Thanks for your reply Bax

when i brought the model i flew it.... he started it up and got every thing ready... no hard landings, the whole plane is in perfect condition. I think he was using a castor-based fuel as i have had to pull the plug out and empty goop from the cylinder a few times in storage (i kept it in storage for 2 weeks after i brought the moddel as i was having my radio gear checked out), It does not feel stiff as in something is bent or damaged if just does not feel as free as moving (i think because of of the castor in the cylinder) since i managed to get some om my fuel through the engine it has loosened up a bit.. so i will try and prime some more fuel through the cylinder .

Adam