motor whistles

Rick73

New Member
Jan 25, 2018
8
0
1
Illinois
I'm new at motorized bikes. I got a bike up and running for about a month now. still in break in period on my 2nd gallon of gas running a 32:1 mix. I have been noticing that when I'm riding I get a whistle from the motor like a tea kettle or a steam engine. is that normal?
 

crassius

Well-Known Member
Sep 30, 2012
4,032
155
63
USA
no, a squeal usually means grease is needed at bucking bar or small bevel gear - never heard of a whistle, but could be muffler not tight or head gasket loose