Posts
21
Joined
8/1/2019
Location
Winter Garden, FL, USA
Edited Date/Time
11/3/2020 9:22pm
As the title says I have a new 2020 KTM 350sxf that seems a lot louder than my 2018 or any of my KTM 450's. The bike seems to run well and does what is should but its engine noise is noticeable. I have more than a few friends make comments about this. I'm planning on a trip to the dealer but I'm afraid unless its broken they won't be able to do much. The bike has about 3.8 hours on it. What should I look at or test? Thank you
Paw Paw
Obviously if it's crazy loud or abnormal, check;
Valves
Cam chain (but isn't KTM auto hydro adjusted?)
oil level
oil delivery to the top end
When does yours make noise?
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Still has plenty of power, runs well, sounds ok.
http://www.cyclebuy.com/shopping/dirttricks/tensioner.htm
I've noticed on my 2020 FC350 that the excess noise from apparent lack of chain tension happens almost always if the bike is good and warm and I shut it off for just a few seconds or a minute or so to stop at the side of the track and then restart it. If I let the bike cool down for 20-30 minutes between motos it doesn't do it on the next start up.
I just bought one of these new Nihilo manual tensioners . I guess this is their Gen-2 version. The Gen-1 version required you to tap the stock oil jet and thread in a plug but this one does not.
Question: Can the stock tensioner be removed from the head on the bike? It's pretty close to the frame and looks like you might not have the clearance to get it out of there.
will come out
take allen cover off first, then outer housing tensioner will want to follow
use something to go through and hold tensioner back inside and remove outer piece
then tensioner will clear coming out
Did the tensioner fix the problem? Mine makes the same noise even with a dirt tricks tensioner.
Does the noise improve after the bike is warmed up? Can you post a video?
It makes the sloppy cam chain noise only when it’s hot. If I turn it off when it’s hot then start it up, it’s noisy for around 10 seconds consistently.
Yes, that is exactly what mine was doing and the manual tensioner fixed it. It also makes the bike feel a little faster, freer revving. I assume there is less drag on the chain than the stock one. 10-secs is excessive. Mine was only doing it for about 3 secs or so. How many hours are on your engine?
I only have about 50 hrs. It didn’t start doing this until I put on the 366 cylinder and sxf cams. Looks like I’ll be ordering a Nihilo cam chain tensioner. Thanks for the help.
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