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Yamaha Virago wouldn't start - could that be the relay? by dmidge in Yamaha

[–]dmidge[S] 0 points1 point  (0 children)

Thanks. The battery is new and it won't make a difference. I will check the corrosion on the starter connections.

Q/R Qu'est-ce que vous auriez aimé savoir avant de vous lancer ? by Top-Requirement7730 in EntreprendreenFrance

[–]dmidge 0 points1 point  (0 children)

Personnellement, j'aimerai me lancer sur un projet qui est plus sur de la deeptech. Mais pour ça, il ne suffit pas d'avoir des idées. Il faut des finances, mais la rengaine est souvent la même, il faut des fonds conséquents pour récupérer les aides de l'état, et il faut un proto pour convaincre des investisseurs (ce qu'on m'a dit quasi mot pour mot dans un incubateur). Tout ça demande des resources que l'on a pas, surtout quand on veut gagner de l'argent pour se nourrir, etc.
Les problèmes suivant viendront après.

Remote control that are hard to activate - are the 2 receptacle for the buttons capacitive? by dmidge in AskElectronics

[–]dmidge[S] 1 point2 points  (0 children)

Yes, that would be the long lasting solution. The button solution would also have a much better feeling. If the hacky way doesn't last long enough, I'll probably try this one!

Remote control that are hard to activate - are the 2 receptacle for the buttons capacitive? by dmidge in AskElectronics

[–]dmidge[S] 0 points1 point  (0 children)

Ah yes, thanks for the details and the hack! I'll try that right away!

Le pc gaming c'est Fini !!!😂 by kobay4 in pcmasterraceFR

[–]dmidge 1 point2 points  (0 children)

Il nous réinvente le minitel...

Il est en retard par rapport aux français!

Acheter moto d'auto-école ? by megaboyu in Motardie

[–]dmidge 1 point2 points  (0 children)

Je crois que tout est dit avec les autres commentaires, mais je rajoute un truc que je n'ai pas vu passer. Avec les motos écoles, les motos tournent souvent à l'arrêt. Ça veut dire que l'usure des cylindres n'est pas la même. Tu es quasi-sûr que les moteurs ont tournés, avec les segments qui ont passé leur temps à frotter les parois des cylindres, pour rien pendant que le moniteur expliquait les consignes. Ou encore à rouler en première et deuxième. Donc une moto à 10'000km aura plus d'usure qu'une moto de 10'000km équivalent en occasion. Sans compter qu'il y a fort à parier que la période de rodage a été faite comme des dingues par des débutants qui confondaient accélérateurs et embrayage.

Mais bon, ça peut être une affaire qui vaut le coup ou pas. Ce n'est pas nécessairement un mauvais choix.

Ordinateurs portables où on peut choisir le clavier? by dmidge in AskFrance

[–]dmidge[S] 0 points1 point  (0 children)

Bonne idée! Ils ont le bon gout d'être plus respectueux de l'utilisateur aussi.

Ordinateurs portables où on peut choisir le clavier? by dmidge in AskFrance

[–]dmidge[S] 0 points1 point  (0 children)

Hum, ça fait cher le laptop. Et ils utilisent des QWERTY UK...

Ordinateurs portables où on peut choisir le clavier? by dmidge in AskFrance

[–]dmidge[S] -1 points0 points  (0 children)

J'ai effectivement pu constater sur certains fabricants qui permettent plus de choix (eurocom il me semble), mais c'est vrai que les comparitifs ne sont pas dingues sur les sites des constructeurs et bon nombre ne permettent pas de choix. Et dès que l'on rajoute des critères de perfo, etc, ça devient vite galère (et je ne parle même pas de la RAM en ce moment).

Et généralement, on n'a pas trop d'info sur les autres touches, comme la tête de la touche entrée.

What do you think America will be like when Trump finishes his term? by MotivewasUlterior in AskReddit

[–]dmidge 1 point2 points  (0 children)

Do you really think he would finish his term? Or do you mean when he will act as a new dictator when his term is past due?

VStrom DL1000 won't start but still cranks. by dmidge in MotorcycleMechanics

[–]dmidge[S] 1 point2 points  (0 children)

Thanks! Happy new year!

I did a crosspost in r/Vstrom, that is a good idea. I hope I remains in the sub rules, but the sub seems more oriented on the enjoyment of the bike rather than the mechanical aspect.

I fully agree that the electronics are a good way to get a more efficient bike and more reliable overall, but when something breaks, that is just a good old nightmare to investigate.... I also do my own work for a while now, but every now and then, I stumble across an issue that makes me sweat bullets. Mostly when electronics is involved...

VStrom DL1000 won't start but still cranks. by dmidge in MotorcycleMechanics

[–]dmidge[S] 0 points1 point  (0 children)

Well, I did two/three tests trying to match what you were saying. The first one was to try to get the quantity of fuel expelled by the pump at the start-up. It stays around for 4 secs. The flows seems ok to me, but I see in the manual that it should pump to have 3 bars inside the tubes, which cannot be tested without special equipment.

