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Discussion Starter · #1 ·
For days now it happens to me that when I start the bike in the morning with a cold engine, the bike is hard to appear. When it starts the number of revolutions is low and sometimes it goes out, it seems as if the automatic air does not start. After about 10/20 seconds the bike seems to wake up and the automatic air starts, the idle rises and everything stabilizes.
I wanted to know if you know what this could depend on and if anyone has found a solution. thank you
 

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For days now it happens to me that when I start the bike in the morning with a cold engine, the bike is hard to appear. When it starts the number of revolutions is low and sometimes it goes out, it seems as if the automatic air does not start. After about 10/20 seconds the bike seems to wake up and the automatic air starts, the idle rises and everything stabilizes.
I wanted to know if you know what this could depend on and if anyone has found a solution. thank you
Seems like I read about very similar problem over on Adventure Rider and YouTube had several clips on the KTM 790 etc doing same thing...
 

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Discussion Starter · #4 ·
Sembra di aver letto di problemi molto simili su Adventure Rider e YouTube aveva diverse clip sulla KTM 790 ecc. Facendo la stessa cosa ...
[/CITAZIONE]
grazie per il consiglio.
sembra che KTM abbia ammesso il problema e stia cercando una soluzione. A freddo la moto va con un solo cilindro e poi dopo qualche secondo parte il secondo. Non sono ancora riusciti a trovare una soluzione. alcuni usando una benzina con meno ottani (purtroppo in europa ci sono solo 95 ottani) l'hanno risolto. ktm sta cercando una soluzione (mappatura).
per ora l'unica soluzione che sto usando è dare un po' di gas mentre lo accendo per ridurre il tempo necessario all'avvio della seconda bombola.
Seems like I read about very similar problem over on Adventure Rider and YouTube had several clips on the KTM 790 etc doing same thing...
thanks for the tip.
it seems that KTM has admitted the problem and is looking for a solution. When cold the bike goes with only one cylinder and then after a few seconds the second starts. They still haven't been able to find a solution. some using a petrol with less octane (unfortunately there is only 95 octane in europe) have solved it. ktm is looking for a solution (mapping).
for now the only solution I am using is to give a little gas while I turn it on in order to reduce the time necessary for the second cylinder to start.
 

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My Norden 901 has this same issue. I smell a heavier fuel odor during the low revs, Sometimes I hear a pop, like a backfire sound and then it all revs up as it should. I don't recall this problem on the 790. I informed the dealership tech manager and he said KTM is aware of this and they have not provided any recall or corrective action via service letter. I have been running the higher octane, I may try the lower to see if it improves, but this all seems wrong that it happens.
 

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Discussion Starter · #6 ·
[CITAZIONE="bababang, post: 875, membro: 397"]
Il mio Norden 901 ha lo stesso problema. Sento un odore di carburante più pesante durante i bassi regimi, a volte sento uno schiocco, come un suono di ritorno di fiamma e poi tutto aumenta di giri come dovrebbe. Non ricordo questo problema sul 790. Ho informato il responsabile tecnico della concessionaria e ha detto che KTM ne è a conoscenza e non hanno fornito alcun richiamo o azione correttiva tramite lettera di servizio. Ho eseguito l'ottano più alto, potrei provare quello più basso per vedere se migliora, ma tutto ciò sembra sbagliato che succeda.
[/CITAZIONE]
My Norden 901 has this same issue. I smell a heavier fuel odor during the low revs, Sometimes I hear a pop, like a backfire sound and then it all revs up as it should. I don't recall this problem on the 790. I informed the dealership tech manager and he said KTM is aware of this and they have not provided any recall or corrective action via service letter. I have been running the higher octane, I may try the lower to see if it improves, but this all seems wrong that it happens.
exactly yours also has the same problem ... it goes to a cylinder ... when the second starts you hear the irregular bangs and then it stabilizes.
we have to put pressure on Ktm otherwise they won't solve it!
 

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thanks for the tip.
it seems that KTM has admitted the problem and is looking for a solution. When cold the bike goes with only one cylinder and then after a few seconds the second starts. They still haven't been able to find a solution. some using a petrol with less octane (unfortunately there is only 95 octane in europe) have solved it. ktm is looking for a solution (mapping).
for now the only solution I am using is to give a little gas while I turn it on in order to reduce the time necessary for the second cylinder to start.
Man this is an old problem, think would have it worked out by now...
 

