Ok the heading staes it. a full rebuild pistons are in head is on but no timing done yet. So how do I find TDC compression stroke. I know piston 1 TDC but how do I find compression stroke ? Is that determined by fitting the new cogs on the crank? It is a D40 YD25 motor. I have given up on my son coming to help so I intend continuing the build myself.
Finding TDC compression stroke
- Thread starter Tiger64
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