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Post Info TOPIC: Prettifying a TTR 250


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Prettifying a TTR 250
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Hi all. I wil be posting my progress on my bike in this thread. Feel free to comment and guide me during this process. I'm not promising daily updates, I wil try though. To see were it all started, check out link below. 

http://ttr250.activeboard.com/t63655977/newbie-from-south-africa/

 

Update number 1:

I've paid a visit to our local yamaha dealer, gave him some cash in exhange for some parts. ZAR2583 for the following parts. 

Oil filter
Outlet valves.
Valve stem seals
Top end gasket set. (O-ring etc...)
Timing chain
Spark plug

In the meantime while I wait for the parts to arrive, I've started cleaning muck and dirt from the engine. 

 

I also found that the magnet in pick up was slightly broken. Didn't order that part disbelief

20170617_184111.jpg20170617_180902.jpg20170617_185550.jpg

 



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Pretifying a TTR 250
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Sorry for landscape fotos, posting from my clever phone. Just to let you all know, I bought the bike as fixer upper, already spend almost more on the bike than what I paid for it. Have a lekka fathers day you all!

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Update 2

Stil waiting on the parts. Nice guy at yamaha said I should have it by Wednesday.

Starting to prep for the cam chain replacemen, opened up the side cover only to reveal a nasty surprise. Can anyone tel me what the below muck is? It feels like stone chips, how could that have gotten into the motor? And the black pieces are bits of plastic? Everything stil looks fine inside the motor including the cam guides.

20170619_191414.jpg20170619_191427.jpg



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20170619_192447.jpgDoes this look normal???? Please tel me it wil all be ok?cry 



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looks like cam chain slippers to me

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by the way order your parts from totally ttr s never mind a yamaha dealer when you want advise they cant be bothered but steve or brian will be helpfull just my thoughts anyway john

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If the black strips are hard rubber then Johnny could be right - the side guides off a slipper. Have you had them both out to check? Perhaps post some photos of them so that we can compare with good examples?

The wear marks on the crankcase seem to show that some sideways movement on the cam chain has allowed it to rub against it.

Are the metal bits aluminium or steel (magnetic)?

I think it may become clearer when you get further into the strip down.

Brian

PS It will all be OK wink



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JOHNYBOY wrote:

by the way order your parts from totally ttr s never mind a yamaha dealer when you want advise they cant be bothered but steve or brian will be helpfull just my thoughts anyway john


 I wish I could, but shipping and customs clearance to South Africa is a nightmare. Might end up paying double the part`s price. 

 



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On closer inspection, i found that it was indeed the chain slipper`s side guides that came off.

Wil now replace that as well.
Im just worried, why did all this stuff happen? Dont want to replce all the parts, but i dont have the root cause of failure?? And I spoke to the previous owner of the bike this morning, and he told me he had the Camchain and valves replaced about 6months ago. Told him that he was taken for a ride,and i showed him that all the parts in this engine is old. It was a buddy of a buddy that helped him out. Ya sure..... I smell B.S.


20170620_065832.jpg20170620_065848.jpg



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TTRfan wrote:

If the black strips are hard rubber then Johnny could be right - the side guides off a slipper. Have you had them both out to check? Perhaps post some photos of them so that we can compare with good examples?

The wear marks on the crankcase seem to show that some sideways movement on the cam chain has allowed it to rub against it.

Are the metal bits aluminium or steel (magnetic)?

I think it may become clearer when you get further into the strip down.

Brian

PS It will all be OK wink


 

I found this pic on one of your olders posts, 

Looking where the red arrow is pointing, is that a Lip or a edge that the Chain Slipper should push against? Cant really see, and my casing is worn, so im not sure if i should have it or not? 

 

 

Timing_chain_fitting9.jpg



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Not sure what the earlier photo showed but there isn't any sort of raised lip on the casting I just looked at. See photo below.

I can't think why the slippers should have been damaged in that way unless there was more end float on the camshafts than there should be.

Did the cams and cam caps look OK - does it look as if either or both of the camshaft sprockets might have worked loose at some stage?

Brian

PS Was the metal swarf magnetic?

BrianTiming chain crankcase.jpg

 



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Just got some bad news from the dealer. Lead time for a new slider is 6 weeks.

How soon can total ttr supply one to south Africa? And price? Should I order via their website?



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Totally TTRs can also supply good used parts.

Front slider here:  https://totallyttrs.com/epages/699105d9-e4cc-4b32-b236-84e72cd67f84.sf/en_GB/?ObjectPath=/Shops/699105d9-e4cc-4b32-b236-84e72cd67f84/Products/TTR-0525

Rear slider here:  https://totallyttrs.com/epages/699105d9-e4cc-4b32-b236-84e72cd67f84.sf/en_GB/?ObjectPath=/Shops/699105d9-e4cc-4b32-b236-84e72cd67f84/Products/TTR-0524

Steve can normally get genuine Yamaha parts in very quickly but only if the Yam dealer has them in stock.

