Sergio.... Is your tank in the stock location?? If so do you have
any problems with the engine flooding/starting??
I forgot who else uses the Mag 91 4c... If you see this post and
are flying with the combo... Can you answer the same question:-)

I guess that's part of the reason for being so slow in repairing
and finishing my engine swap... I did lower the tank about 1/4 to
1/2" but the center of the tank is still about 1/2" above the carb..
And I would hate to glue all back and have starting/running probs..
I've been really lucky on engines and had no problems... Well
except for trying to fly too long... Hate to start now

I had no problems with the YS.. But that's a different animal all
together

Anyway have a Great one guys!!