Shrinking a 300 to a 250

Show us that box of bits in your shed!
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mellorp
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Shrinking a 300 to a 250

Post by mellorp » Wed Feb 14, 2018 5:11 pm

The 300 arrived along with the assorted boxes of bits. A quick inventory check showed a pretty good record of all the bits and pieces.
1st job to store the big bits, fairings & pipes and make the bike move able with a dry fit.
Wheels came off and the various spacers found and then reinstalled. No major probs. Brakes on and calipers positioned. As expected the calipers have seized up. A refresh is on the way
On the shelf (well the loft) I had a freshly built crank and some 250 wosner pistons. The 250cc barrels are a bit sloppy so they have gone off for a replate
Plan is
Dry build everything before I drop the engine. That should highlight what bits I have spare/missing/broken.
Once the replated 250cc barrels are back I will drop the engine and rebuild it with the new crank. I might pop a BDK F3 Kips system in whilst it's apart. With the engine out I can get the frame welded.
Then the existing crank and 300 kit will be up for sale.
Rebuild it, MOT it, Thrash it :-)
Pics (maybe) to follow

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Binetta Steve
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Re: Shrinking a 300 to a 250

Post by Binetta Steve » Wed Feb 14, 2018 7:23 pm

Rebuild it, MOT it, Thrash it :-)

Thats the spirit, good man!

mellorp
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Posts: 282
Joined: Fri Sep 19, 2014 6:44 pm
Location: South Manchester

Re: Shrinking a 300 to a 250

Post by mellorp » Fri Feb 16, 2018 11:58 am

1st parts arrived from Venhill. New throttle cable and some KIPS cables. A massive thanx to RickNC30

mellorp
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Re: Shrinking a 300 to a 250

Post by mellorp » Thu Mar 15, 2018 4:27 pm

The dry build is going a bit slow as I have damaged my hand (binned one of the NSR's at Oulton; Idiot). Anyway new brake lines fitted along with reconditioned calipers front and rear. An order from Cradley Heath for some missing bits, springs, grommets, odd nuts, carb rubbers (why not) and some new gaskets ready for the rebuild once the barrels are returned. Found a fuse box on eBay so I can check out the electrics once that turns up. The RGV250 VJ23 uses a 55A starting current battery that fits in the KR1s battery tray. One of them is going in as they are only slightly more expensive that a std gel battery (from TheTuningWorks).

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Binetta Steve
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Re: Shrinking a 300 to a 250

Post by Binetta Steve » Thu Mar 15, 2018 7:18 pm

Good decision on carb rubbers. Lots of folk on here , myself included have had running issues, binned the cracked rubbers and clean throttle response abounds. Please get some photos of the bike up when you get a chance
Steve

mellorp
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Posts: 282
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Re: Shrinking a 300 to a 250

Post by mellorp » Thu Apr 05, 2018 5:36 pm

No excuses why we can't get started now I have a few important new bits

https://www.flickr.com/photos/156864217 ... ed-public/

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