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About demon

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  1. hi all, my first post here, but read a lot before now... i have an 06 yz450 and ive read all about how the stock jetting is too lean on here etc... my question is how much effect does temp and humidity effect the jetting and about where should it be for where i live which is in far northern australia. see the ambient temps are usually around 32-34 celcius (im guessing thats about 90F???) and about 80% humidity (yes its very tropical). so im thinking the lean stock jetting should be about right? going up to the 48 pilot and 170 main is recommended here by burned, but for what temps and humidity at sea level? it seems to run pretty well except for the backfiring during deceleration... but thats not to say it could run better!? any advice/education?