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Removing choke & snorkel on a 400ex

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Old 09-09-2003, 04:45 PM
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Default Removing choke & snorkel on a 400ex

I read in some tech articles that if you remove the snorkel & or the choke it will get a little bit more power because it will breathe better. Has anybody else heard, or have any experiance with this?
Thanks
 
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Old 09-10-2003, 10:31 PM
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Default Removing choke & snorkel on a 400ex

Is your engine built? I needed my choke to start my stock engine.

The motor is now bored and stroked, and will start without the choke but I haven't removed it.

You could get more air removing the snorkle, but you could do the same taking the lid off. If it is not cammed you are probably getting enough air though.
 
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Old 09-10-2003, 11:06 PM
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Default Removing choke & snorkel on a 400ex

Originally posted by: 400EXJumper
I read in some tech articles that if you remove the snorkel & or the choke it will get a little bit more power because it will breathe better. Has anybody else heard, or have any experiance with this?Thanks
yes it helps from what I hear. if you need details PM me.
 
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Old 09-11-2003, 11:36 AM
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Default Removing choke & snorkel on a 400ex

my engine isn't built yet, but I have never used the choke to start it. I also cut a huge hole in the air box lid and covered it with mesh. It looks good and from doing that mod alone and jetting it I saw alot more power. So I don't even know if I will notice any more by removing the snorkel and the choke. what do you think? sickmojave, thanks but I already have step by step instructions with pics that I got off of another site.
Thanks for the info!
 
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Old 09-11-2003, 11:58 AM
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Default Removing choke & snorkel on a 400ex

removing the snorkel will not do a thing if your air box is already open. but taking out the choke may still help. what pipe are you running and what main jet are you using. the reason I ask is because I am doing the same thing to my ex.
 
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Old 09-11-2003, 12:00 PM
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Default Removing choke & snorkel on a 400ex

oh and if you take the choke out you will need to go to a #40 or #42 pilot jet [img]i/expressions/face-icon-small-wink.gif[/img]
 
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Old 09-11-2003, 04:57 PM
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Default Removing choke & snorkel on a 400ex

I'm just running the stock pipe with a 148 main, the stock main was a 142. I put up a picture of the air box lid in my page. I don't have that same exact one, I couldn't see paying all that money for one when I could just take a hour and make one just like it for free. I'll try to get a picture of my lid up soon.
James
 
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Old 09-11-2003, 06:16 PM
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Default Removing choke & snorkel on a 400ex

Holy Cow my name is James too. thanks for the help with the jet sizes.mine is stock but it seems like it runs alittle lean. I'm going to take the choke out first( tomorrow I hope) and I just orderd an advance timing key today. good luck with yours and I will check out your pics. [img]i/expressions/face-icon-small-wink.gif[/img] James
 
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Old 09-11-2003, 06:36 PM
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Default Removing choke & snorkel on a 400ex

looks like i'm retarded! i'm running a stock pipe with a 155 main, and the stock main was a 148. i don't know what the hell was thinking when i said that. sorry about the mix up.
 
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