It ran good last year. I winterized and put in new battery. Didn't want to start back up this year. I ended up cranking too long on starter and it fried. Installed a new starter, after pulling the plugs in and out several times to clean them it started. Ran for a little while. i had it at full throttle then it just stoppped. After inspection front spark plug wire vibrated loose and rear spark plug was loose and the spark end of the plug was bent. I replaced spark plugs and secured the spark plug wires. Now having issues with just getting it to start. Any help or suggestions would be appreciated. Is there any way or any parts to make this thing more reliable at start up?