Posts
4561
Joined
4/1/2008
Location
TN
US
What I have is a Husqvarna Fc450 Rockstar bike 2018 (or some say 2018.5) which is very close to the 2019 450SXF. It is a bear to start when cold. I ran the battery down today trying to get it started and had to put in my spare battery. When it starts it springs to life instantly. I did the easy things first. The valves are in spec, installed new spark plug, set TPS from .58 to .60 volts, changed inline fuel filter and dumped gas and put in fresh (should have been fresh anyway). I went back to stock muffler from FMF and did the idle reset with a fan blowing on it for 5-6 minutes like the dealer does with a new bike. It runs great when it starts with maybe a rough loping idle at worse. I hate to start throwing parts at it without asking for ideas first. Help!
Does it run better once its warmed up?
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