I have a 2004 Honda trx 450r that when I got had an idling issue. I took it in to have it fixed and after a month the same problem I took it there was still happening, they replaced the top end, new plugs, air box lid was put on because it didn’t have one. Today I changed the jets in the carb with the Fmf kit with the jets it recommended, it would only stay on idle if it was running at a very high idle, but I finally got it to idle low stay steady. As I try to shift into first it bogs down and dies unless you lightly let go of the clutch it sounds like gun shots because it’s back firing so bad then dies. Kicks over on first kick I just can’t figure out why it won’t run

I have a 2004 Honda trx 450r that when I got had an idling issue. I took it in to have it fixed and after a month the same problem I took it there was still happening, they replaced the top end, new plugs, air box lid was put on because it didn’t have one. Today I changed the jets in the carb with the Fmf kit with the jets it recommended, it would only stay on idle if it was running at a very high idle, but I finally got it to idle low stay steady. As I try to shift into first it bogs down and dies unless you lightly let go of the clutch it sounds like gun shots because it’s back firing so bad then dies. Kicks over on first kick I just can’t figure out why it won’t run