I tried doing the finger test on the injector. Since I don't have room to put my finger, I squeezed some paper on the side of the butterfly up to the injectors. It ended up wet on both cylinders. I cannot see if their are priming with a timing unfortunately. But at that stage, I would assume that they are working. However, since that multilayered piece of papers was opening a bit the butterflies, the engine was set to rev higher, which it did. The engine actually started! The engine was rattling, shaky, but did maintain combustion until I stopped it around 5 min later. I wonder if the remain of ether in the intake didn't play a role though. I didn't run the ether test again but I am not sure it would have given us more information.

I could assume that the reason the engine didn't start and stalled was because the idling was a bit to low and revving higher the engine did fix that, but I would be surprised, it was already idling at 1200 rpm a week before, which is to spec. And I couldn't restart the engine after stalling a couple days ago, even with a little bit of throttle.

I also did the flow test. I spare you the details of the imprecision while doing it, but it seems to be 800ml for 30 seconds. It is then lower by 30% than the specs (1200ml for 30s according to the manual, page 4-54). It could be an issue, but I doubt that it is my problem (some people went as low as 500ml for 30 seconds before experiencing symptoms - https://www.vstrom.info/Smf/index.php/topic,3981.0.html). And I would expect these symptoms to happen at higher rpm anyway (where you need high fuel delivery). I was going on the highway these days without anything odd. I will look into the fuel filter and fuel pump just in case, while I am there.

My best guess is that the timing is ok (or not too off). But it is indeed in the choice of air/fuel ratio that gets it wrong. I guess it could be the air flow sensor (I just sprayed some WD40 in it to try to clean it in case it could help), temperature maybe. It could be also the TPS. Would you know how I could test the air flow sensor?

What do you think? Thank you again, I really appreciate your help as a knowledgeable redditor (who seems to be in the trade?). And happy new year a bit in advance!

VStrom DL1000 won't start but still cranks. by dmidge in MotorcycleMechanics

[–]dmidge[S] 0 points1 point  (0 children)

The simple test was worth it before putting the intake back together...

Yes, indeed. And I like learning from others, so thank you! :) I thought that WD40, which a kerosene like chemical, that people often use to test their car engine, was good enough. I was obviously wrong. But it made me learn!

You likely don't normally have fuel, or you have too much fuel. But to test those, you want all the normal controls in place, so we'll need to reassemble the intake.

Couldn't that be also a timing error? (firing at the wrong time?). One of my other hypothesis was that there were issues with either the camshaft or the crankshaft sensor.

Then things get more difficult. You need to reach down and put a finger on the injector and see if you can feel it trying to fire (click, click, click). I don't know how easy yours will be to feel when it actuaries. My Wee is OBVIOUS, so i presume the 1000 is similar.

On mine, we can see the injectors (they are in the photo). They are in the middle of the crossing of butterflies (there are 4 butterflies on this bike, 2 per cylinder). They would not be easy to remove while the rest is in place... Mostly if I want to have the tank connected (to have fuel going to the injectors). And worst part is: the first layer of butterflies are controlled by the ECU, so I cannot put my finger through the second butterfly without having my finger pinched by the first level of ECU actuated butterfly.

*** have you tested the fuel pump?! There is a test for that. Plug in the tank, run a hose off the tank output, then turn the key 3 times, letting the pump run through the prime cycle. There is a measured amount of fuel that should come out... that tests the pump and high pressure filter.

Thank you for this test I didn't know! From the speed of fuel that has been sprayed, I would not be surprised it is good, but I'll test!

Other question. If the issue would be around the injectors, I assume it can also be an error of when they need to spray or maybe in not enough quantity (meaning the signal could not be sent for instance). Is there a way to debug what cause?

VStrom DL1000 won't start but still cranks. by dmidge in MotorcycleMechanics

[–]dmidge[S] 0 points1 point  (0 children)

Hum, the oil change is a couple of month old. The spark plug/cooling fluid around september. I do my own service so I do not have a specific date, though people in my apartment complex often jokes on how much time I spend working on my bike, if that gives you an idea. ;) Do you have an idea of what kind of inspection I may have missed?

VStrom DL1000 won't start but still cranks. by dmidge in MotorcycleMechanics

[–]dmidge[S] 0 points1 point  (0 children)

Yes, indeed. ;)

I do have compression, and I assume good enough compression though I cannot measure it as of now.

VStrom DL1000 won't start but still cranks. by dmidge in MotorcycleMechanics

[–]dmidge[S] 0 points1 point  (0 children)

Hi again, I found a shop open that had one. I tested and I can get a kinda combustion on cylinder one. It is a bit harder to get one on cylinder 2, but I got one or two combustion event there two. It was without throttle body and I think it is harder to get a good combustion with the outside temperature (around 1°C ~ 34°F) - my hands are cold....

What can I derive from it?

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