i just bought a 1986 350x im a big guy 375 lbs the thing flies even with me on it but i was thinking about changing the sprockett sizes from 13/40 to 12/42 how much difference will this make ?
i just bought a 1986 350x im a big guy 375 lbs the thing flies even with me on it but i was thinking about changing the sprockett sizes from 13/40 to 12/42 how much difference will this make ?
If you want to gear it down just try the front sprocket first and see what you think. They are cheaper and easyer to change IMO.
I like to try to run the smallest rear sprocket I can for ground clearence. So I would start with the front sprocket and fine tune if need be with a rear sprocket.
80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
2012.....Replaced the 350x motor for a 444cc YZ426
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When it come's to catalogue shopping on the 350X sprocket's ,your only gonna find a 40 tooth for the rear.Now as far as the front you have option's from a 12 to a 14 tooth only I believe.But in my travel's i've only found 40 on the rear.
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