I have a problem with the throttle....it seems like there is too much slack so I have to compensate and pull on the throttle cable to be able to have it run. I don't know if there is somewhere where I can take up the slack by tightening it or do I have to replace the throttle cable for it to run right..but I need the manual to see what it shows....craftsman 26" electric start model number 247.88370. Can I get some help. Thank You...