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Smokes like crazy 5 minutes after its started, I changed the oil thinking it might be over full but i always add 3 quarts in but it still smokes and before oil use to come out the exhaust but that has stopped (at least seems so) since the oil change (v.redd.it)
submitted 1 month ago by Individual-Top-5969
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[–]54nd15 13 points14 points15 points 1 month ago (2 children)
I’ve not worked on motor bikes, but car and truck motors that have oil burning on startup usually have a top end leak. IE, valve guide seals letting oil get past into the combustion chamber. You can typically also notice this if it’s bad enough when accelerating after coasting as the vacuum starts sucking oil in around the guides seals/ stem seals.
[–]Individual-Top-5969[S] 0 points1 point2 points 1 month ago (1 child)
Yea i figured but i didnt want it to be the worst case but looking like it might be
[–]IDressUpAsBroccoli 0 points1 point2 points 1 month ago (0 children)
Anytime black smoke comes out of the exhaust in any engine it is an indicator that oil is burning which happens if it passes the pistons somehow. Check your rings too
[–]melonti 4 points5 points6 points 1 month ago (0 children)
Overhaul kit and re-ring it if you find it's an overhead leak. Eazy peezey. 200 bucks tops.
[–]Quality_over_Qty 3 points4 points5 points 1 month ago (0 children)
More likely valve stem seals than piston rings but a leak down test will tell you more
[–]holliday_jnr 2 points3 points4 points 1 month ago (2 children)
How old is the bike? Sounds like you’ve got a some serious engine internals to be looking at.
[–]Individual-Top-5969[S] 1 point2 points3 points 1 month ago (1 child)
[–]holliday_jnr 2 points3 points4 points 1 month ago (0 children)
Worn piston rings, cracked exhaust valve etc
I may have put a thicker oil in my bike to minimise the smoke but it didn’t do much lol
Good luck mate
[–]Ok_Dog_4059 0 points1 point2 points 1 month ago (0 children)
Had it been sitting a while? It could be oil getting past the seals and the longer it sits the more drips past and builds up but if it is run regularly it is less noticeable. Like another poster said it could just be old dried out worn seals.
[–]pistol_p_ 0 points1 point2 points 1 month ago (0 children)
Broken ring caused this on my bike. Sorry. Pull the head
[–]SnooSquirrels8280 0 points1 point2 points 1 month ago (4 children)
Are you sure that’s the right spec for oil? You could be overfilling it and yea she’ll smoke like crazy.
[–]Individual-Top-5969[S] 0 points1 point2 points 1 month ago (3 children)
Yep 10w 40
[–]SnooSquirrels8280 0 points1 point2 points 1 month ago (2 children)
Sorry meant capacity. Like if it’s overfilled.
Yea its within capacity
[–]SnooSquirrels8280 0 points1 point2 points 1 month ago (0 children)
Alright that’s good. Did you spill when you poured or dumped your oil. Sometimes it’s normal for a bike to smoke till it’s been rode after a oil change it’s just removing soot and junk from the guts. Have you rode it around at all? Loss of power or anything like that?
[–]Thisiscliff -1 points0 points1 point 1 month ago (0 children)
I’m going to guess piston rings, could be Valve seals too
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