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koba
7th March 2011, 18:54
Has anyone cut big bits off an alloy frame before?

Has anyone cut the front engine mounts off an NSR before?

I'm thinking about doing this at some stage, there is plenty to do before I get this far but I was pondering whether it is a good idea or not.

I would probably cut through the cast part of the front down bits that the NSR engine was once rubber mounted to.

I know some castings can release internal stresses when cut and crack but I'm not sure if I need to worry about that or not. Also I don't know what I will find inside so I may drill a few little holes to feel it out first.

Anybody have experience with this they would care to share?

Grumph
7th March 2011, 19:02
If the frame originally used the engine as a stressed member, you may finish up with something pretty limp...
A well known example was Tony Mcmurdo putting a Kawa twin into a VFR honda frame. Without the V4 bracing it, it wanted to walk around on turn in....he welded a full length reinforcement on top of the side rails which stiffened them up just enough.

Gigglebutton
7th March 2011, 19:08
I have welded up loads of ali frame part when cracked or after crashes with no problems. We have had no problems welding any ali on bikes but it does soften the higher tensile ali. If you anneal it before cutting it will lesson any chance of cracking.

koba
8th March 2011, 06:28
If the frame originally used the engine as a stressed member, you may finish up with something pretty limp...
A well known example was Tony Mcmurdo putting a Kawa twin into a VFR honda frame. Without the V4 bracing it, it wanted to walk around on turn in....he welded a full length reinforcement on top of the side rails which stiffened them up just enough.

That sounds scary...

The bits I'm cutting off are all good in that respect, while they may have had some contribution to overall stiffness they have been flapping in the breeze the whole time the thing has been a bucket and I don't notice any ill effect. The main Beams are nice and chunky.

Cheers for the warning.


I have welded up loads of ali frame part when cracked or after crashes with no problems. We have had no problems welding any ali on bikes but it does soften the higher tensile ali. If you anneal it before cutting it will lesson any chance of cracking.

Cheers, I will have a look into this...

Hawkeye
8th March 2011, 06:44
Had to read that title a second time.

I thought it said 'tits' - ah well - ho hum

Henk
8th March 2011, 16:37
That sounds scary...

The bits I'm cutting off are all good in that respect, while they may have had some contribution to overall stiffness they have been flapping in the breeze the whole time the thing has been a bucket and I don't notice any ill effect. The main Beams are nice and chunky.


Having read that I'd be breaking out the hacksaw, but then I'm a bit on the rough side when it comes to this sort of thing.

koba
8th March 2011, 18:26
Had to read that title a second time.

I thought it said 'tits' - ah well - ho hum

So did I for a moment and I bloody typed the thing!

:angry:Men!


Having read that I'd be breaking out the hacksaw, but then I'm a bit on the rough side when it comes to this sort of thing.

I would have too but have seen a sawn off bellhousing recently that didn't cope with it. I think I'm being a pussy tho and should just hack the feckers off.

Madness
8th March 2011, 18:44
Has anyone cut big bits off an alloy frame before?


Shervin did so rather famously. (http://www.kiwibiker.co.nz/forums/showthread.php/125752-Another-yankee-smacktard-rapes-his-bike?highlight=shervin)

:facepalm:

Sorry, as you were.

koba
8th March 2011, 18:56
Shervin did so rather famously. (http://www.kiwibiker.co.nz/forums/showthread.php/125752-Another-yankee-smacktard-rapes-his-bike?highlight=shervin)

:facepalm:

Sorry, as you were.

No, Don't be sorry! Thats Hilarious!

quallman1234
10th March 2011, 15:47
http://www.motorcyclenews.com/MCN/News/newsresults/General-news/2010/May/may2710-shervin-an-internet-motorcycle-celebrity-is-born/?id=124318

hmurphy
10th March 2011, 16:23
http://www.motorcyclenews.com/mcn/news/newsresults/general-news/2010/may/may2710-shervin-an-internet-motorcycle-celebrity-is-born/?id=124318

hahahahahahahahahahahaaaaa!!!!!!!!!

Check this out... it's his bike review of the ZX10R. He is either taking the piss (pretty sure he is) or has many screws loose (in which case, poor bugger). The second photo cracks me the hell up, parking in busy traffic hahaha.

koba
10th March 2011, 20:49
So Ram air is where its at?
I'll get right on it!

hmurphy
12th March 2011, 09:13
Oh... the link didn't work... Here it is though

http://www.motorcyclenews.com/MCN/News/newsresults/First-rides--tests/2010/May/may2810-Guest-road-test-Shervin-reviews-the-Kawasaki-ZX-10R-/

koba
12th March 2011, 18:23
I wish I had skills like that!

Henk
12th March 2011, 18:48
I wish I had skills like that!

Thought you did. Maybe I should find another tyre technician.

Mental Trousers
12th March 2011, 19:32
The bit that got me was


Shervin Rezaiy is a trained auto mechanic ....

:gob: :facepalm:

koba
12th March 2011, 22:20
Thought you did. Maybe I should find another tyre technician.

Nooo! you wouldn't would you?!?

My tyre technician skill are second only to people who know about tyres!

Aluminium frames are outside of my area of, ah fuck what am I talking about, I'll just hack the bits off anyway...

koba
12th March 2011, 22:22
The bit that got me was



:gob: :facepalm:

all part of the delusion?!



I hope.

Henk
13th March 2011, 07:40
Aluminium frames are outside of my area of, ah fuck what am I talking about, I'll just hack the bits off anyway...

That's the sort of thinking I like to hear.
Let me know if you're coming to Tokoroa, I'll lay in some extra duct tape and zip ties.

TZ350
13th March 2011, 10:10
Aluminium frames are outside of my area of, ah fuck what am I talking about, I'll just hack the bits off anyway...

This is one of the great things I love about Buckets, you don't have to be an expert before trying to do something. Anyone can have a great idea and try it out, its learn as you go.

koba
13th March 2011, 20:05
This is one of the great things I love about Buckets, you don't have to be an expert before trying to do something. Anyone can have a great idea and try it out, its learn as you go.

Yup! and if it does turn out to be a 'lesson' (we all have those) I have another frame on standby.

koba
13th March 2011, 20:07
That's the sort of thinking I like to hear.
Let me know if you're coming to Tokoroa, I'll lay in some extra duct tape and zip ties.

Duct tape and zip ties!?! shit, we could just about make another bucket from that!