Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

i just bought a used 826 JD snowblower.

after cleaning the carbs it runs great at idle but at high speed it backfires .
i adjusted the low and high speed needles an i am 100% shure it is not runniung lean.
could it have something to do with the timing or governour? i put regular 87 in this machine.
new plug.
when i said backfiring i ment firing trough exhaust(mufler) Bang bang.
also how much oil does this 8hp engine take? and wat grade . sea 10W30???

thanks

just want to be in shape before the snow comes.