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For days now it happens to me that when I start the bike in the morning with a cold engine, the bike is hard to appear. When it starts the number of revolutions is low and sometimes it goes out, it seems as if the automatic air does not start. After about 10/20 seconds the bike seems to wake up and the automatic air starts, the idle rises and everything stabilizes.
I wanted to know if you know what this could depend on and if anyone has found a solution. thank you
I have this exact problem with my Norden! Please let us know if there is a solution.
 

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Husqvarna 901 Norden + KTM 790 adv. R.
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Ahoj.
Som mal podobný problém zo studeným štartom na KTM 790 adv. R. Studený sa prejavil tak, že motor naskočil po zhruba 2 otáčkach, no bežal len 2-3 sekundy potom zhasol.
Takto sa to zopakovalo aj po ďalšom štarte. Moto začal štartovať a držal voľnobeh až na 3 pokus. Preto, že v EU je 95 oktnové palivo a je tam 10% alkoholu,
tankujem 98 -100 oktan, tam je len 5% alkoholu.
Teraz používam vychytávku, ktorú som sa dočítal na nejakom fóre, funguje na KTM 790 adv.
Aplikujem aj na Norden 901 a zatiaľ je to dobré.
Tak urobte pri studenom štarte takúto procedúru a malo by to ísť.
1. / Zapnite kľúčik zapaľovania a nechajte cyklovať čerpadlo. (bzučanie 2 - 3 sekundy), motocykel potom ešte vydáva pískajúci tón asi 10 sekúnd.
2. / Keď pískajúci tón skončí, zatiahnete za plyn a držte asi 5 - 10 sekúnd, čím sa opäť spustí pískajúci tón.
3. / Uvoľnite plyn.
4./ Hneď naštartujte motor.
5. / A super štartuje ako má.
Mne to zatiaľ funguje na KTM aj Husqvarne.
 

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Thanks for your post. English translation:

Hi.
I had a similar problem with a cold start on the KTM 790 adv. R. Studený manifested himself in such a way that the engine started after about 2 revolutions, but it only ran for 2-3 seconds and then went out.
This was repeated after the next start. Moto started and held idle until 3 tries. Because there is 95 octane fuel in the EU and 10% alcohol,
I refuel 98 -100 octane, there is only 5% alcohol.
Now I'm using a tweak that I read on some forum, it works on KTM 790 adv.
I also apply to the Norden 901 and so far it's good.
So do a cold start like this and it should work.
1. / Turn on the ignition key and let the pump cycle. (buzzing for 2-3 seconds), the motorcycle then still emits a whistling tone for about 10 seconds.
2. / When the whistling tone ends, pull the throttle and hold for about 5-10 seconds to start the whistling tone again.
3. / Release the throttle.
4. / Start the engine immediately.
5. / And super starts as it should.
So far, it works for me at KTM and Husqvarna.
 

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Thanks for your post. English translation:

Hi.
I had a similar problem with a cold start on the KTM 790 adv. R. Studený manifested himself in such a way that the engine started after about 2 revolutions, but it only ran for 2-3 seconds and then went out.
This was repeated after the next start. Moto started and held idle until 3 tries. Because there is 95 octane fuel in the EU and 10% alcohol,
I refuel 98 -100 octane, there is only 5% alcohol.
Now I'm using a tweak that I read on some forum, it works on KTM 790 adv.
I also apply to the Norden 901 and so far it's good.
So do a cold start like this and it should work.
1. / Turn on the ignition key and let the pump cycle. (buzzing for 2-3 seconds), the motorcycle then still emits a whistling tone for about 10 seconds.
2. / When the whistling tone ends, pull the throttle and hold for about 5-10 seconds to start the whistling tone again.
3. / Release the throttle.
4. / Start the engine immediately.
5. / And super starts as it should.
So far, it works for me at KTM and Husqvarna.
Thank you I’ll give it a try!
 

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Discussion Starter · #15 ·
I took the bike to do the 1000 km service. I obviously submitted the problem of cold ignition to the mechanic. Luck would have it that he himself was the owner of a ktm 890 that suffered from the same problem! he told me that after numerous attempts at remapping of all kinds he solved it simply by changing the petrol station. in fact I also always went to the same petrol station (Agip petrol station) I changed the petrol station now I use ESSO petrol. it will be a coincidence but it is already the second full that I do, it is now more than 15 days that I no longer have problems with cold ignition !! Try it t
 
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