KX Riders
Maintenance & Technical => KX500 Original => Topic started by: SLEEZ on December 04, 2003, 04:11:32 AM
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I was wondering the best way to break in the 500. On my 250, I would do a 5 min warm up and complete cool down. Another warm up with light ride(no wide open rips). Another light ride and that would be it. Never had any problems. The shop I bought the 500 from recommended light riding nothing over 3/4 throttle for two tanks of gas.
I know not to run a synthetic pre mix during break in, I have always used Yamalube during break in(but is a semi syn.) What pre mix are you guys using during break in?
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Yes, What IS the best/proper way to beat in a 500? All the manual says is to "Avoid full throttle starts and rapid acceleration". Any one with any info?
Lee W
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20 min ride, cool til the cylinder feels cool, 20 min ride, cool again, run it easy for 2 more gallons, then punch it...!! Easy throttle, not too low, not too high during break in. Dont short shift, and dont stay at one RPM very log - up and down the RPM range smooth and easy....Dont be timid, just dont make it pull too hard or too high...
I use Golden Spectro at 50:1 - never had a problem in 20 years so I'm afraid to switch...
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Question!...
Why should you not use fully synthetic pre-mix when breaking in a new motor?? I got a '04 that hasn't been broken in yet and I've already bought some Royal Purple TCW 3 pre mix for it.
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^ not enough friction to break in the rings properly.
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Interresting point! I always break in my 2-stroke engines using the same synthetic Belray I normally use with no problems.....however, I just broke in a new motor in my truck and specifically used non-synthetic oil so the rings would seat. I never considered this for a 2-stroke. I wonder what is best?? Cam.
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I just gave it some thought. I think the difference might be the amount of fuel wash on the cylinder walls (more prevents glazing during breakin). A 2-stroke ought to have lots. Cam.
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So, what you're all saying is to not use synthetic mix but, rather use the good ol' cheap stuff for the first couple rides. I really don't want to screw my new motor!!!
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I would use regular oil for break-in. That is the industry standard. :)
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ummm.....something is screwed up I didnt make that post[ quote]
So, what you're all saying is to not use synthetic mix but, rather use the good ol' cheap stuff for the first couple rides. I really don't want to screw my new motor!!!
[/quote]
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Since I've ever had a two stroke, I've broken them in with synthetic. I've never had a seziure so far, except fort a rod bearing falling apart after six years of service. I broke my K5 in with Klotz SuperTech without problems. Maybe luck, I've never heard of not using synthetic, as I've used it for years. News to me. :-)
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I have to agree with Gowen. I have broken in bikes with regular 32:1 mineral oil and with my usual Belray 60:1 synthetic, and in both cases broken them down later. I'll stick with the synthetic. With mineral oil, I recall the occasional mild seizure on a high spot; tear it down to poilish it up. Never happens with synthetic. Cam.
Gabe, how are the bones healing?
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Yup, used synthetic for years with nary a problem...
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I have to agree with Gowen. I have broken in bikes with regular 32:1 mineral oil and with my usual Belray 60:1 synthetic, and in both cases broken them down later. I'll stick with the synthetic. With mineral oil, I recall the occasional mild seizure on a high spot; tear it down to poilish it up. Never happens with synthetic. Cam.
Gabe, how are the bones healing?
Slowly :(
But I'm enjoying the time to fix up the bikes and make sure they are all ready for the go day. BTW, got a KX green cast. 8)