pokeimam
New Member
Posts: 14
Likes: 5
Registered: Sept 13, 2017 12:48:58 GMT -7
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Post by pokeimam on Aug 27, 2019 1:33:42 GMT -7
Hi guys ,
I hit 26.000 Kms on 2017 Mt10 SP in two years, next month my guarantee will end . I used Motul 7100 10w-40 in winter and 10w-50 in summer times and changed it regularly. I never drive off with cold engine ..
In mechanical aspect I had to change the steel plates on the clutch , they have warped because of me launching in 2nd gear , the clutch basket had some minor dents , also filed the dents abit ... No problems for the engine other than this for me..
Does anyone had any mechanical failures , which oil are you using ?
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Post by evitzee on Aug 29, 2019 15:39:58 GMT -7
Hi guys , I hit 26.000 Kms on 2017 Mt10 SP in two years, next month my guarantee will end . I used Motul 7100 10w-40 in winter and 10w-50 in summer times and changed it regularly. I never drive off with cold engine .. In mechanical aspect I had to change the steel plates on the clutch , they have warped because of me launching in 2nd gear , the clutch basket had some minor dents , also filed the dents abit ... No problems for the engine other than this for me.. Does anyone had any mechanical failures , which oil are you using ? There have been a handful of complete engine failures which seem to relate to oil flow problems to the crankshaft bearings which results in the engine going boom, you can search for the threads. Seems to be a rare occurrence. Otherwise there haven't been too many mechanical issues. Oil? Threads galore on brand and weights.....it's a perennial topic on bike forums, this one included. I use Yamalube 15W50 as recommended by Yamaha, other folks have other feelings on this choice.
Question, why are you launching in second gear, just adds more stress to the clutch and related components which you have discovered.
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Deleted
Posts: 0
Registered: Apr 20, 2024 1:07:12 GMT -7
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Post by Deleted on Aug 30, 2019 10:40:09 GMT -7
As Evitzee already said, very few mechanical issues. And of the blown engines, you never know what led to them, like improper maintenance, wrong oil, engine not tuned without cats (running too lean/hot), a bad tune, etc. So can't really blame Yamaha for all IMO. As far as oil, a 'controversial' topic indeed. But my take is an obvious one. Most of the engine wear occurs at start-up, due to lack of lubrication (oil too thick). Therefore, the thinner the oil when cold, the quicker it lubricates properly, and THAT is why I always choose the lowest 'cold' number possible (zero drawback doing that). Similarly, when hot, thicker oil is harder to pump (pretty obvious), causing extra friction, heat, etc, so I always minimize the 'hot' number too, since I don't track my bike. And yes, that also applies to hot weather (only if tracking I'd choose 50). So I use Castrol Power1 4T 5/40. Having said that, you can use whatever oil is recommended, and it'd be fine  . Just make sure it's a motorcycle specific oil, and preferably full synthetic, since tranny gears are brutal on oil. |
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Post by thefinn on Sept 22, 2019 8:35:04 GMT -7
I personally only use the Motul 7100 10W-40 here in Finland. I change the oil and filter annually.
Ive heard that the oil cooler on this bike actually cools the oil too much for street riding, so unless you mostly ride in the city id personally just stick with the thinnest oil possible.
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Post by thefinn on Sept 22, 2019 8:37:39 GMT -7
Also ive heard from some mechanics that the best thing to do is to choose one type of oil (preferably the exact same one) and stick with it for the lifespan of the engine. Dont remember the exact reason why but im sure there are youtube videos out there explaining it. I think it had to do with the engine wear getting used to one type of oil and adjusting to it, change it and it adjust to the new oil (grinds away untill its completely smooth over and over again)
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Post by hooli on Sept 22, 2019 13:09:54 GMT -7
You can change oil weights whenever you please. An engine doesn't "get used" to a certain oil viscosity.
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superspirit
Full Member
Posts: 214
Likes: 84
Registered: Oct 2, 2017 14:59:43 GMT -7
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Post by superspirit on Sept 22, 2019 16:12:26 GMT -7
Also ive heard from some mechanics that the best thing to do is to choose one type of oil (preferably the exact same one) and stick with it for the lifespan of the engine. Dont remember the exact reason why but im sure there are youtube videos out there explaining it. I think it had to do with the engine wear getting used to one type of oil and adjusting to it, change it and it adjust to the new oil (grinds away untill its completely smooth over and over again) The reason it is recommended to stay with the same brand of oil is because of the different additive packages used by various manufacturers. Each different additive leaves it's own residue behind, when you start changing brands of oil different additive start mixing and forming sludge. Doesn't always happen but it can. |
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. Just make sure it's a motorcycle specific oil, and preferably full synthetic, since tranny gears are brutal on oil.