Joseury Bonilla   Posted December 17, 2020 Is this normal or am I in deep 💩 Share this post Link to post Share on other sites
William1 Â Â My Rides (2) Posted December 17, 2020 Yes 2 2 Share this post Link to post Share on other sites
FLO_Rida   Posted December 17, 2020 (edited) Normal..... End of thread. Don't listen to people about cracks....... TOTALLY NORMAL.... NOT CRACKS. IT IS IN THE CASTING MOLDS. Edited December 17, 2020 by FLO_Rida 6 3 Share this post Link to post Share on other sites
76xtdrvr   Posted December 17, 2020 Look at it this way for peace of mind; if they were cracks, you'd have oil dripping out everywhere. 6 1 Share this post Link to post Share on other sites
DaveCR Â Â Posted December 17, 2020 It is from shrinkage of the metal as it cools and is perfectly normal. https://www.thomasnet.com/articles/custom-manufacturing-fabricating/shrinkage-casting/ 2 Share this post Link to post Share on other sites
DEATH_INC.   My Rides (6) Posted December 17, 2020 9 hours ago, Joseury Bonilla said: Is this normal or am I in deep 💩       Take a closer look at that big one. It looks a little big for a casting flash. See if it'll sand off. It kind of looks ok anyway, inspect the area where it meets the machined face, and check whether it goes into the bearing bore too. I can't see anything on the pics, but look closely and see if you can see it through either of those. You may have to pop that bearing out. Share this post Link to post Share on other sites
adnohguy   Posted December 17, 2020 (edited) I have seen several TTers in the past replace the cases because of casting flash. I asked for the old cases and they sent them to me. I intend to use them in future builds because kick start bikes that I work on are known to break cases around the counter shaft bearing behind the clutch.  Edited December 17, 2020 by adnohguy Share this post Link to post Share on other sites
OKDinosaur   Posted December 17, 2020 I suggest you coat the entire engine in a thin layer of JB weld, just to be safe. 2 1 7 Share this post Link to post Share on other sites
JVP   Posted December 18, 2020 What bike is this off of. The Japanese and Europe bikes are usually better than that. Is it Chinese? 1 Share this post Link to post Share on other sites
3Deuces   Posted December 18, 2020 (edited) You're in deep schit for sure. That case is junk, I mean how did you even manage to crack it that much?                           Wish I had a dollar for every one of these threads... Edited December 18, 2020 by 3Deuces Share this post Link to post Share on other sites
txkawboy   Posted December 18, 2020 If in doubt, put on your jeweler's loupe. YZ's have so many of these that they will make u shart yer pantaloons. Share this post Link to post Share on other sites
