question about fuel injection

[YFZ450Ridr]

ok i know when you add a pipe and filter to a bike with a carb, you are letting more air threw the engine and you rejet the carb for more fuel to equal it out again.

my question is, if you add a pipe and filter to a fuel injected bike such as the new raptor or an atk, do you have to do anything to the motor since you are letting alot more air threw?

[FoxMxRiders]

No because the injection system will automatically compasente the air/fuel mixture

[YFZ450Ridr]

ok thanks for clearing that up for me:)

[WKY400EX]

Yeah, it's just like a EFI motorcycle or automobile. When intake/exhaust mods are done, the engine will automatically compensate for the mods. BTW, can't wait to see what kind of HP numbers people can get from the new Raptor 700. :D

[FoxMxRiders]

yeah but when it broke,this is hard to fix and cost much more than a carb

[WKY400EX]

Absolutely. It's more complex than a carburetor, and more costly. I would assume that Yamaha has the EFI system all worked out, since they've been making fuel-injected bikes for years now. So hopefully there won't be any problems.

[bwamos]

You can also remap your EFI system for different situations.

You can have a Map for Dunes, one for Woods, and one for drags.

[Punk'd]

It seems easier, but like "FoxMxRiders" said if it breaks your screwed.

[400exrider707]

Originally posted by WKY400EX
Yeah, it's just like a EFI motorcycle or automobile. When intake/exhaust mods are done, the engine will automatically compensate for the mods. BTW, can't wait to see what kind of HP numbers people can get from the new Raptor 700. :D

It's only a 686:blah:

[WKY400EX]

Originally posted by 400exrider707
It's only a 686:blah: No need to get technical!:p It's only an additional 20cc's, but the EFI should help out power numbers. Not to mention the thing is wider now. About time!

[2004exrider]

do they make fuel injection kits for other brands, like the 400ex that would be cool.

[YFZ450Ridr]

Originally posted by bwamos
You can also remap your EFI system for different situations.

You can have a Map for Dunes, one for Woods, and one for drags.

now when you say remap, what are you doing with this. the air/fuel mixture or what? ive herd that before but cant recall what it meens.

[bwamos]

Air/Fuel mix, spark timing advance, rev limiter, etc across the power curve. (Combine your CDI with your carb.. and that's your EFI system, assuming they are using integrated.)

A programable one you just hook up to your PC/Laptop and download a new map.

[YFZ450Ridr]

Originally posted by bwamos
Air/Fuel mix, spark timing advance, rev limiter, etc across the power curve. (Combine your CDI with your carb.. and that's your EFI system, assuming they are using integrated.)

A programable one you just hook up to your PC/Laptop and download a new map.

alright sweet. and where in MO are you, im in st. louis county and ride at st joe sometimes.

[Bill Fuller]

Originally posted by 400exrider707
It's only a 686:blah: Yoa do realize ALL manufactures do this right.Ever heard of the 282ex Honda???Thats what I thought :rolleyes:

[C41Xracer]

fuel injection is great, i have it on my cannondale and love being able to change maps for diferent riding situations

[Robin Hood]

Originally posted by WKY400EX
Yeah, it's just like a EFI motorcycle or automobile. When intake/exhaust mods are done, the engine will automatically compensate for the mods. BTW, can't wait to see what kind of HP numbers people can get from the new Raptor 700. :D

Me too!:devil: