Author Topic: Motul oil  (Read 1066 times)

Offline Pauarc

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Motul oil
« on: November 01, 2023, 02:46:29 PM »
Does anyone know if Motul 3000 4T 10w40 Mineral Oil has got zddp in it or can it be added and would it be worth adding
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
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Offline McCabe-Thiele (Ted)

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Re: Motul oil
« Reply #1 on: November 01, 2023, 03:26:39 PM »
We have been here before Paul I suspect for commercial reasons many oil brands  do not show the make up of additatives like zddp. I think agreement was for the 750 high zinc contect is essential for other less beneficial or unsuitable.

http://www.sohc.co.uk/index.php/topic,29416.msg283715.html#msg283715
« Last Edit: November 01, 2023, 03:29:08 PM by McCabe-Thiele (Ted) »
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Offline McCabe-Thiele (Ted)

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Re: Motul oil
« Reply #2 on: November 01, 2023, 03:34:09 PM »
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
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Offline Pauarc

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Re: Motul oil
« Reply #3 on: November 01, 2023, 06:07:43 PM »
I am clutching at straws now just can’t get a good gear change have fitted new clutch plates and steel plates  I also change the adjuster in the clutch new cable I may try castrol gtx classic 10w40 mineral which has got zddp in it but it looks like engine out and look at gearbox is there any other options
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

Offline Johnny4428

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Re: Motul oil
« Reply #4 on: November 01, 2023, 06:25:36 PM »
More liable to be a problem with the selector mechanism. I take it you have had a look?
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Offline Pauarc

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Re: Motul oil
« Reply #5 on: November 01, 2023, 06:49:47 PM »
Yes I been through selector mechanism change some of that I did notice that there not a lot of oil around the clutch
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

Offline Nurse Julie

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Re: Motul oil
« Reply #6 on: November 01, 2023, 07:02:19 PM »
Thinking about it logically, if you've ridden the bike and the new clutch hasn't burnt out, there must be enough oil getting to the right place.
Edit... Is it all gears or just 1st gear that's the problem?
« Last Edit: November 01, 2023, 07:04:44 PM by Nurse Julie »
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Offline Pauarc

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Re: Motul oil
« Reply #7 on: November 01, 2023, 07:15:29 PM »
Bad changing on all gears get worse when hot
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

Offline K2-K6

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Re: Motul oil
« Reply #8 on: November 01, 2023, 07:57:20 PM »
Aah, I get the angle now  :)

Zddp isn't likely to affect that in any significant way. It's ultimate function is too stop cold welding of two parts under the most extreme pressure, not as general lubrication.  As I understand it from studies I've looked at some years ago, present in the range of 800~1100 ppm proved to be optimum but was specifically related to camshaft lobes and followers, this is tge principal reason for inclusion in older engine.

Worthwhile asking you to describe what specifically is the effect you're getting in regard to changing gear to discuss further. Is it going up down, clutched or not etc?  I dont feel it's the oil doing it.

Offline Pauarc

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Re: Motul oil
« Reply #9 on: November 01, 2023, 08:41:59 PM »
Bike drag’s and clunky when selecting 1st then if I change up the box slowly not to bad odd times it may miss a great but not the same gear when coming down the box clunky and hard to change some time it goes into neutral ok get worse after a run and bike get hot tried setting adjuster with no gap no difference just slips
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

Offline Pauarc

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Re: Motul oil
« Reply #10 on: November 02, 2023, 07:50:40 AM »
Should you be able to just pull clutch outer off when you remove thrush washer mine fit loose (after removing plates)
« Last Edit: November 02, 2023, 07:53:50 AM by Pauarc »
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

Offline Martin6

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Re: Motul oil
« Reply #11 on: November 02, 2023, 09:20:47 AM »
That ought to be fine, provided there's no play on the shaft (ooh mrs.!) when it's fully home. Not been into the Honda, but have on other bikes and they were a nice snug fit, but easy to pull off by hand.

Offline Martin6

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Re: Motul oil
« Reply #12 on: November 02, 2023, 09:26:45 AM »
That finger at 10 o'clock looks pretty notched, that could inhibit clutch plate movement?

Offline Pauarc

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Re: Motul oil
« Reply #13 on: November 02, 2023, 10:10:48 AM »
Hi Martin
Well spotted will have to check may be flash giving a shadow look at some other pictures can’t see it but  I will have to check
Thanks for your reply how’s your engine going
Paul
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

Offline Pauarc

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Re: Motul oil
« Reply #14 on: November 02, 2023, 12:19:21 PM »
Picture of linkage can anyone see any problems
Honda 90ss, Cb250k1 supper sport,
Cb400 four, CB750k7, Cb550, Cb750f2n,
Cb750k2

 

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