I tried to do quick write up off the top of my head here.
I took my “standard” a.k.a. General Heavy Motorcycle License earlier this year. I had friends who let me borrow their scooters to practice in empty parking lots or out in the middle of nowhere though which helped for getting a feel of scooters.
If I miss anything or you have more questions feel free to ask.
I’m assuming you’ve already gotten your ARC. That ID number will be used for registration. The learners permit thing mentioned on the website is for cars. Motorcycle you just go straight to applying for the test. Only heavy motorcycle license requires a mandatory course, but you can only register for that license and course after 1 year on a 50-250cc license.
There are training classes that you can sign up for where they will teach you how to ride a scooter and will have their own test course (same course although the order of things may be slightly different) where you can practice a lot. Probably up around Taipei easier to find one that has someone that can speak English. It’s something you can consider if you don’t have anyone that can help you practice. You can look up 機車駕訓班 and see if you can find something near you. These aren’t run by the DMVs. You can maybe try calling up a few places or visiting them to see if they have anyone that can speak English. Typically the pass rate for those that attend these courses are way higher if I’m remembering correctly.
Here’s the link to register. Was changed to only online a few years ago so you can’t book in person. As far as I can tell registration website is only in Chinese. For type of test select 普通重型機車 as this will be the 50cc-250cc license, the highest you are able to take for your first motorcycle license.
https://www.mvdis.gov.tw/m3-emv-trn/exm/locations#gsc.tab=0
Next choose place/region and from there select the available DMVs. Since you mention Shilin (士林) I assume that’s the most convenient location for you so select that one. Will be the first option in both drop down boxes.
As part of the registration process you are also required to watch a video and press the on screen button when you see something “dangerous”. You can repeat this as many times as necessary. You only need to pass once.
It’s the left most option on the window that pops up.
Top to bottom.
Age
Sex: 男性 Male, 女性 Female
Which city you reside in. I’m assuming you’re in Taipei city so select 台北市
Do you have a license? Since you don’t have a license in Taiwan select the first option 無
You may need to zoom out on the screen a little bit since the video takes up most of the screen and the button you need to press when you see something “dangerous” is below it.
After you pass this, so get 4 out of 5 right in the 5 videos, then your results are saved and you don’t need to worry about doing it again.
On the test date registration you can click on the right most option. From there select which date you want to register for. Just to let you know for some of the DMVs you may need to wait weeks for the earliest available test date. I recommend registering for the earliest date available to you and check every day or so to see if an earlier date has a slot open up since sometimes people will cancel. You can also take a look and see if any other DMV locations that do the scooter test will have earlier dates available. Make sure you are able to get there okay first though, but given it’s up North you should be fine with public transportation.
Once that’s all taken care of you can go do the mandatory health check up whenever is convenient for you. Do it before the test date. You can search online. I’m sure people have written about places you can do it at. As long as you barely have a pulse you will be fine and you will pass your physical.
Make sure you arrive in time for the safety “lecture” that you must attend the first time you take the test. There are no questions or anything. Just sit there for 2 hours. It’s all in Chinese. It’s okay, just sit through it. You only need to do this once so even if you fail either the writing or driving test you don’t need to sit through this lecture again (unless it’s been more than 1 year but this is not applicable to you).
For “rentals” from the DMVs these are only allowed to be used for the test. Typically you aren’t allowed to practice on them at all and basically just get on and immediately start taking the test. When you go to pay for the test make sure to tell them you want to rent to DMV’s scooter. Be warned…at some DMVs the scooter is in poor condition. Have heard some less than stellar comments from Taiwanese online about some DMVs scooters. I imagine for Shilin it should be…ok at least. The DMV will also have a helmet you can use but keep in mind this helmet will probably be used by everyone else using the DMV’s scooter as well and from what I saw was never disinfected or cleaned the whole test session. So maybe bring your own helmet.
I used the DMV’s scooter for my test and while it wasn’t in the greatest condition it was okay. Probably the biggest difficulty with it was it’s smaller size as when turning I bumped into my knee. If you are a taller person or have long legs this might be a little annoying…I kept my legs spread out ha.
Here’s a foreign Youtuber in Taiwan going through the process a few years ago. Still the same as now except for the addition of the videos you have to sit through and click the I see danger button when registering.
If you fail your test you can take the test again 7 days later (although getting a slot just 1 week later may be difficult). If you pass the written test you don’t need to take it again, you can just go to the counter and pay for your driving test and go straight to the course (you still have to register online).
No flip flops/slippers/etc. for the road test, just wear shoes. I know I know almost everyone in Taiwan rides like that but for the test wear a pair of shoes.
Also as mentioned the test is just a test and has little application to real life driving in Taiwan. I recommend that after you pass your test, get a license and get a scooter try going out for some rides early in the morning when hardly anyone is out to get a feel for your scooter, throttle control, braking, the roads, the environment, two stage turns, handling turns, etc. etc.
the guy in the video above that was posted was so shakey it hurt me to watch lol. I passed my M2 license testing in Canada first shot (same with every car license i’ve ever taken) which is waaaay harder but it expired awhile back. Same with my Filipino license. 
oh it’s that way? My appologies