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How to fine-tune your jetting: Difference between revisions

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The best solution is taking the bike to a professional with a Dyno and an EGA (electronic gas analyzer, sometimes called a "Sniffer" or "4 gas analyzer") to see what kind of exhaust the bike is putting out at the different RPMs while under appropriate load. The next best solution is to dive head and heels into the massive amount of jetting information that's been published. There are dozens of different books dedicated to the subject. You'll have to read, then apply the information learned so you can feel what lean and rich are like. There's absolutely no way to impart that knowledge in the space of the FAQ.
The best solution is taking the bike to a professional with a Dyno and an EGA (electronic gas analyzer, sometimes called a "Sniffer" or "4 gas analyzer") to see what kind of exhaust the bike is putting out at the different RPMs while under appropriate load. The next best solution is to dive head and heels into the massive amount of jetting information that's been published. There are dozens of different books dedicated to the subject. You'll have to read, then apply the information learned so you can feel what lean and rich are like. There's absolutely no way to impart that knowledge in the space of the FAQ.
You may want to [[Battery box mod for easier carb removal|modify the battery box]] if you are going to put an aftermarket exhaust on your bike or otherwise plan on rejetting. Why? Because the physical carb adjustment is simple. It's the fine tuning process that can be time consuming and tedious. It will require you to pull the carbs AT LEAST TWICE (if you are extremely lucky), but probably more like three or four times to get everything right.


==Carb adjustment==
==Carb adjustment==
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====Step 5: [[How do I remove the carbs to work on them?|Attach carbs to bike]]====
====Step 5: [[How do I remove the carbs to work on them?|Attach carbs to bike]]====
==Conclusions==
It is recommended, but not necessary, that you buy [http://www.knfilters.com/search/product.aspx?Prod=RC-1822 K&N] or [http://www.unifilter.com/whoisuni.html UNI] pod filters if you are going to put an aftermarket exhaust on your bike. They make things so much easier. Do this BEFORE buying an exhaust. New filters and exhaust are not likely to net you more than a horsepower or two on such a small engine, but pod filters make carb maintenance easier.
Why is this so important? Because the physical carb adjustment is simple. It's the fine tuning process that can be time consuming and tedious, and will require you to pull the carbs AT LEAST TWICE (if you are extremely lucky), but probably more like three or four times to get everything right.
Pod filters do increase intake noise (but then, if you're running a Muzzy that's hardly a concern, is it?)


==Carb Tuning==  
==Carb Tuning==  
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Symptoms:  
Symptoms:  


LEAN = Blipping throttle causes the RPMs to rise, hang for a moment, then drop back down.  
LEAN = Blipping throttle causes the rpm to rise, hang for a moment, then drop back down.  


RICH = Blipping throttle causes the RPMs to rise, drop down below the idle speed setting, and the rise back up.  
RICH = Blipping throttle causes the rpm to rise, drop down below the idle speed setting, and the rise back up.


==Conclusions==
==Conclusions==
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