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No mate, you haven't missed a thing I just have been busy with other projects There will be a follow up video, I just don't know when

@@Lorddxt Looking forward to it. Thanks for the reply 👍🏻

Nope, not if it has to be a proper sync You can get it somewhat ok, but not perfect without having the yics blanched off (well you can get lucky)

@@Lorddxt That´s exactly my thoughts even though many seem to argue the opposite. Does not make any sense that Yamaha would put in the resources and efforts to make this tool if it isn´t needed

@FrankyBmagic correct I actually accidently forgot to use the tool once, and didn't realize it until I was going to remove the tool (that wasn't there) sync looked 100% Inserted the tool, and they were only synced to approx 90% Engine sounded ok, but was running better and smoother after a resync with the blocking tool

You can find me on Facebook Erik Brun Hansen I live in Denmark

No power steering unfortunately, as it is a loader tractor

Thanks mate. Then it is unfortunate that I haven't have the time to disable the bottom end yet.

It usually fires right up. After a longer stand still, I flip the fuel tap to PRI to prime the carburettors, wait about a minute, full choke, and usually it starts within a few seconds

There are several reasons the carburettors get out of sync Uneven engine wear, so each cylinder doesn't make the exact same amount of vacuum as the other cylinders Valve adjustment, which effects valve duration, which again affect cylinder vacuum Carburettor wear Changes in airflow - new Vs dirty air filter or micro leaks So no you can't avoid the carburettor from slowly getting out of sync, but the better you maintain your bike, usually less adjustment are required

​@@Lorddxt Thank you for all this information! I also have a 1984 XJ900F that I purchased last year. Came with a swapped engine but 100% original and museum registered. Sorry to keep asking but how do you notice that they are out of sync? =D Ordered this manual yesterday, seemed to have great reviews: Yamaha XJ900F Fours 1983-1994 (Haynes Manuals)

Usually you don't notice, because it happens gradually over thousands of km / miles. But over time the bike just doesn't run as sweet as it used to do. If you follow the service chart, you will check the valve clearance for each 12.000 km / 8.000 miles, and after a valve adjustment, you should balance / sync your carburettors

@@Lorddxt Hello again sir! In the "Haynes Service & Repair" manual it states that the carburetor synchronization should be done every 6000km or 6 months. The more often the better I assume but what is your opinion on this?

I usually synchronize my carburettor as a part of the service I give it every time I change the oil. Which is usually less than the 6000 km stated in the Haynes manual. But if I were to pay a shop to do it, I would likely follow the Haynes suggests 6000 or once a year

That's my plan But at the moment I think you are going to wait a little while, as I have promised to do some work for others, and that just comes first But as said, it is my plan to document the whole process, incl upgrading the 750 to 850

@@Lorddxt Well, I’m quite a way off too. At the moment I’m concentrating on the frame and the wire wheel conversion!

Hi. Yes I have started pulling my 1991 XJ909F apart. I’ve ditched the fairing, loads of fittings and cut the rear frame loop off. I’ve just had two XVS650 Dragstar wire wheel rear hubs converted to take extra 17mm inside diameter bearings. I say two, because I’ve acquired a 1990 XJ as well! Lots to do, and I’ll start a video soon. The thing is these projects take quite a while, so there may be a gap between video posts. I think it’s going to be an interesting project, and judging by the amount of money I’m spending, expensive!

Thank you The mounting brackets for the Krauser were 2/3 made by me, only the lover bracket that attach to the passenger foot pegs were there when I bought the set. Let me know if you want to see it anyway

Yes please Eric. Mine are top shock mount, indicator and then it looks like into the plastic mudguard which must be wrong. Seeing yours will give me an alternative view. Many thanks, I love the bike!

@@johncoxon1988 if you look me up on Facebook, and send me a private message, I take a few pictures and send to you Note. As far as I know I'm the only "Erik Brun Hansen" spelled exactly like that 😉

Well it recorded with a handheld mobile phone, so you can't expect Hi-fi sound quality

A blanking tool is a special tool to block the Yamaha YICS passage, so you can properly adjust each carburettor without having the others interfere

@@Lorddxt do you have a link where to get it? I have to do the same to my XJ 900 after the valve clearance

@@robertogilbert3036 www.cmsnl.com/products/yics-shut-tool_9089004068/

Nope. You are wrong. This is the way I was taught both by my master and at mechanic school. You defensively always want the balancing done first, before adjusting til idle mixture.

Hej Carsten Har først lige set din kommentar Jeg bor lidt udenfor Ølgod ved Varde

I think you are right, and the 4'th cylinder comes on after the restart. It does that sometimes if left for a longer period, starts on 3, and then after a couple of seconds runs on all 4

Well the video clip was recorded a year ago, and the car now has 468.000 km on it, so last year it would have had somewhere between 440.000 - 450.000 km on it

No, but it is really easy to add to a small digital voltmeter to the instrument cluster

Ja, den hæver lige luftstrømmen nok til at jeg ikke sidder med hovedet i slipstrømmen fra kåben. Jeg kan mærke tydelig forskel på om den er slået ned eller op 😉

why the clutch? he was shifting normally...

@@MrZan013 that not normally its a powershifting

It is a good strong engine My engine has 450000 km on it 💪

I think you have to buy the complete needle valve assembly to get the o-ring 🤔 Part no 19. www.cmsnl.com/yamaha-xj900f-1991-4bb1-europe-214bb-300e1_model38004/partslist/0011.html#.XSHN8dlJE0M

My xj is from 84 and with choke lever on the left handlebar. It can be pulled to almost any choke setting I want. Note: I do have a choke pull knob on the carburettors as well because I have a newer type carburettors installed on my bike

I don't know why some people would do that. But touching the exhaust doesn't prove that the engine is cold eighter, only that it had been running within the last 5 or 10 minutes.

John McIntire it is a Yamaha tool, so your local Yamaha dealer, or maybe eBay.

Is your oil level way high on the dipstick? Mine did that because It was leaking diesel into the crankcase

@@jesselawson1169 No thanks, guess it is the cylinder seals. I cleaned my clogged pan filter mesh. Soon to restart.

It is absolutely true, and only people who have restored their own bike can have this very feeling... And more and more people do it, which is good!