Hi, Firstly i am new to this forum but have been reading many of your threads over the past few weeks. great info everywhere you look!
I have very recently purchased a used 2005 450x road registered pretty new to the 4 stroke dirt bike scene, have road sport bikes and 2 strokes many years ago.
the crf is a pig to start when cold and warm. really struggling with it, it has been stood for a good while and battery has next to no life for electric start.
i have noticed when cold the bike is much easier to start when choke is off.
when it is running after only a very short time of ticking over the exhaust header is glowing bright red, i have read some things on this but only a little and have seen mixed opinions, What i would say is.. mine GLOWS very red.
The bike also back fires ALOT. big flames and pops and bangs like crazy on deceleration.
as far as i can see airbox is standard (not cut open) and has a full FMF system with power bomb.
also, i have no hot start cable, lever is there but no cable. could this cause any of the above problems????
any one advise me on what jetting set up just for full exhaust system? (i am at sea level)
could valve clearances cause all these issues?
any advice will be massively appreciated and my apologies for my lack of knowledge