sparks flying

[xcracer416]

last night i cranked up my 400 and sparks was flying out of my exhaust, just wondering what it could be. I raced it sunday in a harescramble and it was smokeing a very little at the end of the race.

[LazeR]

Do you have your spark arrestor in your silencer? If not that could be the culprit!

[xcracer416]

i and running a dmc dual, without a spark arrestor