RCU Forums - View Single Post - Do you really need a tach for breaking in a 4-stroke
Old 04-22-2003 | 03:27 AM
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Basil Yousif
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Default Do you really need a tach for breaking in a 4-stroke

I am going to break in a TT91 4-stroke and it states you need a tachometer so the RPM's dont get over 5k. Do I really need a tach or can I just let the engine run rich and slow to break it in and not have to use a tach.