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RGV250K - 30 years in the making.


Ray Von
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On 5/30/2020 at 9:42 PM, Ray Von said:

 

Also an holy grail uncut rear mudguard. 

 

 

But does it have the little flap that covers the coolant overflow filler? The hole always irritated me. Not enough to actually do anything other than refit the seat and ignore it though.

Regarding worn powervalves, I'd replace the pin, arm, shaft, and I think there's a little bush too. Mine had a little wear in each part: just enough to allow the bottom cylinder's valves to sag in, piston catch them, send them out of the exhaust thankfully... Repaired the cylinder, and all was well with new lifting gear in.

 

 

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On 5/27/2020 at 7:39 AM, Ray Von said:

 

 check the gearbox, as they jump out of 2nd when worn and accelerating hard) 

 

The Ellis-Moore tall 1st gear gives 2nd an easier time by reducing the jump/torque shock, and makes it nicer to ride without the clunk in to second, if you don't mind more slipping to get away. Makes it easier to use on track too. You only need one gear so it's not drastically expensive either.

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  • 2 weeks later...

Quick update really, not done too much lately, but saw that Tyga are making VJ21 screen braces out of ally, be a nice enhancement I reckon. 

Sort of looking at what I can improve, there are a number of items in carbon and ally that would replace a steel or a plastic part, think it would be a nice exercise in old & new tech. 

2020-06-25_10-57-21

 

Edited by Ray Von
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  • 7 months later...

I'm selling my spare frame VJ21 wolf and swingarm, it's on ebay at moment to try and clear some space out, due to deciding to build a bigger shed (hence the delay in my project). 

Once I have completed that, hopefully May, I can then start on the Rgv again. 

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17 hours ago, Ray Von said:

I'm selling my spare frame VJ21 wolf and swingarm, it's on ebay at moment to try and clear some space out, due to deciding to build a bigger shed (hence the delay in my project). 

Once I have completed that, hopefully May, I can then start on the Rgv again. 

@Monkey

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19 hours ago, Ray Von said:

I'm selling my spare frame VJ21 wolf and swingarm, it's on ebay at moment to try and clear some space out, due to deciding to build a bigger shed (hence the delay in my project). 

Once I have completed that, hopefully May, I can then start on the Rgv again. 

Even with this hiatus it will probably be finished before @johnnymack63's RGV :pokeit::D

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  • 1 month later...

Another update, the engine is going off next week to be rebuilt, but....... as a 325cc conversion. 

 

 

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  • 2 weeks later...
Posted (edited)

So I have some gratuitous crank shots, and it's not brilliant news, but to be fair, I wouldn't be happy 'not' having the crank rebuilt. 

2021-04-05_03-24-58

But give me an opportunity to have the 2mm thicker rods to hold on to the bigger pistons now

2021-04-05_03-25-13

In this shot you can see the fatter conrods. 

2021-04-05_03-25-27

Happier this thing will be more resilient with a big oomph in more midrange and power everywhere, probably looking at a good reliable 70 - 74 bhp once done

2021-04-05_03-24-41

 

 

Edited by Ray Von
Missed pic
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  • 2 weeks later...

So today the new fork tubes arrived from Japan, took 2 weeks. 

These will replace the bent and rusted originals. 

2021-04-14_09-37-28

 

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On 2/11/2021 at 4:53 PM, johnnymack63 said:

I don't doubt it for one second.

Although mine now has carbs.......

More than mine has, I am still at component parts in boxes 😂

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After my recent foray into Japanese selling sites, I found myself trawling through hundreds of items before finding this little gem. 

2021-04-19_05-56-06

Aluminium bottom yoke, the standard ones are steel and weight a frigging ton. 

I'll have to weight them next time I'm in the shed, but this is super light in comparison. 

I couldn't understand the translation, but do know that the aluminium bottom yokes have the stem pressed in, whereas the steel ones are welded in. 

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11 minutes ago, jim157 said:

Is that from an SP? 

Yes, I think so, I've never seen one before or see any for sale, just what was on the old RGV site on bike info, so knew they existed. 

I've just got back from the shed and weighed both. 

Steel one comes in at 2.3kgs

Ally one comes in at 1.3kgs

 

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On 4/19/2021 at 6:15 PM, Ray Von said:

After my recent foray into Japanese selling sites, I found myself trawling through hundreds of items before finding this little gem. 

2021-04-19_05-56-06

Aluminium bottom yoke, the standard ones are steel and weight a frigging ton. 

I'll have to weight them next time I'm in the shed, but this is super light in comparison. 

I couldn't understand the translation, but do know that the aluminium bottom yokes have the stem pressed in, whereas the steel ones are welded in. 

Rare. Great spot. 

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  • 2 weeks later...

Another update, engine is bored out and ported to suit, and now the cylinders are off to the platers. 

Cylinder heads machined and o-ringed. 

Another couple of weeks and the engine should be back. 

 

2021-05-05_01-50-55

 

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More on the engine progress, the bottom end is back together and looking toptastic. 

2021-05-09_02-23-382021-05-09_02-23-162021-05-09_02-23-51

 

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  • 4 weeks later...

Well the engine is ready for collection next week. 

But look at the size of the new pistons 😁

2021-06-05_10-56-012021-06-05_10-50-19

 

 

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Why on the left hand side of the barrel is there a length of threadedbar instead of a stud?

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One more of the power valves, if you look closely, you can see the super rare black powerband. 

2021-06-05_10-58-54

 

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3 minutes ago, Tom Mac said:

Why on the left hand side of the barrel is there a length of threadedbar instead of a stud?

Just temporary that was until new item fitted, so he could bolt all down and check squish. 

I had a number of bits missing as I was hoping to use my 88 cylinders, which have different ring peg positions to all other RGV250 pistons, so had to change to a pair of 89 cylinders I had instead which I didn't have all the studs for anyway. 

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Engine is back home now, just need to finish off building my shed now, so I can start getting items lined up for re fitting. 

So expect a bit of a break now whilst I spend the next month fitting out and painting the workshop. 

2021-06-11_08-47-25

 

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  • 3 weeks later...
8 hours ago, trident_special said:

"249cm3"

LIES!!! :) 

Just like in club land back in the day, think I was the only one running regulations. 

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8 hours ago, trident_special said:

Faulty quote thing

Another cheeky purchase direct from Japan arrived this morning. 

Genuine Suzuki brand new vented power valve covers, still a lot of money now in the UK, but £50 delivered, bargain. 

2021-06-30_02-03-09

 

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  • 2 months later...

On inspection of the smaller details on the bike the right hand footrest hanger had been badly repaired in the past, spent some time looking for a replacement, to the point the only thing left to do was go Tyga. 

2021-09-16_10-51-24

 

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So a lot of the alloy parts have gone off to Jamie for blasting, and the nuts bolts and misc shit are off to a contact for plating. 

2021-09-12_10-20-49

Hopefully I can start putting things back together at some point in late October and on track to get the bike ready for spring time. 

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