Doing a full restoration on my 1978 TY175. Someone who has owned the bike before me has kindly (said with sarcasm) drilled out the threaded nut which is welded onto the bottom engine mount at the rear of the engine. Could someone please tell me the size of the thread (i.e. M7, M8, etc)which should be in this engine mount. For some reason the hole in the engine which this particular bolt slides through looks bigger than the other two. Is this the case ? Also, the top mount at the rear of the engine has a bush which goes through the crank case. Should the other two mounting holes in the engine have this also ?
Your advice would be much appreciated.
Gareth