Old mercury 7.5 fuel/oil ratio question...

toxx · #1 June 9th, 2006, 08:07 PM

Hello motor experts, I just bought an old MERCURY 7.5 thunderbolt ignition (kiekhaefer) 1970 or ? there is no more serial or model number on the plate (gone) there is a number written on the motor block : 2958311 (serial ?)

Just wanted to know if anyone outthere knows which is the best fuel-oil ratio I should use for this old mercury

Thanks

I shall re-post if motor is't starting

JB · #2 June 9th, 2006, 08:37 PM

Ahoy, newbi.

Welcome to iboats.

50:1 will work fine in that engine.

toxx · #3 June 10th, 2006, 07:28 AM

Well, big thanks JB for the fast reply, will try that today.