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Everything Dirt Bike
Make / Model Specific
Suzuki
RM125 motors interchangeable?
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<blockquote data-quote="PALMER84ONE" data-source="post: 217250" data-attributes="member: 6"><p>Big Dan has his own way to break in engines. I do run a thicker oil as per the YZ manual states to do for break in, but not as thick. It is only a small ratio off from standard mix. Manual staes to use a 15:1 ratio, and I do a 25:1 so it's not so lean. On a 2 stroke, the oil lubes, and the gas cools.</p><p>3 heat cycles total before letting her rip.</p><p>1st is on the stand and to warm up the engine, adjusting the carb to idle high, and tiny littl blips on the throttle 1/32-1/16 twist is all. Let the engine get to a warm temp for about 5-8 minutes.</p><p>2nd is the same only now you are giving it up to 1/4 twists, adjusting idle at temp, and litening to the idle for any strange noises.</p><p>3rd is riding it through all the gears using 0-1/2 throttle in the first 1/2 of minutes, and 0-3/4 in the last 1/2 minutes of riding. 10-15 minutes total if everything is shifting and sounding good.</p><p>Let the engine fully cool between cycles.</p><p>Remember to always warm a 2 stroke up before taking off and having a good hammer time. This will ensure you don't have a cold seize. </p><p>Also, unluss the bike is pre 1988, and/or has been sleeved with a steel cylinder, you need to get it replated if the cylinder has damage. Send or buy a piston from whomever you have do the work. </p><p>Good luck, good choice!</p></blockquote><p></p>
[QUOTE="PALMER84ONE, post: 217250, member: 6"] Big Dan has his own way to break in engines. I do run a thicker oil as per the YZ manual states to do for break in, but not as thick. It is only a small ratio off from standard mix. Manual staes to use a 15:1 ratio, and I do a 25:1 so it's not so lean. On a 2 stroke, the oil lubes, and the gas cools. 3 heat cycles total before letting her rip. 1st is on the stand and to warm up the engine, adjusting the carb to idle high, and tiny littl blips on the throttle 1/32-1/16 twist is all. Let the engine get to a warm temp for about 5-8 minutes. 2nd is the same only now you are giving it up to 1/4 twists, adjusting idle at temp, and litening to the idle for any strange noises. 3rd is riding it through all the gears using 0-1/2 throttle in the first 1/2 of minutes, and 0-3/4 in the last 1/2 minutes of riding. 10-15 minutes total if everything is shifting and sounding good. Let the engine fully cool between cycles. Remember to always warm a 2 stroke up before taking off and having a good hammer time. This will ensure you don't have a cold seize. Also, unluss the bike is pre 1988, and/or has been sleeved with a steel cylinder, you need to get it replated if the cylinder has damage. Send or buy a piston from whomever you have do the work. Good luck, good choice! [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Suzuki
RM125 motors interchangeable?
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