{"id":42,"date":"2016-04-02T18:17:13","date_gmt":"2016-04-02T09:17:13","guid":{"rendered":"http:\/\/mechasea.com\/arakifunkeymachine-en\/?p=42"},"modified":"2016-11-14T21:44:41","modified_gmt":"2016-11-14T12:44:41","slug":"consideration-of-sr400-dry-clutch-clutch-plate","status":"publish","type":"post","link":"https:\/\/mechasea.com\/arakifunkeymachine-en\/?p=42","title":{"rendered":"Consideration of SR400 dry clutch clutch plate"},"content":{"rendered":"

For now, I was able to SR500 to dry clutch. I was able to run.
\nI exhibited it to the Osaka Motorcycle Show.
\nAnd then, I was riding around remains of steeped of ordinary oil wet disk.
\nClutch basket and clutch boss of the dry clutch is made of our Araki \u00a0Funkey Machine. This is an additional pyrotechnic of SR400.<\/p>\n

\"2016_03_30-005\"<\/p>\n

After a while, it began to slide no longer off the clutch of SR500. I saw the clutch plate. It was warped. Distance traveled about 50km.
\nThis is a good data.
\nThis data would not listed also looking for the net.
\nIf you are reading this
\n“What happens if I use a wet disk dry?”
\nWhen asked to someone and,
\nYou are should I replied.
\n“You are beginning normally can run. But it can not be run only about 50 kilometers. When the running any more, things will get to come to pick a track to your father.”
\n\"2016_03_30-004\"<\/p>\n

If this is warped, to clutch slip, it should not expired.
\nBy the way, it is called the side of the iron plate only the clutch plate (here \u2191).
\nThen, the side that is put the friction material is called a friction disk.
\nSo, I learned that I needed dry discs.
\nI tried disassembling the cover of 3XV TZR and looked at the clutch plate. That is what I had in our factory.<\/p>\n

\"IMGS2802\"<\/p>\n

It is slightly smaller than SR. And the clutch spring is five. I look it up in “parts search of Yamaha<\/a>“. It was a waste number.
\nNext, I examined the clutch of TZR250SP of 3MA in the parts search of Yamaha.
\nClutch spring is the same as the SR in six.
\nFriction plate for about 1000 yen SR (360-16325-00),
\n3MA (3MA-16331-20) is 2700 yen.Expensive.
\nBut, I bought.
\nClutch plate came as for 3MA is the part number had changed. It had changed in 3AK-16321-00.<\/p>\n

\"img_1978\"<\/p>\n

\n
\n
\n
\n
\n
Fit!!<\/span><\/span><\/div>\n
<\/div>\n
\"img_1979\"<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
<\/div>\n
This is good.<\/div>\n
At the same time, the clutch plate also for 3MA (3J2-16324-00) I bought. This is also perfect.<\/div>\n
here,
\nI had been hooked a while ago, that there is a law for Yamaha’s genuine part number.
\nI investigated further using it.<\/div>\n
Yamaha uses the first three letters as the model number.<\/div>\n
For example, in the case of TZR250 is 3MA and 3XV,<\/div>\n
In the case of<\/span> SR is 2J2<\/span> and<\/span> 2H6<\/span> and<\/span> 3HT,<\/span><\/span><\/div>\n
\n
In the case of TZM50 is 4KJ.<\/span><\/span><\/div>\n<\/div>\n
<\/div>\n

Then, what is 3AK?
\nIt’s TZ250 of the 80s!
\n<\/span><\/span>Until the latest TZ250,Is the same as the friction plate and this 3MA.
\nTo<\/span> the<\/span> very<\/span> old<\/span> 3MA<\/span> of<\/span> TZR<\/span> and<\/span> TZ250<\/span> common<\/span> parts<\/span> of the clutch<\/span>,<\/span> but<\/span> the fact that<\/span> 3XV<\/span> and<\/span> TZ250<\/span> parts does not fit<\/span> anything<\/span>.<\/span>
\nAnd, there was further discovered in the clutch of the TZ250.<\/p>\n

\"BUHINZU-1\"<\/p>\n

Of the innermost and outermost of the friction plate, part number is different from the other.3YL-16321-01.<\/p>\n

I bought it. This.
\nMaybe,Place in contact with the aluminum is, will the things that use this friction material.
\nThe price is a little cheaper than 3AK-1632-00.<\/span><\/span><\/span><\/span><\/p>\n

\"2016_03_30-007\"<\/p>\n

Dry<\/span> friction<\/span> disk<\/span> is different<\/span> at all wet<\/span> and material<\/span>.It is close to the friction material of the brake pads.Glass or Kevlar like a thing or metalic pubic hair like a thing is kneaded.And stench.It smells like Bakelite, or ramen soup.
\n<\/span><\/span><\/span>In contrast, wet disc is made up of something like cork.I tried rubbing the clutch plate and the friction disk under conditions in which there is the oil film.It is, it feels like when chewed the pickles of eggplant.<\/p>\n

\"2016_03_30-006\"<\/p>\n

I tried to measure the thickness.This data is the data that I took spend the time and money.But, to publish so I think there is a value.When I compared them, dry\u00a0 disk is considerably thick.<\/p>\n

TZ250\u3001TZR250SP<\/p>\n\n\n\n\n\n\n\n
\n
name<\/span><\/span><\/div>\n<\/td>\n
Part number<\/td>\n\u00a0thickness<\/td>\n<\/tr>\n
Clutch plate<\/span><\/span><\/td>\n168-16324-00<\/td>\n2.3<\/td>\n<\/tr>\n
Clutch plate<\/span><\/span><\/td>\n3J2-16324-00<\/td>\n2.0<\/td>\n<\/tr>\n
Friction plate<\/span><\/span><\/td>\n3YL-16321-01<\/td>\n3.0<\/td>\n<\/tr>\n
Friction plate<\/span><\/span><\/td>\n3AK-16321-00<\/td>\n3.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

SR400<\/p>\n\n\n\n\n\n
name<\/span><\/span><\/td>\nPart number<\/td>\nthickness<\/td>\n<\/tr>\n
Clutch plate<\/span><\/span><\/td>\n360-16325-00<\/td>\n1.17<\/td>\n<\/tr>\n
Friction plate<\/span><\/span><\/td>\n5Y1-16321-00<\/td>\n2.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

I was ordered to reduce the number than the disk of normal SR.When you buy a number of disks required,It exceeds 20,000 yen.
\nFor now (March 2016) is, all parts from Yamaha you can get.
\nIf, when the supply of parts’ve finished,looking for a place\u00a0 to sell the adhesive and the tape of the friction material,It will want to manufacture in my company.
\nDemand of repapering of the clutch of four-wheel is a certain number.So<\/span><\/span>,to try to negotiate a company that is doing such a business\u00a0 seems that good.Companies that are delivered to manufacturers, I think is probably rejected.<\/p>\n

And I tried teamed up to the vehicle body.It was able to run normally.
\nNext, let’s ride in this specification.
\nIt is completed if there is no\u00a0 leakage of failure or oil of the clutch plate relationship with this.<\/p>\n

\"imgs2566\"<\/p>\n

By the way, The friction disc which ran 50 kilometers was reduced by 0.1 – 0.2 mm per one.
\nAs a whole, it has decreased by about 1 mm.That clutch should slip.
\nI measured the friction disc of the SR 500 that ran many times and it was not decreasing at all.The thickness remains 2.8 mm.This is wonderful.The wet clutch is quite excellent.
\nUntil now I have said that “wet clutch is mixed with engine oil and clutch waste”.But,This is not mixed at all.It has not decreased.
\n<\/span><\/span><\/p>\n