Hello, new member here. I have a White LT-2200 Model # 13A6606H790 SERIAL # 1A154H20132. I've had problems this season with the carburetors needing cleaned. I had that done by local repair shop & it is now running fine. However, after getting it home the V belt came loose . I returned it to the repair shop, they replaced the drive (long) belt, 2 pulleys & replaced a broken bolt in the v pulley. When I got it home I mowed my yard (about 2-1/2 acres with steady slope) & the grass was very high & thick. The v belt came off a couple of times & finally broke & shredded. I replaced with a after market (it was July 4 holiday, repair shop closed) & finished my mowing. As I finished the mower stopped & I noticed the v belt was off again & the tension springs (part # 732-0963 & 732-0384) broke were broke. I have since replaced the v-belt with OEM, replaced both springs per OEM. However, the mower now runs very slowly; about 1/2 the speed as normal. I noticed this seems to be a recurring theme among this era of mowers regardless of manufacturer. However; there is little information of how to fix it or for that matter exactly what is wrong. My mower runs fine, cuts grass fine, just runs very slowly whether I have cruise control engaged or not. I was hoping the springs were the issue, but i've ruled them out. Any ideas on what the problem could be?