Hi, I have a 2003 WR450F that's been standing in my garage for almost 4 years.
I'm not able to start it.
When I step on the kickstart (e-start broken) many times it won't start and a loud bang like a shotgun is the only thing that happens.
I have filled up with new gasoline, new sparkplug and I'we cleaned the carb.
I even tried to tow it after a car (because the kickstart broke off my bike), but it just sounds like I'm having a war on my street
I've taken of the top of the engine, and it looks like the valves not stuck.
Not being the best dirtbike mechanic, what to do?
Can a broken woodruff key be the fault?
The sparkplug is wet, and sparks. But is the timing wrong?
I'm from Norway, sorry for bad english.