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Old 17-03-2007, 02:20 PM
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L33 BYT
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Default Motor Bike Mechanics or Moto x'er. Question.

Rebuilding my YZ 250 lump.

How on earth do you split the magneto of the crank is it Tapered?? If so what type of puller do you use to get the fooker off??

Also how do you split the Conrod from the crank??

Yamaha YZ250 1985

Please help////
Old 17-03-2007, 02:24 PM
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Roosie
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u need a speacial puller that just splits it its hard to descibe but its only on a magnet but it is ver hard to get off without a magneto puller
Old 17-03-2007, 02:25 PM
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Old 17-03-2007, 02:27 PM
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Stu, Where can I get one now???
Old 17-03-2007, 02:29 PM
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Roosie
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bavins in diss maybe bowers or equire in bury
Old 17-03-2007, 03:22 PM
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rsjay
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Crank will have to be put in a special jig mate to get true, best to pay a bike shop to do that as it dont cost much and need special tools, can buy complete cranks from wiseco.
Old 17-03-2007, 08:13 PM
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tabetha
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B E RANDALL at HEPWORTH, near DISS are worth a tinkle, they do all my car stuff and are ace, awkward to find though so PM me if you want directions, 01359 251888 is their number if it is any help.
Speak to BARRY or BRIAN.
tabetha
p s also have engine dyno!!

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Old 17-03-2007, 08:17 PM
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L33 BYT
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Well I am outstanding two things. One is getting the Magneto off the crank. The other is getting the Conrod and Main bearing changed. I really wanted this done asap rather than having to wait for tools or send stuff off. Apparently there is a chap in cambridge somewhere who knows his onions. So i'll have a hunt on Monday
Old 17-03-2007, 08:23 PM
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900ss
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Imo pay to get it done properly m8
Having a crank built requires pukka tools n someone who knows what they are doing!
To much d.I.y could end up costing you dear.
Old 17-03-2007, 08:26 PM
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Originally Posted by 900ss
Imo pay to get it done properly m8
Having a crank built requires pukka tools n someone who knows what they are doing!
To much d.I.y could end up costing you dear.
Well considering my Nuts would be Inches away I think thats sound advise.
Old 17-03-2007, 08:36 PM
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Roosie
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dont split the crank yourself thats a pros job
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