replacing valve seals on a 110cc? Hard?

[hdeuce]

how hard is it to do valve seals on a 1985 110cc? Will I need any special tools? My bik smoles for a few seconds when I start it and then goes away. I am assuming valve seals??

Thanks

[Yamaha_Rules69]

Sounds like valve seals would be an accurate guess to me. To remove the valves, you will need a valve spring compressor to remove the retainers that hold the springs on. Usually when replacing the seals it is a good idea to at least give the valve seats a lap and possibly new valves, so then you can ensure they will seal properly, and be clean.