Don't buy this.

[tigertim20]

I see your question got removed, along with two others, and no photo...... Apologies from all doubters accepted in advance.
Don't shoot the messenger, If the buyer gets killed on it next week when the weld lets go, it won't be on my conscience...

since you continue to run your mouth - let me ask, how about posting a scanned copy of your fucking 4711 or other relevant ticket, showing that your are at least knowledgeable on, if not an expert, in the field of welding as you seem so keen on suggesting you are.

You still didnt mention how you know of this alleged dodgy weld's existence - let alone how you know for a fact that it is unsafe.

put up of fuck off and take the chip on ya shoulder with you.

[ellipsis]

...the first serious weld I ever attempted was to the new peg I put on my XV750 flat-tracker...I had severe doubts for a lap or two then forgot about it...after five years of severe abuse the only thing that hadn't bent too bad was the peg I staked my life on...funny things those welds...it was a fucking UGLY weld...

[Spearfish]

since you continue to run your mouth - let me ask, how about posting a scanned copy of your fucking 4711 or other relevant ticket, showing that your are at least knowledgeable on, if not an expert, in the field of welding as you seem so keen on suggesting you are.

You still didnt mention how you know of this alleged dodgy weld's existence - let alone how you know for a fact that it is unsafe.

put up of fuck off and take the chip on ya shoulder with you.

Was it your weld ?

or

Was it a weld done by the same hand that did a weld on your gear and now your a little nervous?...

[tigertim20]

...the first serious weld I ever attempted was to the new peg I put on my XV750 flat-tracker...I had severe doubts for a lap or two then forgot about it...after five years of severe abuse the only thing that hadn't bent too bad was the peg I staked my life on...funny things those welds...it was a fucking UGLY weld...

funnily enough, to get your 4711 for example, they take your test piece away, cut it in half an xray the cunt to check for a good weld - you simply cannot tell simply by looking at it.

On something like a headstock, you would need to do several parallel runs with a slight overlap, it would probably look like shit for sure - but by no means does that indicate a poor weld.

[avgas]

I see your question got removed, along with two others, and no photo...... Apologies from all doubters accepted in advance.
Don't shoot the messenger, If the buyer gets killed on it next week when the weld lets go, it won't be on my conscience...

Seeing as you bought it. Doesn't that mean that you get killed?
Or am I missing some magical line where you said who you were and explaining what exactly was wrong with the weld.

[mossy1200]

Welding is so 2011 .Get with the program.

[Spearfish]

funnily enough, to get your 4711 for example, they take your test piece away, cut it in half an xray the cunt to check for a good weld - you simply cannot tell simply by looking at it.

On something like a headstock, you would need to do several parallel runs with a slight overlap, it would probably look like shit for sure - but by no means does that indicate a poor weld.

How do you tell a genuinely good weld that doesn't look so good from a shit weld?

I'm guessing the only way to be sure is talk to the welder or can someone with a welding background tell how the weld was built up?


(I'm looking at a part thats been welded)

[Drew]

How do you tell a genuinely good weld that doesn't look so good from a shit weld?

I'm guessing the only way to be sure is talk to the welder or can someone with a welding background tell how the weld was built up?


(I'm looking at a part thats been welded)

You really can't. As someone said, to get your 4711 ticket they hacksaw a sample in half and x-ray it. To check penetration of the weld material into the original bits.

Welding aluminium is SOOOO fuckin hard to get pretty, but it is easier to see how well the weld material has penetrated. Basically, if the welds look porous they wont stick. They can be bubbly, wonky, humpty dumty, and nothing to worry about, but if they look like lava once it's dried it's weak.

[tigertim20]

How do you tell a genuinely good weld that doesn't look so good from a shit weld?

I'm guessing the only way to be sure is talk to the welder or can someone with a welding background tell how the weld was built up?


(I'm looking at a part thats been welded)

you cant.
You need to get it x-rayed. A more accurate gauge of how good the weld is, is seeing the welder's current certificate, and knowing that its been taken to a place with a good reputation.

