Tohatsu 40hp not revving up

[Mamiji]

After changing the head gasket on my Tohatsu 40hp M40C, I am not getting the power which I was getting before and it sort of feels like it is back firing. Do I need to adjust the idling or have I missed or messed something
Would appreciate any help!

 

[pvanv]

Verify timing.

 

[Mamiji]

Paul, the timing seemed fine before until I changed the gasket and tried adjusting the Idling, whereby I might have messed the idling even more. Would that be the case or still do you think I need to verify the timing?
Thanks!

 

[pvanv]

Go through the carbs and check timing. something is amiss.

 

[Sea Rider]

Which was the torque force applied when changed head gasket, was it retorqued soon after ?

Happy Boating

 

[Mamiji]

Seems to be working fine now after re-torquing... may be that might have been the problem!
Thanks for all the help!

 

[Sea Rider]

Seems to be working fine now after re-torquing... may be that might have been the problem!
Thanks for all the help!

Which was the re torque force applied in Newton Meters ? there's a bolt torquing sequence you must follow while torquing in torque steps...

Happy Boating