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Google is your friend ... "BMW C 400 GT oil change" ... "BMW C 400 GT CVT belt change" ... "BMW C 400 GT replace air filter." Tons of vids out there. Some are not in English but the pictures are worth 1,000 words, as they say.

Just emailed you two pdf's from the BMW Workshop Manual for CVT work and oil + filter change. Beyond my paygrade to explain why ASC does or doesn't act as a governor; I only know the bike was quicker with lighter weight sliders.

I think you are right (per usual ;o). Forgot to mention when I had my lag issue I used Seafoam for three consecutive tankfuls of gas. Haven't had the problem since. Variator. OEM rollers are 43-gram each for 2019 and '20. I installed 38-gram Dr. Pulley sliders. Basically, lighter sliders make...

Had exactly the same situation with my 2019. Bought it this year with 1,192 miles. It basically sat in the seller's garage for five years. I'm not sure what "thumps and jumps" is; I'd describe my issue as a lag when I turned the throttle. It was so pronounced that for the first several minutes...

Well done! Great to know it's possible to retrieve the tube from the depths. Now I don't have to fret so much during oil changes.

Bomb Squad Pro Tip: You could shine a light in a mirror and angle the mirror so it bounces the light on the spot you want to see. Might take a little creativity to get everything set up at the right angles, but I sometimes find that easier than removing panels, a task I never enjoy (my Holy...

My sympathies on dropping your tube in the pan. I dread that with every oil change. Once I thought the tube was seated on the opposing wall and started to pull my screwdriver out slowly, only to see the tube slowly sliding off the screwdriver. I froze and stayed like that for a minute, with the...

Info on the aforementioned idle actuator hoses I copied for my files from a thead on this forum .... IDLE ACTUATOR HOSES – ISSUE WITH 2013’S STALLING “When going > 30 MPH and coming to a stop, the engine stalls. I can restart it without any issue but it's certainly less than desirable.” “Same...

Existing thread on this forum with a lot of good info: https://www.bmw-scooters.com/index.php?threads/where-is-the-2nd-onboard-power-socket-20-gt.2179/#post-21127

The only way to know for sure is to open the case and look. You can get a pretty good idea based on the riding history of the bike. I'm older and ride in gentlemanly fashion, so when I arrive at 12,000 miles my belt will very likely still be like-new (I bought it at 1,192 miles from an older...

ENGINE OIL 3.1 liters MOTUL 5100 4T 15W50 Synthetic Blend, rated SL (which is higher than SJ and formulated for catalytic converters). TORQUE Oil Drain Plug Bottom : 28 Nm (20.5 ft. lbs.). 8 mm hex TORQUE Oil Strainer Plug Side: 15 Nm (11 ft. lbs.). 17 mm socket. REMEMBER: Insert screwdriver...

That's a helpful answer, thanks. Confirms what I was thinking. A lot of lights come on when you turn the key. The speedo needle immediately whirls around to 120 and back and the lights go off -- except for the ABS, as you said, and traction control on later models. As visible in the photo in...

Ah, a perfect person to answer my original question: with the key on, and the engine off, is it normal for the Check Engine symbol to be lit up?

Update: disregard question. Don't need an answer. The bike is on eBay. Price started at $3,200 so I was thinking if there was no sale, maybe I'd buy it for $3,000, or even $2,800. That would be a steal. But bidding is now up to $3,750, plus I'd pay for airfare and one hotel night on the ride...

With the key on, and the engine not running, is the Check Engine light normally on? I'm looking at a pristine 2013 and one of the photos from the ad shows the Check Engine symbol lit, south of the fuel gauge. Seller says that's normal with the key on and the engine not running. But if that's...

Interesting report, thanks. Look forward to updates and good luck getting rid of that vibration. FWIW, I've used this grease in CVT and wheel work on my GT's, Burgmans and Silver Wings. Much cheaper than BMW's version and more easily available. $6500 for a two-year old Sport with 2k miles is...

Congratulations! Jeff sent me a message saying it was sold. Glad this gorgeous machine found a good home. Enjoy and welcome to the forum.

My 2013 GT hit 21,000 miles but I ended up selling it before a new chain was due. I changed the plastic chain rail at 15k, from the original #1 to #2 (of four, changed every 15k). Easy enough work. I replaced the gasket and used MOTUL Gear 300 oil (75W90). My notes from that time are pasted...

Good for you! Glad to see that. Geez, maybe I'll pursue that '72 VW Beetle more earnestly. Dreams can come true.

My only point was, people like BMW bikes here. I can't think of anyone who'd welcome a steady diet of negativity. You exercised a clear need to hate, hurl insults, and whine how hard life has been on you. That's behavior best expressed elsewhere. Nothing more to say to you (or read from you) but...