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Old 11-02-2010, 07:07 PM   #76
oc_nightmare OP
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Location: Leiria, Portugal
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I think i found the answer to the power issue


found a pic of the side of a XT/TT600, cut the engine and carefully placed it on the SR312 photo and well... it looks like the mounts are pretty much alike (if not the same). How hard can it be?

the Dual Sport SR600 project will start soon
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Old 11-02-2010, 08:39 PM   #77
crawler07
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Thats a cool bike! You have done some worthy mods for sure!I like your tool for removing the rocker arm pivots, I always used a slide hammer and a bolt that fit the end ,but what ever it takes! Cant wait to see whats next,
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Old 11-04-2010, 02:18 AM   #78
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You've cut the top off of the engine - the cam housing projects a lot further up and will stop you from mounting the engine. Besides, I would not recommend that you put a 600cc engine into a very sedate 250cc frame.

I believe a cheap way to get a bit more power would be to advance the ignition a few degrees more. This is easily doable if its points, otherwise you'd need to go aftermarket.

A *real* solution to the power problem is to simply get a more powerful bike.

- boingk
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Old 11-04-2010, 08:42 PM   #79
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Oh well, i guess youre right, but on the other hand... could one make a XT600 look like a CL or like a Scrambler? Has someone done anything like that?
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Old 11-21-2010, 07:39 PM   #80
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I guess, the engine is going to stay as it is now as im thinking on buying a road bike and keep this one as a scrambler. Today i introduced the wet mud to the SR312...

Carefull!


Now i see why the trail bikes have high mudguards, it is not cool at all to be on the sticky stuff with a locked front wheel!


Each step i did, there were arround 2 tons of clay in each of my boots!


after a lot of sweat and almost as a last attempt, i finally got out of the sticky stuff with the locked front wheel


On the last photo my hands were shivering because i was pretty much on my resistance limit


To add to that, soon after it started to rain, however the feeling that i was able to get out of there all by myself put a grin in my face for the rest of the day
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Old 12-29-2010, 05:25 PM   #81
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Quote:
Originally Posted by boingk View Post
You've cut the top off of the engine - the cam housing projects a lot further up and will stop you from mounting the engine. Besides, I would not recommend that you put a 600cc engine into a very sedate 250cc frame.

I believe a cheap way to get a bit more power would be to advance the ignition a few degrees more. This is easily doable if its points, otherwise you'd need to go aftermarket.

A *real* solution to the power problem is to simply get a more powerful bike.

- boingk
I guess it really is happening, im negociating a XT600Z engine for it... well, i'm crazy, but i promise that the frame is going to be veery reinforced to be able to cope with the 600cc engine and the suspension is going to be upgraded aswell. In order to keep my Zephyr 750 full stock, i have to direct my crazyness to the SR

More updates soon
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Old 12-31-2010, 07:07 AM   #82
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Last ride of the year











I was suprised to see how deep the bike could go without dying, even without airbox

Happy new year, guys
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Old 12-31-2010, 12:04 PM   #83
DCopp
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awesome thread!
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Old 01-09-2011, 06:02 PM   #84
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Just picked this baby up
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Old 01-13-2011, 07:17 PM   #85
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Today:





Had to go to work and couldnt do any real measuring but the engine mounts look very similar
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Old 01-14-2011, 10:22 AM   #86
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Bit bigger than the stock one but i think it fits
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Old 01-14-2011, 10:34 AM   #87
Brunow - 007
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Good luck with the brake's
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Old 01-15-2011, 04:24 PM   #88
vander
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Very nice bike. I have been dreaming with the SR250 for some time with the purpose of building a scrambler.

I really like your bike!

You could try with longer suspension on the rear. Watch this from the spanish SR forum.
http://foroyamahasr.foroactivo.net/t...ambler-rodando

The shocks are made in Barcelona by BETOR.
http://betorspain.com/osc/index.php?...sort=2a&page=3


My idea was to make a replica (not exactly but inspired by) of the Minsk 125, so popular in Vietnam.
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Old 01-16-2011, 10:13 AM   #89
Highside>Lowside
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Quote:
Originally Posted by oc_nightmare View Post
Bit bigger than the stock one but i think it fits
Keep in mind that the engine you are swapping in has much more power than the chassis was designed to handle.











Better use two bungees.
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Old 01-16-2011, 12:06 PM   #90
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If you do manage to cram that 600 engine in there, have you given any thought to where you'll put the external oil tank? What about the dual-carbs and air box assembly?
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