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Post Info TOPIC: 350cc Big Bore Kit for the TTR250 - updates and gossip!


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350cc Big Bore Kit for the TTR250 - updates and gossip!
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Yup! Thanks!

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I'm having a hard time coming to terms with selling the TTR and I would love to buy this kit. If i get the engine casings I have machined down, would anyone here be willing to do the conversion for me? Obviously I will happily pay for the service! Due to living in a van I don't have a workshop or a garage or anywhere where I could do the work at the moment.

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My ttr350 runs!!! No.3 I hope!

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Daniel Lee



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Well done Daniel!  



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TTRfan wrote:

Well done Daniel!  


 good work  have you worked out your jetting, mine and Simon's were completely different I think confuse



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I've finally got my finances sorted and have emailed my request through.....

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Cheers guys,

I used 142 50 middle position, 1.8 turns out. I pressed the button for a second with the choke out and it instantly started. I only ran it for like 3 seconds as it was late(ish) so i'll see how it is at the weekend:) cheers for all your help!



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Daniel Lee



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Hi Steve, every time that I try to reply to your email, it bounces back saying that your inbox is full....

Anyway. I did receive your email this morning. Keep me posted, let me know when you need some money, and how much.
I'm sure I'll need a kit for my sons bike as well at some stage, but I'll deal with mine first (unless there's a discount in buying two at once???)
Cheers,
Mark

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yes I have been having email problems, all sorted now I thinkconfuse

Will keep in touch and sorry no discount, we only just make enough money to make the 350 projects viable. 

Steve



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3 years my TTR has sat dusty in the shed....and tonight I find this thread.



Consider my interested piqued.

Very piqued

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Well considering it's taken about 3 years to get to this stage of having 3 running engines and a new batch of kits close to ready, you must have just missed the first rumours

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dlee22, how is your bike? I know you were having a bunch of problems. I'll be swapping in the 350 early next year. Just wanted to see if you had found out what was causing some of your problems.

Cheers,
Michael

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Hi Michael,

All good now thanks! Sorted the inlet valves now and I think it's better thankfully!

 

That'll be great when you are done! The 350 feels stronger but I haven't bedded her in yet so haven't given her much yet.

 



-- Edited by dlee22 on Monday 25th of November 2019 11:38:33 PM

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Daniel Lee



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Great! So, that's three working 350s! Can't wait to get mine.

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New batch of barrels should be in the chuck jaws by tomorrow afternoon. Fingers crossed...

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yeah ha



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Awesome!!!!!  I am patiently waiting...!



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How many in this batch?  

 

I've started stripping my TTR down in anticipation....



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OK. I will admit it. I'm impatiently waiting!

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Forgorin wrote:

OK. I will admit it. I'm impatiently waiting!


 You and me both, but I'm powerless to do anything else!



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HEHE No worries. I understand things can sometimes go at their own pace.

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Everyone is on a wind down for Christmas now as wellno



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Ah, right. Kind of forgot things stop at the end of the year. Oh well. looking forward the new year!! Also, Steve, how do you take payments? Pay[al?

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No no, he is machining as I type. Just he has a long queue of barrel jobs and we're one of many. Mostly 2 smoke barrels for classic bikes, and the fact that he is so busy is recommendation, but no consolation.

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I'm so keen to receive one of these kits.... I just hope that there's enough being built that I can actually get my hands on one. It'd be a good feeling having the first in Australia. (Any other Aussies ordering?) If there is enough being built to meet the demand, I'd actually like to buy 2 kits - one for my sons bike as well.

I should have my cases split by the end of the weekend.. And I've started work on my bike build. This is going to be something unique. One of the main differences (from the Oz models at least) is that due to me spending a lot of time in the desert (regularly riding in temperatures 30c to 40c ) I'll be adding an oil cooler; head stem mounted from XR400; I just have to figure out the fittings for the casings (is there any aftermarket available? so far I've only found an occasional Raid cooler second hand.) I'm sure that I've seen a link somewhere in the forums.

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There are a few threads that might be helpful - just search on "oil cooler" wink



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I've had a read through the threads. The hard part is finding the actual parts that I'll need- although one of the threads does mention the size of the banjo bolts etc, so I might have to go for custom build.

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You need two M12 8mm hose 90 degree banjos like these, to go neatly round the side of the engine. And two M12 x 1.25 banjo bolts rather than the 1.5mm thread ones supplied.

www.ebay.co.uk/i/392580300017

A length of 8mm id oil cooler hose.

Whatever fittings you need to connect to the XR pipes. You could probably use original xr flexy hoses and carefully shave off the crimp to separate hose from union and fit your own hose with a hose clamp.

And don't forget the bolt to block off the oilway in the engine side cover (dimensions available in the oil cooler information thread) M12x1.25, 25mm long. Easier to find a cap head/allen head bolt with that thread. (Make sure there is clearance for the head in the engine - they're a bit taller than hex bolts, but you can shave some off)

Easy



-- Edited by mossproof on Saturday 14th of December 2019 09:44:39 AM

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Thanks for that link... even searching ebay worldwide, it doesn't show over here.

The rest will be fairly easy to set up- I'm currently mocking it up on a mates old frame that had been damaged.

Cases were split today. Internals actually look pretty good; except for the selector forks, which are really the only parts showing any wear. I'll get to remove the bearings later.... most likely won't be next week as we are expecting temperatures in the very high 40c possibly low 50c range.

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Motor stripped down. Banjos & bolts arrived today from the UK.

Now I have to pack the whole lot up until we move house...

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Been quiet here lately. Any word on how that machinist going with his long queue? (Yeah, I'm a little keen)

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Should be Friday afternoon ready for collection. Praying there're no more holdups. Fingers, toes etc all crossed!

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Ye ha well done Simonsmile



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New batch now back from the machine shop. Will get them ready for dispatch ASAP. Standby everyone. Yeeha!

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