very concerned flames

since i got a straight pipe on my almost 8 year old ct200u it’s been shooting 3+ inch long flames for more less 5 seconds whenever i let off the throttle

is this healthy or will my engine blow up should i put the muffler pipe back

since i got a straight pipe on my almost 8 year old ct200u it’s been shooting 3+ inch long flames for more less 5 seconds whenever i let off the throttle

is this healthy or will my engine blow up should i put the muffler pipe back