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I have just been given 12 litres of Yamalube 10-40 fully sinthetic oil. for 4 strokes . What on earth can I do with that  ?. Not really suitable for our old clunkers. Paint it on the fence?.

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Not suitable for old clunkers that's what I thought, until I saw a mechanic changing the oil in a oily rag Manx Norton three years ago at the Isle Of Man classic TT. We had a good chat about this Norton not missing a beat in any of its races and not breaking down unlike a number of other machines.

I asked him if it was Castrol R and that I was using Morris straight 50s in my Manx after a full rebuild, he told me the oil he was using was Fuches Silkolene Pro4 Extreme performance 15w-50 Fully Synthetic Ester Race oil...........

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I would have used it in the Ducati ,but it has a wet clutch----. If it had been 15-50 perhaps in the 99 engine,and hoped none found its way into the primary-----. .  I know,fork oil, a lifetimes supply.

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About oil for the Manx. Previously Molnar recommended Morris MLR40 for his engines.A while ago he changed his recommendation to "Full synthetic 10/40 – superior to “R” used in our Team bikes." So I believe things have changed. Nowadays Ducati recommends a special Shell oil. What specifications has your Yamalube oil? It is quite possible that it is intended for wet clutches. Can't remember any Yamaha motorcycles with dry clutch. But they do a lot of other things to, e.g. boat motors.

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I don't have much to do with bikes under 50 years old (by choice!) ,so any reference to modern bikes (with wet clutches) and suitable oils is pointless. Most old bikes live on the edge with clutches that only just cope, and a little too much or too slippery and they don't cope at all. I am considering using the oil in the engine of the Atlas or 99.  The atlas is particularly hard to kick over (actually impossible for me) so a thin oil may help,but if any gets through the oil seal into the primary ,----- goodby clutch!. The 99 is probably the better bet as the clutch is not so stressed, Don't know if any problems in just switching oils.Detergency and no filter??

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BTW. If anyone thinks "Oh no not another oil thread" please feel free to post something  much more interesting.  Or go back to watching Corronation St!!!.

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I'd use it in the engine. It's far superior to any of the oils we used to suffer back in the day. It may however find its way out through any leak points.....

If it's OK for Yamahas which have wet clutches then it's OK for use in primary chaincases although my preference is for ATF.

Having said that I buy standard 20W/50 for the engines of both my ES2 and Moto Guzzi.

The thing you have to avoid is friction modifiers which are used in some car oils. They can be identified by a special symbol as below.

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I have been using a 10/40W to use it up in my B44 with roller big end, no problems. With a shell bearing big end I use 10/60W as the higher viscosity at higher temps keeps the oil pressure up.

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Well ,the 99 is due a change now so I will give it a go.my only reservation is the orriginal big ends that had considerable wear (26 years ago!)  and I just polished them up and fitted new Vandervell shells from John Hudson. Will the thin 10/40 fill the gaps? .we shall see.At least it will be easier to kick over.

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Hello, the best of all primary chain oil is made for Harley Davidson, Lucas Primary chain oils see Ebay oils.UK   best oil  is Duckham classic Q40 or classic Q20/50   next up is Castrol LX  or Morris  oils,    Milliers oils,  Rock oil,  Lucas oils,    Penright oils,   Shell oils,  so take your pick                                      yours  anna j  

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Hi Anna,the only point to this thread is I have a FREE!! oil supply  of 10/40 fully synth and is it suitable in the engine (only) of the 99. Taking a gamble on it.

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It is likely to flush out any old cr#p that may be lurking in hidden corners in the engine. I would probably only use it in conjunction with a full flow Commando/car-type canister oil filter. If not, you may want to sacrifice the first fill-up quite soon, as you would do with flushing oil.

If not, have you got a car?

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... that detergent or any other oil "flushes out crap". Once it's settled I can't see any reason why it should move as there's no real flow over anywhere it might have lodged.

The point of detergent oils (which virtually all are these days) is that rather than dropping any deposits they hold contaminants in suspension so that they're removed with oil changes.

However, I agree an early change would probably be a good idea especially as it's free!

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Don't think Yamalube  is a suitable oil in a modern Kia  that has a 7 year warranty, or my diesel van.I did many years ago buy an oil filter kit from  our beloved Norton agents. Nothing fitted ,pipes too big ,no way of fitting bracket ,oil pipes in filter head insecure. Gave up.Resolved never to deal with them again, threw it in the pile of useless new stuff.Its all part of the ritual of running an old bike.I had similar problems with ALL the known Norton stockists  ,some however do try to work with you, and have an honest attitude.

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Don't forget that the Velocette that set the 24hrs speed record was running on 10W-40. It lasted the course.

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Ah, you have confessed! It was you that bought Kia, was it?!!

Ian. All well and good with a proper filter, but risky without. I am quite sure I would not want these contaminants washing around my engine, without being removed by a modern filter on the first circulation. We agree on an early oil change though; the whole point being that the oil is free!

Gordon. 10W-40 what? !0w-40 is available in mineral, semi-synthetic or fully-synthetic; very different oils.....

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The Kia is the wife's choice,high, so  exceptionally easy to get in and out  for arthritic oldies ,automatic for those with arm problems ,a tardis for room, and it has an openning roof, heated seats .and in HER colour!. Also very good in collisions with Royal Range Rovers. Give me a Transit anytime. I will look at the crappy filter kit again.Happily when I take out the 99's sump magnet there is never anything on it.Magnets in the tank too.

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Yes, but I do not think the issue is so much the grade of the oil, as the fact that it is fully synthetic.

Robert. I was only joking about the Kia; they certainly pack a wallop!

Is this the mounting bracket that came with your kit? See attached. If so, does it not fit? It looks to me that the weight of the filter would encourage the bracket to pivot on the mounting bolts. I bought a filter kit for my 650ss-engined Wideline a few years back, which they say 'fits to any flat surface'. Hence, no mounting bracket. I made one, but it is not really satisfactory, and needs replacing.

Ian

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Well the deed is done,  !0/40  fully synth in the old clunker.  I will also take another go at a filter , I have some diferent ideas on pipe runs,  nothing I have seen  looks "right"  , but  it may not be that simple.  Have to push on with getting the 99  fully sorted , My bucket list   includes a week or 2  trundling through  rural France on the back roads. 

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Ian...the bracket you show works fine. It bolts to existing lugs under frame rails and the cut outs lean on the cross tube. It can't rotate anywhere.  (I see a twig stuck in there somewhere! Not original...just patina...but do I see a wonky bolt head?)

 


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