BMW R1200C, I've run just normal oil in my bike for 25 years, was thinking of switching to synthetic this change. Not a problem, right?

Inside gas tank spray liner is delaminating, how in the hell do you get the remaining lose and it out of the tank? I've tried a lot of the internet fixes but nothing is working very well.

I have J&M powered speakers on the bike, their just as old as the bike. It uses a single pin adapter to plug into a portable CD player headphone jack. I want to play music from my ipod via bluetooth. Is there an adapter that can link them? The speaker pin to a bluetooth receiver of sorts.

I hate to say it but, a new tank may be in order. NOS tanks were running + $1800! A used tank may not solve the problem.
Cant help with your music situation.

I would not switch to synthetic after 25 years, you will more than likely develop leaks

Get a new tank

I assume you are talking about a 3.5mm jack, see Bluetooth adaptors

https://www.amazon.com/s?k=3.5...f=pd_sl_5l0gg7jf0q_e

Why switch after 25 years?
Not being a smart ass, genuinely curious.
If you do switch, research it. Some synthetic oils have “friction modifiers” (usually molybdenum, etc.) that are too slick for clutches. That’s a single sump engine/trans, correct?

Yeah, sounds like a new tank. Ouch.

There are blue tooth to RCA and/or phono plug adapters on Amazon. Not sure if any one being better quality than another.

Can't help with the tank liner, but there are Bluetooth audio adapters available, a search on Amazon reveals multiple options. Most of these appear to be designed to allow playing from iPod, etc. to a home stereo, not for car/motorcycle use. Most seem to use an AC-DC transformer for power, and finding a 120VAC outlet on your bike might be a challenge, but if you have a USB port available that should suffice.

Of course, your other option is to find an old non-Bluetooth iPod that has an audio jack. My ancient iPod shuffle has one of these that I have used with headphones, etc. My wife's iPod Mini has all of BT, WiFi, and an audio jack.

The only thing that will happen with synthetic oil is that it will lubricate your engine better as the molecular chain doesn't break down as it does with conventional.
You will not get leaks or anything of the kind. Those are old wives tales.
Just use the correct viscosity and type. Mobile One and Yamalube are my picks and all have the appropriate "friction additives" for use in motorcycles.

quote:

You will not get leaks or anything of the kind.

Tell that to my 11 year old Buick Park Avenue that had 30k miles when I put synthetic in it

RyanP225 is correct. Synthetic will not make your bike leak and switching to synthetic is an excellent idea.

As for the tank, I send tanks to GTL www.gastanklining.com in North Hollywood Ca. They do amazing work removing the old liner, coating the tank with some sort of epoxy that ethanol will not hurt. The results are amazing. The process doesn't even hurt the paint.

Yeah, the old syn causes leaks was a HD Shovelhead era myth, those bike leaked even when they had no oil in them! Just glad we didn't hear the synthetic causes bearings to skate!

Switch it, get the right viscosity, I run Mobil 1 V-twin, engine is quieter and cooler, I also run it in the Primary which has the clutch, it's designed for gears, engine and clutch use on HD bikes, I would suggest talking to them, Amsoil and a few others about motorcycle oils for your model.

If you have a port there should be a BT adapter you can plug into it to listen, however, I would get BT headset for your helmet, then connect it to a BT device such as a smart phone and then you can stream songs from it, Pandora, Amazon Prime Music, Spotify, and go right around the radio, PLUS you can run Waze or Apple maps for your GPS routing and it will play through that same head set. Sena makes a good set, there are many others.

Link Sena

quote:

Originally posted by BigSwede:

quote:

You will not get leaks or anything of the kind.

Tell that to my 11 year old Buick Park Avenue that had 30k miles when I put synthetic in it

Your Buick already had the leak issue, the problem was hidden by conventional oils high propensity to breakdown earlier than synthetic, so it stops cleaning and starts gumming up things with sludge. Switching to Syn just provided the engine with better lubrication and an oil that doesn't break down quickly like conventional, so it cleans longer, and it clears out sludge, finding the areas where a leak already existed, it was just plugged up.

