First start up!!

michipons

michipons

Hero member
Location
Palma de Mallorca
Hi!

Yesterday, my neighbour, the retired yacht mechanic who helps me restoring, had to go to the hospital due to a liver infection, so the idea was to wait him for the first start up. Today morning I wanted to leave everthing ready. Some oil on the valves. Engine oil. Fuel. check no oil or fuel leaks. Make the engine turn a bit without spark plugs....

Then I think, ok, just will give it a one second shot to the starter.

I couldn't hear the starter, after less than a turn, the engine was roaring!! adjust the mix a bit, the idles... and now it starts with just a touch of the starter 8) 8) I am so happy!

Here are the videos, one for the first start, second after couple of 100 meters. I can't make longer as still don't have the front master cylinder ready from the ceracoating. But the bike was smooth, and all gears entered smoothly.

By the way, i would like to take the chance to ask... How do I adjust best the primary chain tension? I don't really understand the green book procedure, and I can keep 3000 rpm and ajust at the same time as the book describes, because I am alone.

OF COURSE, a big big thank you to all of you, without your help, it wouldn't have been possible! It is an amazing community! I hope I can continue with the 1000 project and whatever come next!

Miguel

https://youtu.be/FdnYO2D-teY

https://youtu.be/RyPQT60w0ek
 
Lovely.

Which type of primary chain do you have Miguel? Twin single chains or a duplex need less tension than a triplex.
Tension the chains statically. A triplex around 1 turn out on the tensioner screw, 1,5 turns out for the other type of chains.

Paul
 
Paul Marx said:
Lovely.

Which type of primary chain do you have Miguel? Twin single chains or a duplex need less tension than a triplex.
Tension the chains statically. A triplex around 1 turn out on the tensioner screw, 1,5 turns out for the other type of chains.

Paul
Click to expand...

Hi Paul!
I have new Triplex chain.
Turns out from which position??
Miguel
 
Dear Miguel,
I think it is not so important but when you close the thottle and also before there is this huuuu. But if its all new in the engine I would have some kilometers and let the engine realy worm up. Then listen again and if there is still this huuuu I would loosen the chain tension until it is not there.
 
michipons said:
Hi Paul!
I have new Triplex chain.
Turns out from which position??
Miguel
Click to expand...

Tighten the tensioner fully in, with reason, hand tight and then back off one turn.

The main purpose of the tensioner is to stop the primary chain flapping about and keep clutch operation and gear selection smooth. Some of the endurance racers had no tensioner and chain was changed mid race.

There are certainly more problems with chains over tightened than not enough.

Paul
 
Hi Miguel. Think of it not as a tensioner, but an adjustable guide. You are not trying to add tightness to the chain, but to position the guide so the chain cannot flap about. Hand tight means the torque you can apply with 2 fingers on a screwdriver, not more, then back it out three quarters to 1 turn.  Make sure the adjusting screw moves freely otherwise (with your 2 fingers) you can't feel when the guide is starting to push against the chain.

The above with engine running.

HTH, Haggis
 
I do them without the engine running the way Paul does. You can always check if the whine is related to the chain by backing it off a bit while it is running as suggested (I don't know where 3000rpm came from, idle is fine) but I have always found that about a turn out is fine. If you have the cover off any time, you will see that one turn gives just a bit of slack, certainly doesn't flap around.
 
chrisk said:
I like the sound of an overly tight primary chain, not saying to do it, but it does sounds rather cool. Sort of has that supercharger whine.
Click to expand...

Sends bits off slipper material all over the place.

Paul
 
I have been playing around a bit and now should be adjusted the way you explain, tight woth two fingers until stops and then 1 turn out, it has no noise, on live you can?t hear it, but on the phone micro, it records still a bit pf this sound, don?t know where it comes from, maybe from the cam chain... but in live is not audible🤷🏼‍♂️ I guess is fine

Miguel
 
Great.
When you get to know the machine, you'll know when the chain needs tightening.
A new chain will need tensioning once or twice in the first few thousand kilometres and then, it won't change much.

Recorded or transmitted engine sound is of no value at all. You hear all sorts of things that don't exist or not hear things which do exist.

Paul
 
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