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| mat1600 | | Thunderbird |  |  | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 20 May 2011 - 20:49 Post title : Bird jacking | | | Got me a bike jack. Can someone tell me the size of that piece of ply that needs to go on the jack. And .... does it just sit on the sump.
Had a go with a piece of half inch ply but it was bending a little so I guess three quarter will be fine , but what are the best dimensions for the timber. Any other jacking tips welcome. yeh yeh yeh ..... I can think of many smutty answers here so lets not be wasting valuable thread space here .
| My first natural instinct is to breathe. My second is to evade tax's.
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| zolti | | Thor | |  | | Reg. Date | : | 23/03/2010 | | Posts | : | 3,127 | | Location | : | newcastle , United Kingdom |
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| | Posted : 20 May 2011 - 22:15 Post title : Re: Bird jacking (Re: mat1600) | | |
mat1600 wrote:
Got me a bike jack. Can someone tell me the size of that piece of ply that needs to go on the jack. And .... does it just sit on the sump.
Had a go with a piece of half inch ply but it was bending a little so I guess three quarter will be fine , but what are the best dimensions for the timber. Any other jacking tips welcome. yeh yeh yeh ..... I can think of many smutty answers here so lets not be wasting valuable thread space here .
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with the bike that high you could walk underneath it matt without bending 
my timber is less than the distance between the pipes and about the length of the sump. when jacked its sitting only on the sump. my ply is about 12mm not sure why yours is bending unless its straddling. i have a flat top on the jack seems yours might be a frame type, from the pic it does seem more aft too. if its a frame then you will need a stronger ply. or straddle the frame with some of that steel you have lying about and put the thiner ply on that
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| DizzE | | Thor | |  | | Reg. Date | : | 12/07/2010 | | Posts | : | 3,141 | | Location | : | Sunnyvale, CA, United States |
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| | Posted : 21 May 2011 - 00:08 Post title : Re: Bird jacking (Re: zolti) | | | 6 1/2" x 14" piece of 3/4" plywood
Mine bends a little, but you can always screw on a cross piece under.
I've got pictures in the site album of this, also.
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| Linkdog | | Thor | |  | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,928 | | Location | : | Groveland, FL., United States |
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| | Posted : 21 May 2011 - 00:41 Post title : Re: Bird jacking (Re: DizzE) | | | 3/4 or 19 mm works great. the more plies the better, maybe you can find some Baltic Birch at a local cabinet shop. BTW nice title
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,928 | | Location | : | Groveland, FL., United States |
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| | Posted : 21 May 2011 - 00:43 Post title : Re: Bird jacking (Re: Linkdog) | | | Matt dont forget the safety stop!
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| Ted | | Chaac | |  | | Reg. Date | : | 14/06/2010 | | Posts | : | 551 | | Location | : | March, Cambs, United Kingdom |
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| | Posted : 21 May 2011 - 13:30 Post title : Re: Bird jacking (Re: Linkdog) | | | I cut an asymmetrical piece, that shares the load over the crankcase, cat and exhaust. I did plan on including packing pieces to accommodate the variable heights but it seems there's only a couple of mm difference. Not near bike at the mo, if you want pics can post later
| NASUWT retired, GP track marshal and Patriotic Rider
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| DizzE | | Thor | | | | Reg. Date | : | 12/07/2010 | | Posts | : | 3,141 | | Location | : | Sunnyvale, CA, United States |
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| | Posted : 21 May 2011 - 14:49 Post title : Re: Bird jacking (Re: Ted) | | | I'd like to see the picture, but I don't understand why you would both
- put big weight on the exhaust headers and the cat box
- and put up with milimeters of height diffs and a off centerline lift.
The cat is one thing, but the headers coulld be a real problem.
Maybe not, but why risk it? The right sized board fits so well.
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 21 May 2011 - 19:06 Post title : Re: Bird jacking (Re: Linkdog) | | |
Linkdog wrote:
Matt dont forget the safety stop! |
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? safety stop 
Thanks all for the sizes. 
| My first natural instinct is to breathe. My second is to evade tax's.
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| BlueNose | | Thor | |  | | Reg. Date | : | 29/09/2009 | | Posts | : | 2,478 | | Location | : | United Kingdom |
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| | Posted : 22 May 2011 - 06:44 Post title : Re: Bird jacking (Re: mat1600) | | | My plan is...wait until Mat has got it sorted and found the safety stop then go and knock on his door with the promise of beer and the pleasure of my company and use his. He is my very bestest mate after all (I'm sure he's happy about that).
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 23 May 2011 - 07:48 Post title : Re: Bird jacking (Re: BlueNose) | | |
BlueNose wrote:
My plan is...wait until Mat has got it sorted and found the safety stop then go and knock on his door with the promise of beer and the pleasure of my company and use his. He is my very bestest mate after all (I'm sure he's happy about that). |
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Beer  - the lifts yours.
| My first natural instinct is to breathe. My second is to evade tax's.
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| Birdy68 | | Thor | |  | | Reg. Date | : | 16/07/2009 | | Posts | : | 3,352 | | Location | : | Bad Zurzach, Aargau, Switzerland |
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| | Posted : 23 May 2011 - 07:55 Post title : Re: Bird jacking (Re: mat1600) | | | mat1600 wrote:
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You like jacking up dirty 'Birds don't cha?
... just look at the state of those wheels & TORs!!!
| Birdy68
-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
Leave the pork pies for now - get the sausage rolls while they're hot!
 -x-  -x- 
more info at Fuelly.com
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