I have friend who has a MORRISEY BRAVO that was built around a Tartan Twin many years ago. The Tartan has never been started. It is the glow version. We are thinking of converting by adding a CH ignition and changing the carb. I have been told the Walbro WT158 is a good carb for this conversion. Here are my questions and concerns.

What fuel mix (gas to oil ratio) will be required to run this engine on gas?

I have been told the power will be down after the conversion. How much power will the engine lose on gas?

Thanks

Yes you can convert, the power will be down about 15 to 20%. You can use any quality 2 stroke oil, follow the mixing instructions on the oil you use. You can't go wrong with Pennzoil "Air Cooled Oil" mixed 32 to one.

Can't help with the carb selection but I am sure someone will step in and give you some info on it.

WRK