Generator cover buggered, what happens

[slyrob]

A product of my recent adventures was the destruction of what the parts list names as the generator cover. Seems I am looking at £90 unless I find one at a breakers, What fluids or oil etc might I have lost from here and how would I repair this?
Please help me I want my bike back!
Thanks Rob
Edit: should add it's not an r6 it's a thundercat
https://i878.photobucket.com/albums/ab349/slyrob/IMG_1681.jpg[/quote]
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Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[G]

Looks beyond sensible repair - keep an eye out on ebay and maybe have a look on r6messagenet if it's still going.

[slyrob]

I didn't mean repairing the cover I just wondered what's behind it and should it be filled with fluid? Does it need a new seal when replaced
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Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[MaybeGuy]

one of two things behind it.
one, cover comes off, just a flywheel.

the other is the stator plate and generator coils mounted to the plate.

it's more than likely the second one. oil behind the seal.
as long as you dont tear the gasket getting it off, should be fine to reuse with a bit of hylomar if needed.

easy enough to swap over
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Casper]

This

[slyrob]

[MaybeGuy]

i was thinking the same thing.
is it an FZR genesis?
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[slyrob]

Nope it's a thundercat although I nearly bought an fzr!
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Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[MaybeGuy]

well it would appear that the thundercat one seems identical to the FZR one (same engine?) so at least that narrows down the parts search

https://cdn.bikechatforums.com/files/fzr600_068_116.jpg
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Teflon-Mike]

This and lots of other questions are answered by the Haynes Manual.......

Looks like a TZR motor, be helpful to know what it is, rather than having to work it out from the photo.

Some bikes have a 'wet' generator, that runs in the engine oil. Some have inverted generators with the stator coils bolted to the inside of the cover. Your, I THINK is a conventional 'dry' generator, so the cover should be no-more than just a cover, keeping water and crud out of the gernerator.

So you shouldn't have to worry about any fluids leaking out. That's the good news.

Bad news is that generator covers are, as you have discovered, vulnerable when a bike goes down, therfore, they are one of the parts there tends to be more demand for than supply, hence expensive. True, people do scrap motors from siezing them or melting pistons, and sell off the bits, but theres still more people who want them than people flogging the bits.

So, you have four choices:
1: Pay the Yamaha main-stealer price for a new part
2: Pay an inflated price for a 2nd hand price from a breaker
3: hope to get lucky on e-blay
4: Bodge it!

In trials, its quite common for the mag covers to get badly mashed, and to be honest, I have seen worse than yours, filled up with gloop to keep the water out. Even seen as badly damaged covers, on classics where replacements are more difficult to procure, made good enough for a show bike with judiciouse cosmetic surgery with lumiweld.

Personally, for a better than average 'bodge' I'd go with araldite and aluminium filings. See here: [b]The 'Loaded' Epoxy Repair worked for me before in such instances.

Thats a BIT of good news, HOWEVER; running milimeters behind that mashed metal is the flywheel, which is a heavy chunk of metal, rotating at high speed, directly on the end of the crank, and wizzing around in close proximity to some big coils of wire.

Not unknown for a heft smack on teh side to push metal into the flywheel, and in severe cases actually bend the crank. Early 80's Kawasaki, inline four's were a bugger for it, as the angle of impact tended to be quite oblique and put more bending force on it, where a narrower single, HOPEFULLY will get smaked more end on.

But, risk that a smak on the flywheel, could have off-centred it, which may cause high speed vibration, that will wreck main bearings in a a hurry, or more likely, effect the generator and ignition.

So that lot needs checking out, and really the cover round the outside is probably the least of your worries.

Oh, yes there will be a seal in there, its on the end of teh crank-shaft, behind the rotor. Keeps the charge in teh crank case as the piston rises and falls pumping it through the transfers into the cylinder. Not likely, but possible it might have been damaged by impact, more likely it would fail if the end of the crank is running eccentric becouse its bent.
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Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[slyrob]

As mentioned above twice its a thundercat! a 1997 yzf600r. How would I tell if the if the flywheel has been knocked off centre?
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Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[Tristan.]

take the cover off and tern it over measuring the runout (if any)

The thundercat bottom end is common to many bikes, FZR600 4JH and 3HE FZR 400 3TJ but not 3EN1-2

[Teflon-Mike]

[Casper]

[slyrob]

Many thanks Matt And mike, no problem 1888! I should have made it more obvious! I just don't fancy paying £90 but they seem quite hard to get hold of
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Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[Casper]

try this bloke https://www.breakingpoint.co.uk/Yamaha.html

and this forum as a few cat owners here

https://www.therevcounter.com/forum.php

also was the fazer not the same?

[P.addy]

[MaybeGuy]

[P.addy]

I did edit my post

When i had a crashed FZR in the garden, took me a few weeks to find it, could only find the hardened casings for £100+

[N cee thirty]

iirc 00dom00 or whatever his name is on heres breaking his fazer for parts
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[Pete.]

If there's no oil inside there just slap soemthing over it to keep dirt and moisture out until you find a replacement. I'd cut the bottom off an old pot and fix it on there with RTV.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Casper]

https://edinburgh.gumtree.com/edinburgh/78/69308278.html

[Ariel Badger]

This will keep the muck out
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Bikers make great organ donors, get 115 on your licence today.

[Kickstart]

Hi

At £90 you are pretty close to the cost of a heavy duty aftermarket cover.

However surprised they are that much new. Last FZR end cover I bought (other side) was a lot less than that.

All the best

Keith
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