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When to use the different map plugs

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I have a 11 rmz450 and I LOVE it! I am interested to see when y'all have used the other maps, what conditions? what did you notice? Im going riding in hot weather on thursday so Im thinking of using the grey rich plug. Hit me with some knowledge :thumbsup:

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i also have the 11 RMZ450 and have tried both plugs but not extensively, i found the leaner one works best for me as it gives the motor a bit more punch where the rich one seemed to tame her down a bit. Hope this helps

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The rich plug is supposed to be used in high heat/ high humidity settings and the lean plug is to be used for colder/less humid days.

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I liked the stock map performance then I installed a FMF 4.1 RCT slip on with SA and the bike got a little slower and softer in response overall. I put in the lean plug and the bike livened back up and feels very good now. It started everytime on the 2nd kick with the stock map but with the lean map it starts on the 2nd kick but then stalls like it is lean...does this usually 2 times and then warms up perfectly. Have not tried the rich plug yet.

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The slip-on should work properly with the stock plug, the stock plug is too rich for the stock exhaust, putting a freeer flowing exhaust on the bike will make the afr closer to what it should be. Running the lean plug is going to make your bike far too lean. Id try the rich plug and the stock plug if I were you

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Every motocross mag I read all say that an exhaust will do magic to the rmz, so I think you guys are right about it being too rich, open up the exhaust a little to lean it out and you got your self a perfect set up.... on the market for an exhaust now thanks a lot jerks hahahaha :smirk:

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THi I'm kind new to the whole forum thing. But I noticed this was about rmz. I have a 09 rmz and was wondering if they made a cobra sparky type arrestor for my bike. I know about the moto billet but I'm looking for a cheaper route if possible. Thanks

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THi I'm kind new to the whole forum thing. But I noticed this was about rmz. I have a 09 rmz and was wondering if they made a cobra sparky type arrestor for my bike. I know about the moto billet but I'm looking for a cheaper route if possible. Thanks

Sorry, but I think that the PMB is going to be about the cheapest route.

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Thanks. I couldn't find anything on any other type than the promoto.

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Yoshi Full system best fit and finish and grey plug and pro 110 Rengade race fuel straight pipe has a nice greyish color inside pipe.

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I have a 11 rmz450 and I LOVE it! I am interested to see when y'all have used the other maps, what conditions? what did you notice? Im going riding in hot weather on thursday so Im thinking of using the grey rich plug. Hit me with some knowledge :smirk:

I believe you are backwards here. Warmer air and higher humidity = less dense air so you're bike will tend to run rich. The white (lean) jumper is the one you want. The same is true for higher elevations. Stock bikes are usually tuned for sea level, so if you live at a higher elevation like I do (3500 ft) the air is again less dense so you can typically see an improvement through leaning out your bike. My '11 is bone stock and I thought the power was good but the delivery was a littly 'fluffy' and I switched to the lean jumper and it definitely made the response more crisp with a slight increase in overall power. My advice would be to experiment with all the maps, see what you like and run it. Short of an air fuel meter or a dyno, how the bike runs and looking at the spark plug are the best ways to tell what fuel setting is the best. Hope this helps.

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Can someone help me find the plugs?

I would like to test the plugs that you are talking, but I don't know were are they.

Thanks!

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Can someone help me find the plugs?

I would like to test the plugs that you are talking, but I don't know were are they.

Thanks!

If you have a 2011 there are two, one white and one grey, they are part of your spares kit and plug in behind the front number board. :bonk:

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The rich plug is supposed to be used in high heat/ high humidity settings and the lean plug is to be used for colder/less humid days.

I believe you have that backwards. As a general rule, in cold dry air you need to richen it up. In hot humid air, you have more margin to lean it out.

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hot/humid=lean

cold/dry=rich

Do you mean that in hot humid air you need to lean the bike out or do you mean that in hot humid air the bike runs lean?

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Thaks for the reply My Friend!

Mine is a 2009, maybe I'm missing the plug-in?

I have some plugs behind the front number plate but there is none that can be connected. You can provide any pictures?

Thanks!!!

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Thaks for the reply My Friend!

Mine is a 2009, maybe I'm missing the plug-in?

I have some plugs behind the front number plate but there is none that can be connected. You can provide any pictures?

Thanks!!!

I believe the plugs didn't come with the bike until 2011.

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