JB Weld fix

Ugh. I bought this KZP sight unseen from about 4 hrs away and after I got it home I found the source of the oil leak.

Got to love POs....
Seems to be holding but there is a pretty constant drip especially when on the side stand.
Suggestions? I can't see anything when the rotor cover is off. I can't tell if it is a crack or a hole. My plan of action is to pull the motor over the winter and see if I can get that epoxy off. Then maybe find a tig welder to sew it up.

Clean it up and tig it.

How does this crap come off? Wire wheel?

Heat gun. Get it hot enough and it will chip off.
Steve

Alumi-weld, hard solder or mig/tig. I'd chip it off and just get it patched up in the frame.

Don't have enough long term projects yet?

I bet the hole or crack is way smaller than the patch, so it may be a fairly easy repair underneath. If it's JB weld it's pretty hard to remove if the surface was clean when applied, you can chip some off and use some sort of Dremel attachment to get the last bits of. If you are lucky there might be oil residue between the layers, because it's such a bodge job repair, I bet the PO didn't prepare it fully, so it might not be fully adhered to the casing and may come loose in a big chunk.

Luckily it looks like they are able to weed out all JB Weld fanatics from med school, but why do they all flock up around bikes? Do the right stuff and mend aluminum with aluminum, tig’n up thing strait from the beginning isn’t that expensive.

I lost a part of the lower half of the ignition side once going down in 200Km/h +. It took a fair bit of time welding and shaping it back but it was a fix that lasted.

In desperation I used some on the gap where the O ring is in the middle of the head gasket. I cleaned it with carb cleaner and forced it in there. It slowed down the leak but didn't stop it. The O ring was broken in three places and it was 6 months old. That stuff came right off. The oil got under it. I don't care what the package says, it's junk. So was the O ring that came with the top end kit. I don't want to flog a dead horse so I won't mention who sold it to me.
Steve

floivanus wrote: Don't have enough long term projects yet?

LOL You have no idea...

Trust me I know; and can relate.
Which is why I said knock that garbage off (no matter what anyone says, yes it could work, but it is always a temp patch) take it to any small time welder (there's someone in the yellow pages that does it at home in his garage I PROMISE that, toss him $20 to weld whatever tiny crack that really is with the motor in the frame and be done in no time, especially if the bike is healthy and runs fine.

Edit; if I put all the bikes that arent kaws or current riders in my sig it would get rediculous even to me

Die grinder with a carbide burr on the end should do it. I do like the idea of heat gunning it too.
Then Tig for sure.
On the other hand JB weld does have some uses. I repaired cosmetically a broken fin segment then painted my motor and you would never know its there.
Barney

I think JB Weld is brilliant stuff. I wouldn't rubbish it, but then again so is Duct tape, but you wouldn't use either to fix a holed piston. It's a case of "horses for courses. I have a big piece of land south of where I live. We went down there with the travel trailer and dirt bikes for a few days. First evening one of the teenagers crashed his DT Yamaha breaking the handle bar switchgear and throttle housing resigning him to spending the rest of the time being a spectator. But I had Quick JB weld in my trailer spares box, I glued it back together, letting it set overnight, thinking it was a long shot, but it held for the rest of the trip despite some further spills and is still doing it's job years later.

In my experience there is no product known to man that can stop an oil leak by just applying it from the outside like a band aid, unless there is a way to remove all oil from the bonding surface and something for the "jollop" to key into. I did manage to fix a leaking trim tab cylinder on my boat with JB weld however, It had a hairline crack near where the hydraulic line fitted. I filed a notch into the polymer where the crack was. and then, having cleaned it again with carb cleaner applied the JB weld. Again this was a last minute repair without which a trip would have been spoiled, as when the problem was noticed there was no time to get spares and effect a full repair. So I always keep some JB weld on hand, it can't do everything, but it's better than a cancelled "social engagement" and definitely isn't garbage, but at the same time it can only perform minor miracles not major ones.