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Post by jon on Jun 3, 2022 8:20:59 GMT 1
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Post by jon on Jun 3, 2022 8:15:22 GMT 1
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Post by jon on Jun 3, 2022 7:13:57 GMT 1
Kinda, but not really. There had already been 350 and 400 versions of the AC 2T parallel twin so making a 350 of the water cooled unit was always something marketing would want. Many countries had concessions for 250s and one was Japan hence most things RD started as a 250. Ie. In uk it was about learner laws and in Aus it was about 'road tax' etc. The USA and Canada wanted bigger engines and had no concessions, hence only had the bigger engines in almost all models. The loss of the learner law in the uk meant no ypvs sold there, whereas in Japan and Aus they sold way more 250s of those models than 350. The old twin was designed as a small engine from the start, everything is balanced for a 250 and that is why the rev so well. The lineage of the engine goes back to the 60s etc. The Lc was just another in the line of RDs (well it is really an RZ as Z means watercooling) so got the same treatment. The tie bars was something i guess the AC models (I know nothing about AC bikes) didnt have and didnt need, perhaps cos they didnt make the power of a watercooled machine? Jon, I don’t think it has anything to do with the ‘power of a water cooled machine’. As mentioned earlier the engine vibrates with harmonics around idle speed. I suspect, although can’t remember if a 350 is worse than a 250? Also mentioned is the fact it’s dimensions are better suited to the 250 being a square bore and stroke @54 which is what I’ve read is ideal. The 350 pistons must upset this balance to an extent. Interesting you say the Z means water cooled. This can’t be the case in all applications around the same time. What about the TDR 250? I knew usually R denotes a 2 stroke and F a 4 stroke, but don’t know if it’s actually an abbreviation? Jon
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Post by jon on Jun 2, 2022 9:23:12 GMT 1
I don't know about Allsppeds, but I usually find the flange doesn't connect to the barrel when fitting none standard pipes, making the paper gasket redundant. My Allspeeds have a flange that sits flush to the exhaust gasket face. I assume they all do. rdlccrazy.proboards.com/post/163880I know Microns don’t, which is a poor design so I made some much better ones for my Microns. rdlccrazy.proboards.com/post/433710Jon
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Post by jon on May 31, 2022 12:49:08 GMT 1
Bizarrely, he was about 19 years old and had no idea what an RD359 was… bless He did try though, but there is no stock of this part in the UK or Japan so, another one bites the dust… I’ve got no idea what an RD 359 is either? 😂 Jon
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Post by jon on May 31, 2022 10:56:08 GMT 1
I think you’ll find it is 5/16” for a YPVS. 93515-32029 £1.84 from you local Yamaha dealer. Or push the boat out and get a ceramic one from Norbo for £10 and it will never seize. The LC is a smaller metric size, but I can’t remember what size. Anyone? Jon Dusty measured one for me at 7.9mm. The one I found in my box is 7.8mm. Dusty’s is closer to the 7.94mm it should be (ie 5/16” as said). Jon
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Post by jon on May 31, 2022 10:38:48 GMT 1
Cheers for that, Now I have to try and tell the 18 year old spotty youth at my nearest dealer exactly what this is so he can get it ordered. 🙄 Download a parts list from here, all safe. Always better to have part numbers to give to the spotty oik working in the dealers these days, saves a lot of time and hassle, and saves you going blue in the face when visiting said dealer. rd350lc.net/pageMICROFICHE.htmI must be lucky. My local Yamaha dealer is very helpful. Jon
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Post by jon on May 31, 2022 10:16:20 GMT 1
I think you’ll find it is 5/16” for a YPVS. 93515-32029 £1.84 from you local Yamaha dealer.
Or push the boat out and get a ceramic one from Norbo for £10 and it will never seize.
The LC is a smaller metric size, but I can’t remember what size. Anyone?
Jon
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Post by jon on May 31, 2022 10:07:35 GMT 1
veg yes that’s the one, the markings of the Normandy invasion. The old grey cells aren’t what they used to be. Jon
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Post by jon on May 30, 2022 12:59:33 GMT 1
Saw another just now over Rochester airport. Was different though, it had battle of Briton stripe on the under wings.
Jon
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Post by jon on May 30, 2022 12:46:53 GMT 1
It explains why Metmachex make it original width though.
Jon
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Post by jon on May 30, 2022 12:44:27 GMT 1
Shim it out on both sides so it moves freely and has barely any axial play. I had the same problem a few weeks ago with a Wilbers shock. I can't tell you if there is a known tolerance. The original shock should be fitted with two ruberized shims or washers. The rubber cups from the original shims was too small in diameter pass around the outer diameter of the shock bush on the Wilbers shock. Ah I see, the OEM shims only fit the standard shock. In that case I agree, shim it out. If your stuck, I could make you some to fit for a reasonable price. I made some in aluminium for mine for the very same reason. Jon
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Post by jon on May 30, 2022 12:37:30 GMT 1
Where it has the pin through the bottom of shock and swingarm top mount SHOULD there be any or much play? Mine is showing about 1.1mm , but I can't remember what it looked like with yss shock and old swingarm, photo shows it pushed to one side to show the gap better Mart I suspect you missing these 1W1-22128-00 Jon
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Post by jon on May 29, 2022 10:28:02 GMT 1
I get what your saying about the order (head first then barrels), but when you say ‘torque’ the barrels do you mean torque or tighten? I can see how to get a torque wrench on some studs, even with a wobbler. Thought about a modified crows foot, but is that just over the top? Jon I mean torque but you could tighten 4 fingers on an open hand on each nut is approx correct Personally I bought an NK offset spanner to do the job Attaches to your torque wrench and there is an equation to get the correct torque Steve Hi Steve, yes I’ve seen those, but being a heathen I used 13mm AF stainless to make my cylinder nuts. Jon
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Post by jon on May 29, 2022 6:38:58 GMT 1
I've always done as per the manual Just remember base nuts finger tight, torque head, torque base nuts Steve I get what your saying about the order (head first then barrels), but when you say ‘torque’ the barrels do you mean torque or tighten? I can see how to get a torque wrench on some studs, even with a wobbler. Thought about a modified crows foot, but is that just over the top? Jon
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Rubber
May 25, 2022 13:29:40 GMT 1
via mobile
Post by jon on May 25, 2022 13:29:40 GMT 1
It’s a funny thing about dates on things like this. I’ve had Arai helmets for years. One time I had a helmet that was in perfect condition, but was 8 years old instead of the recommended max of 4. When I bought a new one there was no date on it. I was told it was to avoid punters haggling on a helmet with some of the recommended 4 years taken up by storage etc. it was left down today the owner.
