I knew I had a minor vacuum leak, but it got worse all of sudden while at a stoplight. In trying to get through to the next block, the engine started to knock. (My guess is preignition thanks to the ...
I can't get it to fully open wide and run. 2013 model, any help would be great. P.S. had a 80 cc modification done and also the jets were upgraded as needed. I'm thinking all my air hoses are out of ...