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Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 5:24 pm
by drunkmunkey6969
I'd double check on that one before ordering, I could be wrong but I don't think that is the higher spec one with shimmed big end.
Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 6:51 pm
by Andy Pickering
So I'm at risk of bending my conrod running this crank with the Avanti on or is it just not fit for purpose on the rb?
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Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 8:26 pm
by Muppet
Andy Pickering wrote:So I'm at risk of bending my conrod running this crank with the Avanti on or is it just not fit for purpose on the rb?
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some say there are better choices for the more powerful motor,
muppet,
Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 8:41 pm
by Andy Pickering
Up grade then to Jap rod and silver caged bearing with the strong indian webs should bring me up to scratch
Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 8:55 pm
by Toddy
Andy Pickering wrote:Up grade then to Jap rod and silver caged bearing with the strong indian webs should bring me up to scratch
Big hints to the Mrs for xmas then

Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 8:58 pm
by Andy Pickering
Ye Paul thats the sip rims out the window

Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 9:20 pm
by Lamaddict
drunkmunkey6969 wrote:
I'd double check on that one before ordering, I could be wrong but I don't think that is the higher spec one with shimmed big end.
This would be useful to know and if they don't have the MEC with shims who does for a comparable price?
The SR cranks are good with those Jap big end bearings, I've just got one for a 175 set up. The SIL rod might be an issue with an RB?
Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 9:21 pm
by Supereibar
Andy, my experience here is dwarfed by the much more advanced "jedies" in the matter BUT, I would say that in order to fit the jap rod, you will need to check the stroke first, as the Jap rods always need a matching piston or a matching packing plate.
Re: Scooter restorations Jap crank.
Posted: Mon Oct 29, 2012 9:32 pm
by Jazzy
just to clarify, does the rb run standard length rod 107 and does it require a bigger oil slot in the big end.
Re: Scooter restorations Jap crank.
Posted: Tue Oct 30, 2012 11:21 pm
by shocky
Jazzy wrote:just to clarify, does the rb run standard length rod 107 and does it require a bigger oil slot in the big end.
yes to rod dont know about the oil slot
http://www.afrayspeed.co.uk/index.php?p ... buteID=CRR