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Discussion Starter #1
Hi, I need some urgent help to set my crank timing and valve timing, however I need someone that can take me step by step through this whole process as I have no idea to do it. I already stripped of everything that I am suppose to. I will be sincerely grateful if there is someone on this forum that can assist me. I thank you in advance.
Happy and safe riding
Johano_Oo_O
 

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Welcome to The Forum Johan!

Setting the crank/valve timing is really a hands-on task. It would be difficult to 'walk you through it' without writing a book and posting a lot of photos. Oh wait, how about let's use the service manual? I'm not being smart here. It's just that the manual is the best resource that you can access, especially now with the covid-19 lockdown. Granted, the V-Twin is a little more complicated than an inline-4, but if you got this far in tearing it down, you likely have the ability to get it back together - with a little direction.

For starters, read through the service manual, and pay particular attention to section 3. Then post up specific questions for the Forum to address, and you will get through this. Also, please post up some photos of what you have right now, so we can see what you are starting with.

Why did you tear the engine down to begin with?
 

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Discussion Starter #3
In the first place I did not tear the engine down,the bike wouldn't start, backfiring through the exhaust, talking to friends and were told that it was a timing issue, so for your information so it is very clear to you I took of the fearing and the tank because that is the only way to get to the valve covers to check the timing once I get assistance. Furthermore, I did down load the manual from this specific site however for a person that has never done this before all does not make sense a I am not a qualified TL1000 bike mechanic. I did read about white markings on the cam shafts but did not see any where how to check if the previous persons did it correctly. All I am asking is some guidance on tdc for piston 1 and the valve timing for that situation and the tdc for piston 2 and the valve timing marks for that situation and where the marks should be.
If you can assist me I will be grateful.
Thanks
 

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Johan, it sounds like I ruffled some feathers. That was unintended. My apologies. 😒

I got the impression from your initial post that you were more deeply involved than you are. Apparently, you are merely checking the timing, and not reassembling the engine. That's good.

Backfiring through the exhaust it's not always a timing issue, but if the bike is new to you it wouldn't hurt to check - for your own peace of mind.

The manual is actually quite good concerning the cam timing. It provides a lot of detail that would be difficult to describe/post in a forum. On pages 3-64-3-73, the cam timing is described. So then, it would be helpful if you rotate your engine manually through the sequences and see how things line up with the diagrams in the manual. Then let us know what you find, good or bad.

True, the white markings may no longer be visible, but the engraved and embossed markings should be there, but sometimes they are very light.
 

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Discussion Starter #5
Thank you my friend and your apology accepted, I did take the time and went through the manual and it made it clear to me where to have tdc on the crank and where the markings should be on the cam shafts. I am going to spend time on it my morning and will check piston, take photos and the rotate as per the manual and do piston 2 with photos. Should I find that something does not look ok I will definitely post the pics on the site for you.
Once again
Thank you very much
Johan
 

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Hi Johan, just an observation from reading your problem description. Backfiring through the exhaust on these bikes is often attributed to a missing or worn spacer in the rear exhaust link, many people on the TL Facebook pages have experienced this, I haven't personally though.
For the inexperienced, valve timing is not the place to start playing around, you will do some serious, permanent damage. I understand you might just be taking a look but I'd start my looking with manual diagrams rather than your actual engine, mistakes can be expensive.
An indicator of this spacer being worn or missing will be carbon on the frame and linkages near this rear link pipe.
 

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Reading your comment again I note that the bike won't start. Have you owned it long?
Was it running fine and then just started doing this?
It's not common for a chain to jump a tooth but can happen if the chain and tensioner is worn.
What's the mileage on the bike?
 

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Discussion Starter #8
Good day buddy, sorry for only replaying back to you now, to be quite honest, I have lost interest in the bike and I shouldn't however let me answer your questions: I bought the bike as a non runner completely assembled and very beautiful, was told the engine was rebuild by some specialists in SA. The first time I tried to start the bike it kept on backfiring through the exhaust, check the spark and noticed that the motor spark and then the spark disappear, took it in to a friend of mine and he checked all my wiring and 8 months down the line the bike still wouldn't start, I thought that it must be timing, so I checked the manual and saw what to d. I took off the cam covers, opened the inspection hole on the crank case, set the T/F mark with piston no 1 at tdc, then the manual calls for one rotation back to the T/F mark to check the cam timing on piston no 2. All the markings lined up and that is where I am.
I will appreciate all the help I can get to repair my bike as she is a very nice bike, please if I may ask, I am not so familiar with all the technical names of parts and where they are situated, I can refer to the manual, no problem.
Once again thank you for the assistance, much appreciated.
Have yourself a lovely and safe day.
Regards
Johan
 

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Hi Johan, that makes more sense that the bike was not running when you bought it, as jumping a tooth is rather uncommon on your average street bike/car, unless you have very worn chains or worn guides and failing tensioners.
It is possible that it was assembled with the timing incorrectly set, and since each cam is gear driven from the chain driven cam drive gear, it is entirely possible that 1 of them is off a tooth.
In your checking, are you turning the engine clockwise or anti-clockwise to locate the markings?
You mentioned that the markings are lining up but if you turn the wrong way you are taking up slack in the chain that will result in incorrect settings.
My background is as a car mechanic many years ago, I've done a lot of timing chains, belts, guides and tensioners and have even put the odd one together a tooth out, they normally run pretty rough and backfire as you say your TL is.

The manual is pretty good at explaining how to set the timing, and this engine has very good marking indicators.
I think it is a matter of going over the process very carefully and slowly, ensuring you are viewing the engine in the same aspect as the drawings provided.
As mentioned by Six5, this is really a hands on process, it is difficult to cover in a few posts in a forum.

It's firing so you're half way there.
Good luck with it.
 
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