Guys would like to ask what is wrong with the mower speed seemed as is the belt was slipping. Finally I ordered a new belt and installed it today. Installed it, put mower deck back on and started it up. Initially I would mash reverse pedal and it would start moving in reverse, but push the pedal further and it did not move any faster. I let off the reverse pedal pushed the forward pedal and it started forward, pushed pedal further down and the forward speed did not increase. I repeated this 3-4 times then it stopped responding in either direction. no movement what so ever in any direction. Alll this was done at 1/2 to 3/4 throttle. I thought the belt had came off, shut engine down and removed the deck again to go underneath and see better. Everything was in order, all belt routing seemed to be in order. Now I am at a standstill pondering what might be amiss. Looked my belt # up on the John Deere site and the old belt has the same # on it. So it seems I have proper length. I jacked back of mower up and started it up and looked underneath the belt is not turning where it goes around engine pulley. Reached up and pushed forward pedal and the belt was still a little too loose to turn on the engine pulley. According to the belt routing someone posted here I have the belt around the pulleys correctly. Any ideas or can nI adjust the slack?