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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
ask a stupid question. port and ignition timing?
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[QUOTE="bclapham, post: 702967, member: 25565"] two questions- yes the rm, right now it is setup with stock port timing and stock pip and reeds, ~1.3mm squish. i am running the advance, around 2mm. i still feel i need a bit more bottom so i am going from a 0.5mm gasket to the cometic hi comp one which is 12 thous thick (which is 0.3048mm's by my calculation), so i will be dropping the cylinder ~0.2mms and this should bring my squish back to just a shade over 1.0mm :) should i back the timing off as well- i am just running 50/50 C12 pump right now, i think i will be OK, i might just run it like that and send Rich a plug, since i still cant figure out if the ignition is too advanced from looking at the electrode. and once ive tried this, how will a hi oxy fuel like U4 work out? ping city? thanks steve!:thumb: [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
ask a stupid question. port and ignition timing?
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