Its an old bikers tail from the old Shovelhead owners, the Shovels base gaskets were paper based, so over time from all the expansion and contraction those gaskets developed cracks. The old 50wt straight conventional oils would break down quickly, deposit crud into the cracks and seal them up. Guys would switch to Syn and it wouldn't breakdown, it continued to clean up all that crud, and then would seep out through the existing plugged up hole/crack. And thus the "Synthetic causes Leaks" myth began, to add to the BS, Harley Dealers were selling HD 360 a conventional vtwin oil and HD didn't have a synthetic blend for them to sell, so they started losing big oil sales money. The aftermarket was killing it with Mobil 1 V-twin, Amsoil, etc. So Dealers started telling owners if you don't used HD 360 your warranty would be void (a federal law violation of the Magnusson Moss Act), lo and behold HD comes out a few years later with HD Syn3, and instantly synthetic was ok.


You could properly state that Synthetic exposed the leaks in that Buick, but it didn't cause them, poor assembly techniques, low tolerance machining, and basically being a GM with age, use, and the subsequent internal abuse created an environment where synthetic could expose the issues and fine its way out...

Dang I haven't had that "synthetic causes leaks" debate in over a decade from the old HTT forum LOL...

Go to bobistheoilguy.com and start a thread on that LOL, or just search, hundreds of them, all debunked by top oil experts...

There is no downside to synthetic oil (other than cost) and it offers some benefits, one of which is it holds up better at high temperature than conventional oil. Your bike is air/oil cooled meaning it utilizes two oil pumps, a high pressure/low volume one for lubrication, and a low pressure/high volume one for cooling the engine by flowing oil around the valves and hottest areas of the engine to carry away heat, so the oil does get pretty hot doing its job. Unlike most motorcycles your bike utilizes a dry clutch so special JASO MA2 motorcycle oil designed for wet clutches is not needed, but it won't hurt. I used Valvoline VR1 synthetic 20w-50 in my oilhead BMWs but any 20w-50 synthetic will work.

As far as the tank lining there are kits that you can purchase that include chemicals to help remove any remaining loose paint and another to "line" your tank. While I've heard of some having success with these I've heard a lot more who have had problems with the new liner breaking loose. Personally I would take the tank to a professional who has good experience doing this.

I can't help with your speaker connection question.

If you've got a hard bag, or other place to mount an amp, this one has 4x50w power, and blue tooth built in. On my sxs it hooked up the first time, and every time. Treat your self to new speakers too.

https://www.kenwood.com/usa/ca...rsports/kac-m5024bt/

I like synthetic in all engines that don't get used for part of the year like motorcycles and yard equipment. It doesn't degrade much with age so you don't have to automatically change it as you do with conventional.
I fill my mower up wit some Mobil 1 and go 3-4 summers between changes.

quote:

Originally posted by 08 Cayenne:

I have J&M powered speakers on the bike, their just as old as the bike. It uses a single pin adapter to plug into a portable CD player headphone jack. I want to play music from my ipod via bluetooth. Is there an adapter that can link them? The speaker pin to a bluetooth receiver of sorts.

So I suggested getting BT headset, which will connect to the phone, and a mount for the phone and use it to play tunes, gps, make phone calls with voice command from the BT headset with mic.

However it sounds like you want to have speakers that you can BT to for tunes. IIRC the R1200C doesn't have an infotainment/radio system.

Kuryakyn, now part of Rocky Tucker Industries, has a bike mounted BT speaker pod call the Road Thunder, it's weather resistant mounts to the bars, and they have seriously good sound.

This may be the best solution for an external sound system with BT, and Kuryakyn has a huge Harley customer base, if you can hear this over a HD V-twin you know it rocks pretty good.. LOL

Link to Amazon

When I was working for Amoco (remember them) I was given some specs on their synthetic. Impressive. I also noted the Porsche recommended Mobil 1 when I owned one. All that aside, clean oil works very well. I use synthetic in my cars but I wouldn't hesitate to switching back and do more frequent changes.

