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what is jetting?

Old Jan 17, 2005 | 03:57 AM
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Default what is jetting?

can someone please explain to me what is jetting on quad what does it do? b/c my blaster takes a logn time to start i need to know how to fix this problem.
 
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Old Jan 17, 2005 | 04:07 AM
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Default what is jetting?

Go and read this: Jetting

And here: More jetting explained

And last but not least, An EXCELLENT explanation here: Carburator theory, and jetting explained
 
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Old Jan 17, 2005 | 04:11 AM
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Default what is jetting?

Here are a couple that will help with adjusting float height if you ever need to. Setting the float height


A little more commentary at the end
 
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Old Jan 17, 2005 | 04:16 AM
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Default what is jetting?

i apreciate ur info but... i have no clue what so ever what all this means idk 1 thiing about this i just need directiosn on how to fix this or something..lolll thank you i just got my quad this summer also and i just found out taht this is not normal

~~~~~~~~~~~~~
03 yamaha blaster - some mods
 
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Old Jan 17, 2005 | 04:17 AM
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Default what is jetting?

a jet is what meters how much fuel enters your engine to be mixed with air and combust

jets come in different sizes to allow more/less fuel,,,,depending on how much air volume you are dealing with

people who put high flow intakes and filters on their bikes have to also install a larger main jet to compensate for the increase in air flow

If they didn't,,,the engine would burn 'lean' (too much air,,,not enough fuel) and run too hot

In the winter,,,,the cold air is denser than in the summer months,,,,so your engine is probably running lean,,,and making for a harder start

You probably just need to turn your air/fuel screw on the bottom of your carb out about 1/4 turn,,,,to richen (add more fuel) to your idle circuit,,,,which will help with cold starting.
 
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Old Jan 17, 2005 | 04:31 AM
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Default what is jetting?

Bing, that is a pretty good summary.

Sash, did this not explain things to you? Carburator theory.
 
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Old Jan 17, 2005 | 04:34 AM
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Default what is jetting?

Sash, more than likely, you are just lean (meaning you are not getting enough fuel to the carburator when it is cold).

This is assuming your air filter is clean, and that your sparkplug is fresh.

To richen up the pilot circuit, you will either have to screw IN the air screw, or go up a size on the pilot jet.

The Carburator thread should be able to explain these different circuits, and what they do fairly well.
 
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Old Jan 17, 2005 | 04:46 AM
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Default what is jetting?

nice pics 2fun[img]i/expressions/face-icon-small-happy.gif[/img]
 
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Old Jan 17, 2005 | 08:33 AM
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Default what is jetting?

Originally posted by: Bing
nice pics 2fun[img]i/expressions/face-icon-small-happy.gif[/img]
Thanks Bing!
You too![img]i/expressions/face-icon-small-cool.gif[/img]
 
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Old Jan 17, 2005 | 01:59 PM
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Default what is jetting?

i cannot understand teh carberator theory...i just got my quad this summer but i have very litttle knowledge of these things
 
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