OMC Questions you motorheads

[THEFERMANATOR]

Originally Posted by Stinky_Hooker

I have know this one for about 5 years and its always been solid as a rock and super dependable. I hope it keeps on for me!

Run GOOD oil in it, ditch the VRO if it has it still and premix it, and run ethanol free fuel and it should run for a LONG time still. Just make sure to decarb it as the biggest killer of 2 strokes is carbon buildup that causes a ring to stick.

[spareparts]

Originally Posted by THEFERMANATOR

Run GOOD oil in it, ditch the VRO if it has it still and premix it, and run ethanol free fuel and it should run for a LONG time still. Just make sure to decarb it as the biggest killer of 2 strokes is carbon buildup that causes a ring to stick.

what he said X a billion

[aussie]

i have had a old 70 jonno and the connecting rod bolt came loose and destroyed the engine ---i also have a friend the same thing happen to it both these engines were never touched from new---i was thinking the bolts may of strecthed or rods anyone have an answers

[THEFERMANATOR]

Originally Posted by aussie

i have had a old 70 jonno and the connecting rod bolt came loose and destroyed the engine ---i also have a friend the same thing happen to it both these engines were never touched from new---i was thinking the bolts may of strecthed or rods anyone have an answers

You normally only hear of this in engines that were rebuilt and the rod bolts re-used.

[spareparts]

most of the time I've seen the rod bolts stretched or the rods broken, the piston had seized, causing the rod failure, Was it on the middle cylinder? I do know the two cylinder 40-55 hp had a history of rod failures(and lower unit issues)

[Stinky_Hooker]

What you you mean "decarb" it?

[Blue_Runner]

Google "Dunk's decarb method"

[spareparts]

Originally Posted by Blue_Runner

Google "Dunk's decarb method"

you can use mercury power tune or do a shock treatment of Yamaha ring free(or mercury carbon guard)