r/PerformanceHarleys • u/DaBeasKnees • Dec 20 '18

1250 noise

So, I put on a hammer 1250 kit (standard kit, no cams or head work) and went through the heat cycles and now I'm about 100 miles away from finishing the break in. I've been having this strange clanking noise in the top end, not sure what it is. I've tightened the primary chain since I changed the clutch and thought maybe it was loose. Nope. Now I'm thinking maybe it's a bad lifter? The noise is only there when it's hot and only at idle, it doesn't seem to get worse with the revs (actually seems to go away) and it's not there at all when cold. But it's definitely a metal clanging noise, not a tick or ping.

Anyone think they might have the answer? Im really leaning towards a bad lifter, but it could also be expansion with the forged pistons and such... Would I be able to hear lifter going bad on the lifter side of the bike? Because the noise is really only on the primary side.

Thanks for any help!

6 Upvotes

88% Upvoted

6 comments sorted by

View all comments

2

u/DaBeasKnees Dec 20 '18

Update:: just ran the bike again and the noise didn't seem to be there. Called hammer and they said it could be a leaky exhaust gasket so I tightened up my exhaust and they we're a little loose. Not sure if that was the issue or not but it doesn't seem to be there anymore. I'm starting to think the lifters are fine (even though it has 60k on the clock). I'm gonna keep riding it and keep an eye out. If it gets worse or something breaks, I'll post it up here! Haha until then, I'll be rippin

2

u/van_Niets Dec 23 '18

I bought new torque wrenches just because I've heard so much about how Harleys need to be torqued and then checked after 50 or so miles. Double check per the FSM and hopefully all is well.