Two Stroke Motocross
Two Stroke Motocross Forum => Technical => Topic started by: thorns on March 31, 2013, 09:14:15 AM
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Could anyone reccomend some jetting specs for my bike?
Its standard apart from FMF rear muffler, and v force moto tassinari reeds in it.
I have no idea what is in there at the moment, but keen to have a look.
Hasnt been fouling plugs regulary, but they are coming out pretty black.
On this chart here, they would be closest to the dry fouling picture
http://www.alfabb.com/bb/forums/attachments/anything-about-alfa-romeos-alfabb-com/9852d1100019475-spark-plug-color-chart-spkplg_colorchart1.jpg
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Should also add I am running NGK BR8EG, or BR8ES when I cant find a EG.
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are you in a hot climate or cold? Sand or hard pack?
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Will be running in temps from 10-20 degrees celcius, and both sand and hard pack dirt.
ALso, running near enough sea level 95% of time.
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damn that is pretty cold.. I am at sea level here and ride in 20-40deg temps. yep, it is the desert here.
for the 20 deg I run a 168 main, with a necH needle in the 3rd position, stock pilot. the bikes both have vforce and PC pipe and silencer. In the hot summer i usually drop the main down to a 165. for your 10 deg weather you may need to richen the main to a 170 or 172. the bikes both have a flywheel weight which helps with hook up on the hard pack and overrev... the flywheel weight is the lightest available for the RM from steahly... 6 or 8 oz i think. I hope this helps
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Thanks for that. Yeah we are just about to enter winter (sigh), otherwise summer is 20-30 degrees.
Are needles marked on them what they are? I have no idea what the current jetting is, so be interested to get my hands dirty and have a look.
Bike is going to be out of action for a couple of weeks now anyway as I need to do fork seals after easter weekend riding.
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no prob for that... yes, the needles are marked down the side. Do you have a manual for the bike? If not it would be good if you could get your hands on one. There is a lot of good info there,,,, Also MXA and Dirk Bike magazine have some good articles on the 08 Suzukis.
heading into summer here so it is already in the mid-30s, soon it will be in the mid-40s....