Had my first real breakdown. Guts...

[CB ARGH]

Struck some bad luck today!

On a ride heading to Kaitaia for the night via Dargaville. Was riding along and all of a sudden felt and heard a clunk, it felt like the trans or chain so threw in the clutch and pulled over. Oil pissing everywhere, all over the rear tyre and road.

The front sprocket bolt was sitting ontop of the chain guard, all torn up. Looks like damage to the trans or sump. Won't know for sure until I get it home and remove the fairings. And yes the sprocket had been torqued to what the manual said.

Insurance company doesnt want to hear about it. Fully insured however no cover for anything mechanical.

Looks like an expensive repair and a long time off the road.

Still, couldve been much worse if the rear wheel locked!

Here's a pic.

https://ibb.co/gvGAJv

[Moise]

Sorry to hear that. It's good that the rear wheel didn't lock though.

There is usually some kind of lock washer to prevent this from happening.

Sent from somewhere using Tapatalk

[Autech]

Glad you stayed on board mate, many haven't before you...

Did it have the crush washer on it?

[CB ARGH]

Yes everything was put on properly and I've done at least 15,000km since the change. Chain has always been cleaned and lubed properly every 500 odd km. Also has just got a new set of tyres 200km ago so the chain and rear wheel was aligned correctly by a Cycletreads mechanic.

[CB ARGH]

https://www.youtube.com/watch?v=xVEWRcJ2q6o

I've uploaded a video of it. Unfortunately there's no sound but you can see the bike shake just before I pull the clutch in and pull over.

[R650R]

Yes everything was put on properly and I've done at least 15,000km since the change. Chain has always been cleaned and lubed properly every 500 odd km. Also has just got a new set of tyres 200km ago so the chain and rear wheel was aligned correctly by a Cycletreads mechanic.

When my GSXR750 was still brand newish at 27,000km I had the grey code sensor for the speedo unthread itself from the output shaft by front sprocket. Being made of metal its prongs quickly cracked the sprocket cover case on which the sensor for the speedo was fitted. The sensor shifted slightly and gave false speed readings, slower than what it should for current revs. I thought F@#$%, clutch is slipping, so I nursed it back from atiamuri to HB with least amount fo horsepower and throttle use. Was repaired quickly once I knew what it was next day, was enough meat in other bolt to mount sensor in correct place.
Then it wa s asix month battle to claim a new cover under warranty which now sits as a trophy in the shed.

[Tigger79]

Struck some bad luck today!

On a ride heading to Kaitaia for the night via Dargaville. Was riding along and all of a sudden felt and heard a clunk, it felt like the trans or chain so threw in the clutch and pulled over. Oil pissing everywhere, all over the rear tyre and road.

The front sprocket bolt was sitting ontop of the chain guard, all torn up. Looks like damage to the trans or sump. Won't know for sure until I get it home and remove the fairings. And yes the sprocket had been torqued to what the manual said.

Insurance company doesnt want to hear about it. Fully insured however no cover for anything mechanical.

Looks like an expensive repair and a long time off the road.

Still, couldve been much worse if the rear wheel locked!

Here's a pic.

https://ibb.co/gvGAJv

Bad luck. Good to hear that you're unhurt.

[CB ARGH]

https://ibb.co/hwRmaa

So finally got the bike back. Looks like the front sprocket nut has come loose and wedged itself around the chain ripping at part of the engine.

Any idea where I'd get these parts to the engine?

[nzspokes]

Looks like the gearbox case is toasted. If its not a bolt off part then in all reality its new motor time.

And locktap the sprocket bolt next time.

[R650R]

https://ibb.co/hwRmaa

So finally got the bike back. Looks like the front sprocket nut has come loose and wedged itself around the chain ripping at part of the engine.

Any idea where I'd get these parts to the engine?

Step one -SupercheapAuto, $17.99 JB Weld epoxy resin
Step two- sell bike on trademe

[HenryDorsetCase]

Bad luck.

To fix it properly it looks like a motor out, split the cases down to the castings, then either source a new casting or repair the one you have. Presumably it can be done but I have no idea by whom or how.

The JB Weld solution probably will not work in the presence of oil - at least it never has for me. I did have some success with it many years ago on a stator cover on a CB750: but I took it off the bike and cleaned it of oil residue then put the JBW on it.... then found another stator cover.

Good luck with it.

[Askor]

That seems to be THE place for R6's to crack/break when something fucky happens with the chain. I'd say it'd be repairable by a skilled TIGger if you still have the broken off bit, but that's complete engine strip-down territory. Alternatively, brakeclean the area really well, and JB Weld the broken off bit back on. It should be fine as long as there's NO oil on/in the break's surface... :crazy:

[CB ARGH]

Thanks for your input guys. I've taken the engine out of the bike and it appears to be the entire trans section that is effected. Where the damage is it isn't just a simple plate that can bolt off it's the entire trans section. I'll take it to a mechanic to get it looked at but looks like for the effort and time involved it may just be easier to purchase a complete engine and salvage the current one.

[R650R]

Bad luck.

To fix it properly it looks like a motor out, split the cases down to the castings, then either source a new casting or repair the one you have. Presumably it can be done but I have no idea by whom or how.

The JB Weld solution probably will not work in the presence of oil - at least it never has for me. I did have some success with it many years ago on a stator cover on a CB750: but I took it off the bike and cleaned it of oil residue then put the JBW on it.... then found another stator cover.

