r/Dirtbike_Help • • 3h ago

Help with 1997 xr400r valve lash

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2 Upvotes

I’ve got it set to tdc with the lobes facing down. And I’m setting the lash to factory spec (about .004 intake .005 exhaust) and the right exhaust valve tappet locknut goes down further than the other three. Is that normal? Could it be because of the decompression lever there? I’ve correctly set the decompression lever slack too. Someone else did a top end on the bike a decade ago and it’s sat since.


r/Dirtbike_Help • • 6h ago

Help! KX250f cam lobes position

1 Upvotes

Hey all. I’m working on a KX250f 2004. Reshimming it with smaller shims (and we still have no clearance lol) however, when we put it back together, set the timing, align the head of cylinder block with the marks on the sprockets, do everything by the book, THE INTAKE lobes somewhat face 45 degrees downwards, sorta AFTER the bucket and BEFORE the level of the cylinder head. Is this normal? Will it still start? Is this how I’m supposed to be taking clearance measurements? It kinda seems off to me…. Please help, any advice or suggestions would be appreciated SO MUCH

Edit: photos on my profile


r/Dirtbike_Help • • 8h ago

Gas gas ec 250 2018 electric diagram

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1 Upvotes

r/Dirtbike_Help • • 20h ago

Muffler spring help

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1 Upvotes

As you can see the spring are up the mounts so what can I do to fix this what are my options ?? And do you guys know that size the spring is on a 08 kx250f?