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Old 07-14-2018, 11:08 AM   #61
Rumbo Sur
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Originally Posted by augustiron View Post
I got to spend some time on my friends 17 450exc.

Biggest issue, I didn't like the vibes from the engine. It almost had a knocking quality that felt strange and uncomfortable.
Power delivery was great.

Other thing were fixable, like his suspension settings to harsh and unbalanced, seat was a piece of steel, but overall the bike felt a lot taller than my 07. I have an EE gel seat and pretty soft suspension and.my bike has been nicknamed the couch.

For the riding I do I want something "soft" in the seat and suspension. The 17 was very hard.

I think I could get it to my setup pretty easy, I would probably put AER forks on it and sell the Explor.

Or just keep blabbing about it and keep beating on my old workhorse.
Vibes? Hard seat? Sounds like you tested the 450 ON ROAD, not off. Off road most tend to be standing at least half the time, and going faster ... so suspension may work better. Also, off road, engine vibes are less apparent than street riding.

I think it's great your "old work Horse" is still kicking ... and maybe getting better. That's called "bang for the buck" but no Starbucks poser points.

All that Pick up coil and Stator none sense is total deal breaker for me ... and would never consider any of those Huskies for anything more than Day Rides with a pick up truck as the way in and out of riding area.

Sad part is that even if fixed with expensive new parts (Stator and PU coil) what's to say problem will not repeat itself in another 4 to 5 hours of use riding highway ... or anywhere?

Be thankful most of the issues on your old bike are "known" and many have been dealt with and are preventable.
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Old 07-14-2018, 11:16 AM   #62
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My buddy and I switched bikes for a several hour singletrack ride. The new generation sohc ktm vibes are a major knocking frequency from the engine through the bars, immediately noticable through the whole bike, I was shocked really. The seat? Yes, I use it occasionally, even on singletrack.
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Old 07-31-2018, 09:41 PM   #63
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Why no KTM 690/ Husqvarna 701?
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Old 07-31-2018, 09:51 PM   #64
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Why no KTM 690/ Husqvarna 701?
One word...trails
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Old 08-01-2018, 07:17 PM   #65
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One word...trails
Yup, a 500 is too much for my size/skill/comfort for a lot of what I ride
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"...had concerns of the motor dropping out, hence the safety chain."
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Old 08-02-2018, 06:20 AM   #66
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So the Beta 500 has this annoying "hanging" idle. I've heard others have this issue too it makes engine braking impossible.
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Old 08-02-2018, 06:49 AM   #67
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Thumper, ever find out what the problem was on the FI light issue?

Is the hanging idle just on 500s?
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"...had concerns of the motor dropping out, hence the safety chain."
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Last edited by augustiron; 08-02-2018 at 06:50 AM..
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Old 08-02-2018, 08:06 AM   #68
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It looks like the hanging idle shows up in he 430s as well as the 500s but I do not have this issue. The FI light may have something to do with an air leak. I know that initially we had a loose injector.
Dan at MotoXotica has been phenomanal in takin care of us.
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Old 08-02-2018, 04:18 PM   #69
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Originally Posted by augustiron View Post
My buddy and I switched bikes for a several hour singletrack ride. The new generation sohc ktm vibes are a major knocking frequency from the engine through the bars, immediately noticable through the whole bike, I was shocked really. The seat? Yes, I use it occasionally, even on singletrack.
It's my understanding that some of the 450's and 500's have a crank balance issue causing some vibration. Not the case in all of them.
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Old 08-02-2018, 08:55 PM   #70
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It's my understanding that some of the 450's and 500's have a crank balance issue causing some vibration. Not the case in all of them.
Can you link a couple of references to that? Pretty big eff up if real. I'd love to read more on it.
It did seem odd for a brand new 2017 engine to feel knockier than my 400 hr 2007 engine that is 2 generations older
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"...had concerns of the motor dropping out, hence the safety chain."
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Last edited by augustiron; 08-02-2018 at 08:58 PM..
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Old 08-02-2018, 10:11 PM   #71
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https://thumpertalk.com/forums/topic...ine-vibration/

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Old 08-03-2018, 08:34 AM   #72
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interesting

The conclusion was that most 500's (same engine as the 450) are smooth.
The poster had one like I felt that rattled his teeth and after numerous attempts at the local dealer that said it was ok, KTMNA said to replace the crankshaft under warranty on a newish bike.
I doubt I can convince my friend that he has a problem.
I did ride a new 2012 500exc back in the day and remember it being smooth, so smooth I nicknamed it the "velvet hammer", a name that stuck to it. Same basic engine as the knocky 2017 450
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Old 08-03-2018, 08:44 AM   #73
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interesting
... yes, had to search quite a bit to find anything ...

... been facinating to follow
KTM’s engineering development
of balanced 2T and 4T motors over the years ...
(640 paintshaker to velvet hammer, wow!)

... was hoping to find something
about design and manufacturing tolerance
issues with the new SOHC engines ... the math, etc ...
would make interesting reading,
especially if it talked about how (some) unbalanced
engines made it to the showroom floor ...

(here’s an interesting article
on balanced KTM 2Ts)
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Last edited by SFMCjohn; 08-03-2018 at 09:18 AM..
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Old 08-03-2018, 08:48 AM   #74
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I have my 501 in sumo mode and geared tall (15/45) and it's super smooth all the way to 70-75. If I want to maintain 80 mph it's slightly buzzy but bearable. I've had thoughts of swapping out for a 690/701 since I mostly ride my 2T on trails now but I'm not sure the 701 is that much smoother than the 501.
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Old 09-14-2018, 07:31 AM   #75
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Ugh, ok, I am starting to HATE the new FI bikes.

The 350exc that cooked the crank position sensor now lost its headlight, fan, signals, taillight.
But it runs fine.
Everything on fuse 3 and 4 is out. No power to either side of the fuse. All connections look good after going over them 8 times. Power and lighting relays are ok.

Why am I mad?
The schematic is 8 pages long.
The wires and connectors are so damn small and hard to test/check/fix.
There are a billion wires and sensors.
The circuits are convoluted, The light relay seems to be fed from the voltage regulator and the ecu?
The KTM diagnostic software is proprietary, if the ecu is the issue, I am SOL and wasting time. But I can't check it myself.
I am loving my simple, carbed no ecu bike.more and more.
I have spent 2 full days going over this. Next step is to cut the harness open as I have traced a circuit that is supposed to be continuous between 2 points but does not have continuity. White w/pink stripe at the ecu, to brown in sever al locations. Ugh.

Endrant
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"...had concerns of the motor dropping out, hence the safety chain."
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