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Andy86 Started a new thread Yz250 1st gear issue help needed ?

5/24/2016 3:43am
Hi all, having a little problem with 1st gear on my Yz250 1987 model The engine has just been rebuilt completely new clutch, crank and 95% of the gearbox replaced If i try to select 1st from neutral it grinds when letting the clutch out the rear wheel locks up and the shifter lever locks up too, kicking the engine...
This forum thread has 5 replies.

Andy86 Added a reply to Yz250 1st gear issue help needed ?

5/24/2016 3:43am
Cheers bro the shift star is welded in place by the factory its a stupid design once the bearing wears out you have to replace the entire shift drum All 3 forks, the rods and the shift drum all got replaced for Nos items What confuses me is the fact that its an intermittent fault as explained in my first...

Andy86 Added a reply to So I'm buying a 86 yz250 need help

5/19/2016 12:46pm
These guys have a lot of parts still available along with a few other places i used https://www.fowlersparts.co.uk/browser/manufacturer/yamaha/bike/yz250/y… http://www.cmsnl.com/yamaha-yz250s-1986_model9213/partslist/ http://www.piccocentermotor.it/cerca?controller=search&orderby=position… And also my thread may be of some use to you other than that you will just have to keep an eye out on ebay But bear in mind a lot of parts from 82-87 are interchangable http://www.vitalmx.com/forums/Old-School-Moto,22/Yz250T-1987-restoratio…
Hi all as the title states i have a rather large haul of nos discontinued gearbox parts for sale on ebay I have parts for various bikes from the late 70's to early 80's Some parts i have multiples of the same part Yz80 1979-1980 various assorted gears (7 items total) Yz400 1977-1978 various gears and and 1 axle shaft...
This forum thread has 3 replies.

Andy86 Started a new thread Jetting help advice please

5/6/2016 12:41pm
As the title states looking for some jetting advice For my YZ250 1987 Fresh rebuild, entire engine new, no crank seal leak, used yammabond on case halves etc The bike runs really well apart from a fair amount of unburnt 2 stroke oil in the exhaust and bit of a weep from the silencer joint its not major but its...
This forum thread has 2 replies.

Andy86 Added a reply to Jetting help advice please

5/6/2016 12:41pm
Yes mate reeds are brand new boyesen's new reed cage fully rebuilt carb no fuel from overflows, correct float height Bikes been fully rebuilt from ground up no stones been left unturned Appreciate the advice its spot on, its just everything you mention has been checked already Even so thanks for the speedy reply
Hi all as the title states looking for some advice on the centre nut clutch adjuster for the outer pressure plate on my Yz250 its an 82 model bottom end with the 87 topend it has the shorter style Clutch acuator arm without the extra pivot tang at the bottom found on the later models If i don't tighten the...
This forum thread has 4 replies.
Also here is a link to another forum with someone having the same problem as me, i don't think it got resolved for them either Its same clutch arm used on the IT250 1981-1983 IT465 1981-1982 IT490 1983-1984 YZ250 1980-1984 YZ465 1980-1981 YZ490 1982-1984 Hopefully someone who has one of these bikes can shed some light on the problem Here...