Piston Broke

[Redboots]

It seems my motor is not well 2019 790 Adv.
Last Friday I was out for a ride and it seemed really noisy.
Next day, pressed the starter and loads of clacking and then nothing apart from a click from the starter.
Battery from 2019 so ordered a new one. LiFePO4.
Arrived today. Ain't they light! Fitted.
It turned it over with a bit of a struggle and started, sort of. Lots of noise. Kill-switch, quick!
Smoke coming from the air intake tubes

Loaded onto the trailer to take to the dealer on Tuesday (not open Mondays 'cos they open Saturdays).

I feel its going to be expensive

 

[tuftywhite]

Good luck. Look forward to the prognosis!

 

[dirtybiker]

Wonder if it’s dropped a valve. Symptoms as described would indicate something of that nature. Best of luck, hope you get it sorted without breaking the bank.

 

[Redboots]

hope you get it sorted without breaking the bank.

Me to!
I have seen complete (ish) motors for sale anywhere from 1700 to 3400 Euros.

 

[JohnnyBoxer]

It seems my motor is not well 2019 790 Adv.
Last Friday I was out for a ride and it seemed really noisy.
Next day, pressed the starter and loads of clacking and then nothing apart from a click from the starter.
Battery from 2019 so ordered a new one. LiFePO4.
Arrived today. Ain't they light! Fitted.
It turned it over with a bit of a struggle and started, sort of. Lots of noise. Kill-switch, quick!
Smoke coming from the air intake tubes

Loaded onto the trailer to take to the dealer on Tuesday (not open Mondays 'cos they open Saturdays).

I feel its going to be expensive

Maybe a worn cam
Very common in these it would appear if Facebook is anything to go by

 

[richh]

Made in China


Sent from my iPhone using Tapatalk

 

[Redboots]

Maybe a worn cam
Very common in these it would appear if Facebook is anything to go by

Possible, but I hadn't noticed any lack of power.
It was making a sort of tick/clack, the sort of noise you get from a blowing manifold gasket, but could find nothing.
Its only done 13500 kms. I bought it with 6k on it and I have changed the oil 3 times.
Nothing to see in the filter or screens or plug magnet.
I'm thinking cam chain tensioner and the chain having jumped a tooth or two. Can they really get that loose

 

[EVskiy]

Ouch, hope you get it sorted for not to many shillings.

 

[cookie]

Maybe a worn cam
Very common in these it would appear if Facebook is anything to go by

My first thought too.

https://www.ktmforum.co.uk/threads/790-890-failed-cams.1397462/#post-5961421

 

[JohnnyBoxer]

Possible, but I hadn't noticed any lack of power.
It was making a sort of tick/clack, the sort of noise you get from a blowing manifold gasket, but could find nothing.
Its only done 13500 kms. I bought it with 6k on it and I have changed the oil 3 times.
Nothing to see in the filter or screens or plug magnet.
I'm thinking cam chain tensioner and the chain having jumped a tooth or two. Can they really get that loose

13500km it would appear you are bang in the target parameters to go wrong

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[JohnnyBoxer]

 

[Redboots]

Mine's only done just over 8300 miles....

 

[parkys100]

Thank goodness for T700

 

[JohnnyBoxer]

Mine's only done just over 8300 miles....

Still time enough then

 

[parkys100]

Still time enough then

I was genuinely was looking into a swap to 890S 2023 model or a Nordon 901 but my piss would be boiling a £2.5 K repair bill.
I cannot comprehend how this could possibly happen a engine in this day and at that mileage with super super engine oils,
Maybe they are made of chocolate?
KTM response to an industry wide know problem ,absolutely diabolical? Maybe that’s why the 890 and 901 are cheap on 2nd hand market .

 

[JohnnyBoxer]

I was genuinely was looking into a swap to 890S 2023 model or a Nordon 901 but my piss would be boiling a £2.5 K repair bill.
I cannot comprehend how this could possibly happen a engine in this day and at that mileage with super super engine oils,
Maybe they are made of chocolate?
KTM response to an industry wide know problem ,absolutely diabolical? Maybe that’s why the 890 and 901 are cheap on 2nd hand market .

Maybe?

Exciting bikes ..............but kinda makes you not want the 'sting in the tail' of a repair bill

 

[Redboots]

I cannot comprehend how this could possibly happen a engine in this day and at that mileage with super super engine oils,
Maybe they are made of chocolate?

The early 790's came out of Austria. I assume they buy in the parts from wherever so it can only be porous quality control by either the manufacturer of the parts or KTM.

 

[Deleted account 250722001]

 

[Redboots]

Still on the trailer. To the dealer tomorrow.

 

[bod]

Still on the trailer. To the dealer tomorrow.

C'mon, give JB his happy ending!
He's been waiting to put a quick turn of speed in for 3 days now.