbs will give but with a mower you are typically running at a constant throttle position. For a mower I would see EFI as a benefit of they generally have quick start ups and not having to worry about floats sticking.
Is EFI worth it on a mower. I'm not sure the costs is worth it. You are running at constant speed. Fuel efficiency I would think would be marginal between the two. If it was older carbs I would say go with the carb over EFI but most mowers now are set up so you can't adjust the fuel/air mixture on idle or main anymore on the carbs.