Good luck with it.

I was being funny. Yes JB is plausible as a get you home form an adventure fix but would never try sell bike like that....

[Moise]

Yes everything was put on properly and I've done at least 15,000km since the change. Chain has always been cleaned and lubed properly every 500 odd km. Also has just got a new set of tyres 200km ago so the chain and rear wheel was aligned correctly by a Cycletreads mechanic.

Really sorry to hear about the damage.

The lock washer normally has a couple of tabs that you bend against a flat on the nut. If that's done well, ususually with a hammer and drift, then the nut can't come off even if it loosens. I've had this happen - bent the tabs back and the nut was finger tight.

Seems a bit of a coincidence that this happened 200 km after a new tyre was fitted.

Sent from somewhere using Tapatalk

[jellywrestler]

Seems a bit of a coincidence that this happened 200 km after a new tyre was fitted.

Sent from somewhere using Tapatalk

why would anyone touch the front sprocket when doing a tyre change?

[Moise]

why would anyone touch the front sprocket when doing a tyre change?
They wouldn't, but they adjusted the chain and aligned the back wheel. Even without the nut, the front sprocket will often stay on the countershaft as the pull from the chain will keep it in line. But if the chain was loose or the rear sprocket not aligned, that may have been enough to finally cause the failure.

Not saying it was their fault, just coincidence.

But there is no need to disturb the chain adjusters on most bikes when removing the rear wheel.

[CB ARGH]

I thought I'd post an update. I've purchased an engine off ebay and it's coming all the way from Canada. Cost including shipping $1900 - thats before the import duty tax.

The engine is clean with only 25,000kms on it, looks like it'll work a treat. I've just purchased it this morning so I'd expect it to arrive in 1-2 months.

I've got to add - dam it sucks not being able to go for a ride, it's like a prison sentence. Every bike I see riding past brings a tear to the eye.

Let this be an expensive lesson - LOCKTITE your bloody front sprocket nut!


Now to decide where my first roadtrip will be...

[Akzle]

thread lock is for pussies. real mean tie wire.

[SVboy]

Hope it is a trouble free transaction.

[Grumph]

So do I...But i have to warn you, everything I've ever had from Canada has taken twice as long as estimated.

A Canadian who reckoned he knew told me that it was because they accumulated stuff for this end of the world till they had a full container - then sent it.
It is at least true that deliveries are erratic.

[HenryDorsetCase]

n - LOCKTITE your bloody front sprocket nut!

..

I guess. Most that i have seen have a mechanical retention as well. tab washer usually and look up the proper torque in your manual.

[Autech]

So do I...But i have to warn you, everything I've ever had from Canada has taken twice as long as estimated.

A Canadian who reckoned he knew told me that it was because they accumulated stuff for this end of the world till they had a full container - then sent it.
It is at least true that deliveries are erratic.

Yeah my wife's family sends stuff over often and it can be anyone's guess how long it will take


Sent from my iPhone using Tapatalk

[R650R]

So do I...But i have to warn you, everything I've ever had from Canada has taken twice as long as estimated.

A Canadian who reckoned he knew told me that it was because they accumulated stuff for this end of the world till they had a full container - then sent it.
It is at least true that deliveries are erratic.

Like anything in the freight industry you get what you pay for. Same thing happens here and UK also. Had my partner send me my Shoei from UK by economy surface post, tokk so many months id thought htye lost it.
And if those bumbling fools on Ice road trucking are anything to go by then even when it is in a hurry prob takes ages lol.
I ping the hell out of anything overseas i buy with online tracki9ng just out of curiosity, they sure a shell have some strange freight hub routing over there....

Just pray your Canadian freight aint travelling the Coquihalla Highway .....


https://www.youtube.com/watch?v=S82Ed2XJXB8

[CB ARGH]

Got a call earlier this evening, the engine has touched down in NZ. Turns out the guy sent it via air freight rather than the seas. Will be heading to Auck airport to sort out the customs stuff.

Pretty quick getting here!

Edit: I have picked up the engine. Another step closer to being back in the wind!

[tigertim20]

nice. Hopefuly it bolts in and runs without any issues

[CB ARGH]

So finally two months later I'm back on the road!

Thanks for all your help guys and gals!

[Scubbo]

looks like a great ride!

[Honest Andy]

Good pictures, looks like you are bowing to the ancestors in grateful thanks... :not:
Make sure your sprocket is nicely threadlocked on and go pick up the Auckland Tagorama :2thumbsup

[Honest Andy]

So what did the mech do to it?

[EJK]

So finally two months later I'm back on the road!

Thanks for all your help guys and gals!

Congrats and nice job!

Now do a celebratory burnout! ...without your dad splashing water on the tyre this time? :bleh:

[CB ARGH]

So what did the mech do to it?

All he did was a carby sync, that's all it was. He reckoned one of the carbs was closing before the other also.

EJK: No burnout for me mate i'm running Michelin PR4'S on the back!

[tigertim20]

nice work!..

[Honest Andy]

All he did was a carby sync, that's all it was. He reckoned one of the carbs was closing before the other also.

Ha! Good work, that's what you thought it was! You definately know a shit-load more about your bike now. Only a few more breakdowns and you'll know everything :2thumbsup