After my son broke the pullstarter on his Hellfire, I put a rotostart system on it. Now that the new backplate is installed, Ican't get the hellfire to start.It normally started on 3-4 pulls of the cord. Also, it seems to be leaking fuel from the back plate where the rotorstart was installed, and a lot of fuel is getting to the exhaust pipe also.

Thoughts before Itake it to the shop?