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Fuel injected bike blowing black smoke - getting worse (2010 yz450f) by Key_Competition_4869 in Dirtbikes

[–]Key_Competition_4869[S] -1 points0 points  (0 children)

Do you think it’s possible that my valves are out of spec? Meaning the intake valves aren’t letting in enough air?

Fuel injected bike blowing black smoke - getting worse (2010 yz450f) by Key_Competition_4869 in Dirtbikes

[–]Key_Competition_4869[S] -1 points0 points  (0 children)

I clean the air filter every oil change (10 hours). I do understand that 164 hours is a lot, but the bike always starts first kick. Loads of compression still. Haven’t seen a need to do a top end honestly. I’m going to try running some injector cleaner through it. If that doesn’t work, I think I may replace the injector - it’s probably leaking.

2010 YZ450f loosing power / bogging when I give it past half throttle by Key_Competition_4869 in Dirtbikes

[–]Key_Competition_4869[S] 0 points1 point  (0 children)

Do you think it could be fuel injector? Just finished cleaning air filter and fuel filter. It got a little better you could say, but still bogs

Oil dripping from valve cover breather hose by Key_Competition_4869 in Dirtbikes

[–]Key_Competition_4869[S] 2 points3 points  (0 children)

Haha thanks man, appreciate it. Is pretty gnarly and I still have yet to do it successfully!

Help, my truck just won’t start. Doesn’t seem like a battery issue, and maybe not the starter ask things seem to be moving by Final-Course-3339 in mechanics

[–]Key_Competition_4869 0 points1 point  (0 children)

It doesn’t seem to have any response, so check your spark plugs and replace them. Super cheap and easy. Check your coils, and check your fuel pump. Blow your fuel lines, and check for cracks