Posts
8
Joined
12/2/2018
Location
GB
Hi guys, I've got a 2009 RMZ 450 and I'm in love with this bike.
Had this bike for a while now and was kept well maintained but decided it was time to do piston and rings just for good measure. As per usual, after replacing the piston and rings the bike would need shimming and timing so I took it to a friend of mine who has done this countless amount of times on all our friends bikes (this is were I f*cked up, should of took it to the shop but there wasn't ever and issue before on any of the bikes he had done before and he actually works for a specialist motocross mechanics so I didnt know the wiser). After a while of him having the bike, I got a call to come round as there was an issue, when we go to tighten the cylinder head bolts, a few of the bolts 3 or 4 of them go to tighten and then they become loose indicating to me that they've heads threads have been rounded from where he was shimming. Everything else is perfect except them so I don't really want to spend £400/500 on an new Cylinder head plus I'm at university so finances are tight! Is there an alternative to this issue like re-threading and getting bolts slightly bigger etc
Sorry if this sounds nooby but I've never come across this issue before so I am kinda lost
Thank you in advance my bros and brolets!
Had this bike for a while now and was kept well maintained but decided it was time to do piston and rings just for good measure. As per usual, after replacing the piston and rings the bike would need shimming and timing so I took it to a friend of mine who has done this countless amount of times on all our friends bikes (this is were I f*cked up, should of took it to the shop but there wasn't ever and issue before on any of the bikes he had done before and he actually works for a specialist motocross mechanics so I didnt know the wiser). After a while of him having the bike, I got a call to come round as there was an issue, when we go to tighten the cylinder head bolts, a few of the bolts 3 or 4 of them go to tighten and then they become loose indicating to me that they've heads threads have been rounded from where he was shimming. Everything else is perfect except them so I don't really want to spend £400/500 on an new Cylinder head plus I'm at university so finances are tight! Is there an alternative to this issue like re-threading and getting bolts slightly bigger etc
Sorry if this sounds nooby but I've never come across this issue before so I am kinda lost
Thank you in advance my bros and brolets!
If it were me id just replace the head and take note to not strip the threads next time.
The Shop
Post a reply to: RMZ 450 2009 Cylinder Head thread rounded! HELP PLEASE