I have installed quite a few of the RoadThunder setups and they work great.

Do not switch oil.

I have four old bikes. Three Hondas between 1978-1982. I switched them all to Rotella T-6 synthetic without issue.

My 1977 Yamaha xs650 developed clutch chatter with T-6, so I’ve switched it back to conventional T-4. That’s the only time I’ve found conventional better than synthetic.

Thanks everyone for the advice. Will this work for connecting the speakers to bluetooth?

https://a.co/d/2j778gV

quote:

Originally posted by HRK:
Yeah, the old syn causes leaks was a HD Shovelhead era myth, those bike leaked even when they had no oil in them! Just glad we didn't hear the synthetic causes bearings to skate!

Switch it, get the right viscosity, I run Mobil 1 V-twin, engine is quieter and cooler, I also run it in the Primary which has the clutch, it's designed for gears, engine and clutch use on HD bikes, I would suggest talking to them, Amsoil and a few others about motorcycle oils for your model.

If you have a port there should be a BT adapter you can plug into it to listen, however, I would get BT headset for your helmet, then connect it to a BT device such as a smart phone and then you can stream songs from it, Pandora, Amazon Prime Music, Spotify, and go right around the radio, PLUS you can run Waze or Apple maps for your GPS routing and it will play through that same head set. Sena makes a good set, there are many others.

Link Sena

quote:

Originally posted by BigSwede:

quote:

You will not get leaks or anything of the kind.

Tell that to my 11 year old Buick Park Avenue that had 30k miles when I put synthetic in it

Your Buick already had the leak issue, the problem was hidden by conventional oils high propensity to breakdown earlier than synthetic, so it stops cleaning and starts gumming up things with sludge. Switching to Syn just provided the engine with better lubrication and an oil that doesn't break down quickly like conventional, so it cleans longer, and it clears out sludge, finding the areas where a leak already existed, it was just plugged up.

Its an old bikers tail from the old Shovelhead owners, the Shovels base gaskets were paper based, so over time from all the expansion and contraction those gaskets developed cracks. The old 50wt straight conventional oils would break down quickly, deposit crud into the cracks and seal them up. Guys would switch to Syn and it wouldn't breakdown, it continued to clean up all that crud, and then would seep out through the existing plugged up hole/crack. And thus the "Synthetic causes Leaks" myth began, to add to the BS, Harley Dealers were selling HD 360 a conventional vtwin oil and HD didn't have a synthetic blend for them to sell, so they started losing big oil sales money. The aftermarket was killing it with Mobil 1 V-twin, Amsoil, etc. So Dealers started telling owners if you don't used HD 360 your warranty would be void (a federal law violation of the Magnusson Moss Act), lo and behold HD comes out a few years later with HD Syn3, and instantly synthetic was ok.

I remember well the pre Syn3 days in Harley dealerships as I was working part time in one at that time. We didn’t play the “your warranty is void” game but we did caution customers to use a oil that was designed for air cooled engines, the correct weight and with the right additives. We used to have “know it alls” who would argue that “oil is oil as long as it’s the right weight” which is only a part of the equation.

I worked with one service manager who insisted that Amsoil would cause bearings to slide instead of roll. He didn’t last too long at that dealership either.

I still have one Shovelhead but I run Harley conventional 20W50 in it despite many “experts” telling me that you shouldn’t run multi grade oil in them. Guess I’ve been doing it wrong since ‘98 then…..

I don’t know when synthetic oil came out, but I remember always using regular HD oil in my 2006 Road King. At one point I asked a mechanic if I should switch and he said “no”. I can’t remember the reason why.

Anyway - still have the Road King and still use regular oil - change it once or twice a year, depending how much riding I’m doing. It now 60,000 miles on it and I haven’t done anything to it besides basic maintenance. I’ll change the oil every ~ 2500 miles.

MDS