Jon
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Post by jon on May 24, 2022 21:58:57 GMT 1
Where abouts in the U.K. are Adrenaline two strokes?
Jon
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Post by jon on May 24, 2022 17:00:52 GMT 1
An old used rubber is OK as long as it’s sticky. Be careful of small cracks though as you’ll be in trouble if it bursts open while your going full chat 🤣
Jon
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Post by jon on May 23, 2022 17:59:18 GMT 1
I can’t remember where I heard it from, but I’m sure someone told me of a certain make of car (probably from the VAG) where they popped the bonnet and showed someone peeling off a badge on the rocker cover of one brand to reveal it had been stuck over another.
Jon
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Post by jon on May 22, 2022 9:45:25 GMT 1
I’ve been watching this F2 for a while. I sure when initially advertised it was a ridiculous £12k. Slowly it’s been reduced bit by bit. I’m interested to see it’s final price as I have a very similar one that I’m probably going to end up selling. Jon
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Post by jon on May 22, 2022 8:32:54 GMT 1
Banshee's don't have power valves so not sure if it would be compatible Probably worth a shot Is the power valve circuitry anything to do with the CDI? I didn’t think it was? Jon
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Post by jon on May 22, 2022 8:15:10 GMT 1
Much easier on an LC engine, never seen it done on a YPVS. Would involve a lot of welding and subsequent machining.
Jon
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Post by jon on May 22, 2022 8:12:02 GMT 1
Never mind the fact that's it's only use is to adjust an 18 or 19 year old shagged shock absorber Most bin it Steve I didn’t know 31k’s were still available around 2003? Jon
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Post by jon on May 21, 2022 15:58:53 GMT 1
It’s not punk, punk would be an Mz 250 with a hardtail springer front end and ape hangers, it’s not cool everyone would point and laugh at you, I’m glad people like that exist they keep me in a job 😁 Yes, that would do too. But I stand by my word in the fact it’s quite clear the ‘designer’ of this machine clearly doesn’t give a f**k what others think, which in my mind is a bit punk? When I first saw it I thought the green yokes were too much, but the more I think about it; that’s probably the point? Jon
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Post by jon on May 21, 2022 14:56:28 GMT 1
That’s the joke of it Jon. Yamaha didn’t make this, they bought it from another manufacturer and bagged it; like many other items such as tyres, electrics etc. No use in the bag, so once fitted its identical to a £10 generic one, except being rubber it’s likely to have degraded n fail sooner than a new one. Some people are just unbelievable. Jon
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Post by jon on May 21, 2022 13:45:58 GMT 1
Not for me, but each to their own. Motorcycle ownership is a broad church. Too right brother. I actually quite like it (as I’m admire it) but it is not something I’d own. I imagine it would not be liked generally in the RD and ‘biker’ fraternity? That kind of why I like it. A two fingers up to both brethren. Sort of a bit punk? Jon
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Post by jon on May 21, 2022 9:18:49 GMT 1
Spotted earlier this week. What looked like a grey RD350LC with speed block decals and expansions coming off Gillingham business park onto Heath way.
Jon
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Post by jon on May 21, 2022 8:45:27 GMT 1
OEB - yes that's right. But either way, to change it 2mm from TDC only takes a small amount of turn and gets nowhere near the timing marks. There is 2 pickups on the flywheel, which I assume is 1 for each cylinder. Should I try timing it against the other cylinder? I would like to prove whether I have the correct flywheel - no idea why someone would change it - but I don't know how I can do that. The 2 pickups are not technically designated as 1 for each cylinder. It’s a losey system, so both cylinders fire on each pickup. I don’t think it will help you too much, but are you taking into account dwell? At TDC you can move the flywheel about a bit and the DTI still not discerningly move. I always take the mean of wiggling is clockwise and anti-clockwise to find the true TDC. Jon
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Post by jon on May 19, 2022 19:09:12 GMT 1
Is this for road or track? Aluminium or steel?
So many for’s and against’s.
Jon
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Post by jon on May 15, 2022 9:58:42 GMT 1
Welcome Linx 😎 Share some pics when you’re settled, I find the Tapatalk app easiest to upload pics. 👍 Thanks everyone for the welcome messages. I'm near Stratford upon Avon. I'll try to add some pics. Welcome, a pair of nice bikes there. Out of interest why are you selling the 500? Jon
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