RZ/RD 250 L '84 - rebore & jetting info please.

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jools
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Joined: Mon Jul 16, 2012 4:35 pm

RZ/RD 250 L '84 - rebore & jetting info please.

Post by jools »

RZ/RD 250 L '84 model - Info needed.
I only have a manual for the 350 so I need to check a few things with you gurus…
(I've got an online parts manual, but no workshop manual for the 250).

My 250 needs a rebore and I'll be dropping in new + 0.50 Mitaka pistons.
What piston/bore clearance is correct for the rebore?
Ring end gaps?
(Any contacts for a reliable reborer in Melbourne?)

Main jets: PO had 180mj installed, I believe 155mj is standard but I'm not sure, any comments?
(This is a RZ/RD 250 L '84 model remember, not a 350).
(and is it worth going a step richer for the running in period?)

What's the idea behind that round clutch cover? It gives no access for clutch adjustment. Got a thick rubber pad inside it, what for?

Cheers
Jools
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