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XV920 cafe bastard
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203 Posts
Discussion Starter #1
Here it is! After some years away from this board i'm starting my firsy winter build to bring me motivation.

Here a kickoff picture as it was last sunday when i decided to get into the competition



ong story short, i bought it in may 2019 with a bad 2nd gear hoping to swap the engine it had for the suposedly working spare one it came with. It work but had real low compression and leak oil everywhere... i put 10 miles on it..
That day i decide to build ut the way i wanted it from day one.




It came with zx12r wheels swingarm and forks already installed. I dreamed about installing vfr sssa and wheels on both ends and repinting it.

The bike sat with no engine as i was looking for a donor gsxr or b12 to give its heart. Then early october this came up in a facebook wanted thread.



In other place i would have clean and run it as is but here a gsxr cost 1600$ a year in registration... so i got it for cheap..
7/11 with the desired sssa and 8 spoke rear.. with a(i think) yoshimura header and muffler. I test drive it and even with low psi on 2 cyl (will have to check valves and redo comp test) it goes quick.
Fast forward to last week, bith bikes were striped and then, today i did a quick mockup.



The engine is quickly put in with only the rear lower engine bolt, slingshot 750 front and its vfr wheel. The front will b installed to provided a low cost speedometer optio from the gsxr as i did not have one with the zx12 front.
Installation of the vfr rear will wait until the engine and body works are modified to fit as i can ride on tbe zx1w rear this summer if i dont have enough time.

Enough words for now.

So the to-do list:
Make a running bike.
Position engine
Make engine mounts.
Adapt bodywork (trim or move tank and fairing)
Move fuel valve.
Adapt exhaust
Redo compression test and fix if needed.
Fix engine oil leak.
Rewire the bike

If there is time:
Make a clean bike.
Repair cracked fairings.
Recover seat
Repaint the body oem or not.
Install sssa.

Now: go to work as family and jobs dont make for lots of wrench time
 

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XV920 cafe bastard
Joined
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203 Posts
Discussion Starter #2
With christmass coming i did not have alot of time for the bike.. i mainly checked clearance and plan chassis mods.
Basicly, the rear lower mount need to move outward to center the engine.
The tank need to come up 1/2 an inch so the side panel may need to be extand to match. Fuel valve sit in the new carb location so i'll have to come with a plan.
The front fairing will need to be moved up the same but since it was touching the wheel on big bumps it will be wellcome.

So step 1 for the xmass holiday is to have all mounts tacked in their place and the zx12 swingarm back in to check chain alligment and exhaust routing.
 

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XV920 cafe bastard
Joined
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203 Posts
Discussion Starter #3
Been really busy with life and works. I install the engine in frame with temporary mount, they are going to the laser cut this week !
Figure out exhaust fairing oilcooler etc..
 

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XV920 cafe bastard
Joined
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203 Posts
Discussion Starter #5
The rear mount is 2 part as per the original so iteave space to remove the engine.
I will weld it to the cross brace/shock mount tube instead of a long bolt with spacers as commonly saw because i feel it will be stiffer. It will be like the slingshot.

The 2 next big concern is the oil cooler and the tank/petcock clearance.

I focus on mounting tbe engine part before i do the rear sets and ergo things.
Anyone have experience on chinese oilcooler? I need one that is 14" wide to clear the lower part of the fairing and the 1127 curved one is 17"..
I found these:
Width is good but 9 row.. will it support my 1127?
I saw a 15 row version but height may be a problem..


https://www.ebay.com/itm/Universal-9-Row-An10-Engine-Transmission-Oil-Cooler-Filter-Relocation-Kit-Black/372859126654?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225118%26meid%3Dd2374199662c4fa78a79c31900077509%26pid%3D100678%26rk%3D1%26rkt%3D15%26mehot%3Dnone%26sd%3D372859126654%26itm%3D372859126654%26pmt%3D1%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100678.m3607&_trkparms=pageci%3A328ed32a-4620-11ea-8de3-74dbd180426d%7Cparentrq%3A088db2451700a4d0ef982906ffedf996%7Ciid%3A1
 
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