For sure coming from in front of exhaust. Below the crank. Again, right where those tabs are. Made a video. Starts symptoms at about 2:30. http://m.youtube.com/watch?v=0IDs-JEWtS8 this is the full warm up cycle.
Sent from my Z30 using Tapatalk
08-28-2014 03:42 PM
dlhmatt
1st Service Completed
Orlando
Posts: 117
Joined: Dec 2013
After 40 miles I'm dead sure this made my shifting back to 100%. After the first thousand or so miles one day third to second gear started clacking and it just got worse and worse. I hope someone else who's transmission sounds like a Honda super cub transmission does this soon.
(This post was last modified: 08-28-2014 06:18 PM by dlhmatt.)
08-28-2014 04:01 PM
Lord Popgun
I find your lack of RLETs disturbing
Virginia Beach
Posts: 10,457
Joined: Apr 2013
(08-28-2014 03:42 PM)kDiqq Wrote: For sure coming from in front of exhaust. Below the crank. Again, right where those tabs are. Made a video. Starts symptoms at about 2:30. http://m.youtube.com/watch?v=0IDs-JEWtS8 this is the full warm up cycle.
Sent from my Z30 using Tapatalk
Just watched your video. Boy is that bad... like you said it's doing it all the time so now you can take it to the dealer. Does it speed up with rpms?
No!!!! It vanishes at every other RPM!!! If I clutch out while on the brake and drop it, it goes away, rev up, and goes away again. Once it gets to operating temperature it goes away again. Its only once it's going through the warm up period... makes me stay up at night and cry... I will be going to the dealer next Tuesday. I really hope it something simple like the oil pump rattling in something
Sent from my Z30 using Tapatalk
08-28-2014 04:17 PM
dlhmatt
1st Service Completed
Orlando
Posts: 117
Joined: Dec 2013
(08-28-2014 04:17 PM)kDiqq Wrote: No!!!! It vanishes at every other RPM!!! If I clutch out while on the brake and drop it, it goes away, rev up, and goes away again. Once it gets to operating temperature it goes away again. Its only once it's going through the warm up period... makes me stay up at night and cry... I will be going to the dealer next Tuesday. I really hope it something simple like the oil pump rattling in something
Sent from my Z30 using Tapatalk
It sounds like piston slap from the video. YouTube motorcycle piston slap and compare...
I've had piston slap in almost every motor I've raced. Its well below the crank and my stethoscope picks up nothing above the crank. Plus I think piston slap would only occur at cold. At least that's the case with my race motors. Ugh man! I thought getting a Honda would be the end of my reliability problems haha I think I got a fluke
Sent from my Z30 using Tapatalk
08-28-2014 06:07 PM
Randy B
Road Warrior
Palm Bay FL
Posts: 2,540
Joined: Apr 2013
I can't say with any certainty that it is piston slap. From the phone camera video that's what it sounded like to me. You've dealt with piston slap before so yeah i would expect you to be able to pick up on that on your own but not knowing your past experience i wasn't sure if you have ever heard it before. How many miles are on your bike?