The look of the weld is cosmetic - some welds will be left proud, and others can be ground down smooth and painted over so your wouldnt see it, depending on application etc etc.

[Spearfish]

You really can't. As someone said, to get your 4711 ticket they hacksaw a sample in half and x-ray it. To check penetration of the weld material into the original bits.

Welding aluminium is SOOOO fuckin hard to get pretty, but it is easier to see how well the weld material has penetrated. Basically, if the welds look porous they wont stick. They can be bubbly, wonky, humpty dumty, and nothing to worry about, but if they look like lava once it's dried it's weak.

you cant.
You need to get it x-rayed. A more accurate gauge of how good the weld is, is seeing the welder's current certificate, and knowing that its been taken to a place with a good reputation.

The look of the weld is cosmetic - some welds will be left proud, and others can be ground down smooth and painted over so your wouldnt see it, depending on application etc etc.

Thanks for the info.

I guess the more critical the weld quality has to be the deeper the investigation, lucky in my case it only has to hold oil in.

[Drew]

Thanks for the info.

I guess the more critical the weld quality has to be the deeper the investigation, lucky in my case it only has to hold oil in.

Oh dear. Because engine casings are cast, they are bloody hard to weld, couple that with the amount of oil that has leached into the material, and there is no strength in the weld at all, so if it's welded round a sump nut or a mounting bolt, it will crack and leak. Almost everytime I'm afraid.

Couple that with the amount of oil that has leached into the material,

[nzspokes]

Thanks for the info.

I guess the more critical the weld quality has to be the deeper the investigation, lucky in my case it only has to hold oil in.

If its a sump plug you cant just helicoil it?

Ignore me if that has already been suggested.

[Drew]

If its a sump plug you cant just helicoil it?

Ignore me if that has already been suggested.

It's pretty much the only way that works with sumps, for me reasons listed earlier. That's a fail on late GSX-R models though, as they break the whole threaded section out.

[sharp2183]

I don't know about this bike, but if it is the same guy that used to be Cars on Demand then I had a pretty big issue with him about 2 years ago. My old man crashed my ducati 748 and got serious spinal damage to show for it. The bike had $13,000 of assessed damage including:

Bent frame, bent subframe, broken fairing/headlight stay, smashed front fairing, dented tank, pegs broken fairings all scraped up etc. It was fucked. The frame was VISIBLY bent. i.e shit looked way out of wack.

This guy (if it is him) bought it from turners, then advertised it on trademe as 'needing only cosmetic work. Naturally I found it and wrote a question advising bidders to ensure they get it checked etc, but saying it was a good bike beforehand and offering reciepts. The guy blacklisted me and wouldn't answer my phone calls.

He sold it for $4500 to a guy in wellington who then priced everything that needed to be done ($6000 incl. second hand parts and his own labour). He was shocked, realised it was way too much work and sold it on (disclosing all info when he did.)

So in my experience this guy was willing to completely screw over the buyer to make some fast cash. On top of that, after he blacklisted me he modified the auction to say 'crashed due to inexperienced rider'. He had no idea who I was or who had been riding the bike. My dad had 30 years experience on bikes. So he was just trying to rub it in that I couldn't stop him from doing what he does.

So although I cant be sure it is the same guy, if it is then he sure as hell cant be trusted as far as I'm concerned. IF it is the same guy....

My two cents. Substantiated.

[Flip]

funnily enough, to get your 4711 for example, they take your test piece away, cut it in half an xray the cunt to check for a good weld - you simply cannot tell simply by looking at it.

On something like a headstock, you would need to do several parallel runs with a slight overlap, it would probably look like shit for sure - but by no means does that indicate a poor weld.

Why would you ever want to get anybody who has a NZS4711 ticket which is a structural steel welding qualification to weld an alumiminium casting is beyond me.

I have welded many new alumiminium fabrications onto old crank cases and have never had a problem. The guy I got to do my high strength welding worked for a company who made the aumiminium fuel road tankers, the stuff I did myself was not as tidy but I have never had any problems.