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Everything Dirt Bike
General Dirt Bike
Best way to break in a new topend?
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<blockquote data-quote="ossagp" data-source="post: 182202" data-attributes="member: 1650"><p>Mine is the same. Probably slightly more important to stay more on the dry side with the ferrous cylinder actually.</p><p></p><p>I am probably less critical of the warmup time on my air cooled ones than the liquid cooled ones. Some people have had a little trouble of getting the liquid cooled ones too hot on the stand and then hitting speed too fast on a cold day (no thermostats usually) and causing what amounts to being a cold seizure. The only ones I talked to were trying to heat cycle. It hasnt happened to me though in a WHOLE bunch of chances with anywhere from 1 to 4 cylinders. </p><p></p><p>My procedure for the air cooled ones has always been a certain amount dictated by the weather since running one hard before it is at least running smooth without the choke or enrichener new or old has sometimes left partially seized evidence on the walls (aluminum deposits). </p><p></p><p>My last few cylinders went together getting some atf rubbed into the cylinder with a clean cloth. dried down as far at the cloth would take it. it cleans the little partciles out even better than solvent will or brake clean that way. 20 hour tear downs have shown the closest thing to new cylinders that I have ever seen. That little procedure came to me from a man named Tryce Welch. Pretty simple and subtle but noticeable and worth the step. Tryce has built rigs that way for a pretty long time and was the man who built most of the stuff that the Haydens used before getting factory rides.</p></blockquote><p></p>
[QUOTE="ossagp, post: 182202, member: 1650"] Mine is the same. Probably slightly more important to stay more on the dry side with the ferrous cylinder actually. I am probably less critical of the warmup time on my air cooled ones than the liquid cooled ones. Some people have had a little trouble of getting the liquid cooled ones too hot on the stand and then hitting speed too fast on a cold day (no thermostats usually) and causing what amounts to being a cold seizure. The only ones I talked to were trying to heat cycle. It hasnt happened to me though in a WHOLE bunch of chances with anywhere from 1 to 4 cylinders. My procedure for the air cooled ones has always been a certain amount dictated by the weather since running one hard before it is at least running smooth without the choke or enrichener new or old has sometimes left partially seized evidence on the walls (aluminum deposits). My last few cylinders went together getting some atf rubbed into the cylinder with a clean cloth. dried down as far at the cloth would take it. it cleans the little partciles out even better than solvent will or brake clean that way. 20 hour tear downs have shown the closest thing to new cylinders that I have ever seen. That little procedure came to me from a man named Tryce Welch. Pretty simple and subtle but noticeable and worth the step. Tryce has built rigs that way for a pretty long time and was the man who built most of the stuff that the Haydens used before getting factory rides. [/QUOTE]
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Best way to break in a new topend?
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