Regarding shipping time, the UK Royal Mail service will usually get Airmail parcels on outgoing flights within a day or so.

I found in the past that the slowest part of the delivery is in the receiving country.

It depends on good is the SA PO at getting stuff to you normally as that would probably determine the total shipping time.

Brian



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TTRfan wrote:

Not sure what the earlier photo showed but there isn't any sort of raised lip on the casting I just looked at. See photo below.

I can't think why the slippers should have been damaged in that way unless there was more end float on the camshafts than there should be.

Did the cams and cam caps look OK - does it look as if either or both of the camshaft sprockets might have worked loose at some stage?

Brian

PS Was the metal swarf magnetic?

Brian

 


 It just looked on the first picture that there is a lip, Might just be the angle or oil on my glasses.  Im just relieved that there shouldnt be a lip.  Cam caps, NO, the exhaust side is NOT OK, wil post a picture later today, dont have one with me now. Looks like it was mutilated and patches up with with some resin kind of goo. 

Cam gears 100%

Regarding the swarf, no, it wasnt magnetic. so i can rule out worn crank or bearing right? 

The oil filter collected most of the swarf. 

20170615_192151.jpg



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Swarf must be ally then, from the damage to the crank case, which was caused by the sliders having no edge. I would imagine this has been caused by a very worn cam chain and maybe the cam chain tensioner not working properly, thus letting the cam chain flap about.

I have been warned not to post anything to South Africa, that does not go by UPS and such like. As the post system out there is a bit chaotic. I do post to customers out there, using the courier and they have always arrivedsmile

Steve



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20170620_181945.jpgYou are right steve, the SA post office is a no go. I've placed the slider in my basket on the website, wil place the order in the next day or day two, just checking ifI might need some more parts.

Wr can start of with the exhaust cam cap as well. Do you perhaps have a spare one?

Don't know what these okes thought



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Cam caps are not available to buy new and rare as hens teeth second hand.

I do not have anycry

Best post up on the wanted part of this forum



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Guess one one is the new chain? I'll give you a hint.  It's not the left one. 

20170620_202207.jpg



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pull the right one check the length also side movement

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ooooooooo noooooooo what happend my bike did that but i got the drain fixed and always use the stock filter fidget with the oil galleys a bit

dude you always gotta run clean oil in these bikes i change mine every 300 miles or 600 if shes gettin good in

10w40 luchas pro motocross oil and im thinkin about gettin a oil cooler idk if they even work tho i am going to exaust wrap the header

i run 103 octane in mine and never has any engine problems and that timing chain has to be tightbleh and the cam caps torqe them to 7.5 ft lbs 

lash should run .35 at .000 mine starts first tap of the starter and idles perfect needs a new throttle cable its done wore out and i will have recent great ideas for this bike soon

i have a great look for this bike and a motocross setup where the seat is up to my abs and it has weight reduction need to get rid of that pipe lolevileye have ideas of putting a shorty baffle on it

i have straight piped my bike and im building a custom muffler for it

i will have updates within 5 days it looks sick ive found a great lowered hard tail desighn for this bike

i painted the frame flat black it has the shocks flouresent yellow im going to paint the hubs and rims flat black and spokes that yellow it looks sick

still blue plastics and the lowered shock and hardtail looks insane still utilizing all mounts and quick easy ilistration  were talking lower than a harley

and its great for the street side and the extreme dropped shock will be great for raid and street low tuck low profile street moster and ready to dive off the road now i have it lifted so much 

the sag i set at  '1  ''  1/2 its as high as a 450

and the suspension is highly tuned all  stock too this is the best stock suspension ever hydraulic sucks id way rather have airbiggrinbiggrinbiggrinbiggrin



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Please never stop posting.... I so look foward to reading your posts....

 

 

 

 

..



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20170620_170142.jpgHey Guys

Its the weekend, Got most of my parts and im ready to rock.

Still haven't ordered the Cam Chain Slider, as I Might be getting one from a buddy of a buddies nephew, wil be going there to check out the condition!

Plans for the weekend is.

NEw valve stem seals
Lap valves (2 new outlet valves)
FitBarrel, head and new cam Chain.
Fit motor back into frame,
Clean the hell out the bike, Concentrate on Front END, Shocks etc... )

If i cannot find a Cam Chain by the weekend, i will still carry on with the above, but will keep the covers open until such time i can fit one.

New parts..



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