Should it be so stiff ?

ScottyDog · 21 October 2006, 15:03

Forgive me if this thread does not live up to the title !

I noticed the movement of my throttle had become stiffer than usual when going from neutral to Fwd. and back to Rev. (although the remaining travel as I opened the throttle remained OK). I eliminated the cables and the gearbox (as these are smooth as silk on their own). The culprit is the pivot point directly under the engine. I tried removing the bolts from each side of the bracket that holds it in place but cannot remove it without taking the complete engine off it's mount.

I applied lube and the stiffness reduced a little but it still feels tight, despite being quite smooth and even throughout it's range of movement.

My question is essentially: Should there be much friction in this pivot ? Is it intentional to stop the motor jumping out of gear or is this left to the control cable ?

Comments welcome, thanks.

Paul Beaurain · 23 October 2006, 19:00

Hello Scotty Dog
My suzuki 115 was the same.
Initially I thought it was cables.
I replaced these with low friction variety - and no improvement.

It is important to only judge the stiffness with the engine running. with the type of gear selection the initial cog swop will be stiff if engine off. as gears can't mesh.

My engine was due a 300Hr service and the dealer looked at it. For what he charged 1/2 hr labour on top of service, it cant have been major - it was it that mechanism you spoke of. He did drop the leg to lubricate the required part.

Not the complete answer for you but - points in the right direction (I hope)

paul

ScottyDog · 23 October 2006, 19:42

Thanks, for the reply.

I have lubed the offending part in situ and it's much better. I eliminated the cables as they were very loose when disconnected. The gear selector was also not at fault as I had taken the gearbox off.

Cheers.