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Yes, I hate the engine - f800 GSA 2017

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13K views 47 replies 19 participants last post by  Daboo  
#1 ·
Well, when I bought it had a Two Bros exhaust on it and I figured I could quite it down and it wasn't the best engine, but it would work. Since then I have bought the Two Bros restrictor (35.00) and that was still to loud so I pulled it (only 400 miles on it) and put on the stock muffler. That just draws my attention to the absolutely ridicules vibration the engine puts out above 4k.
So am I trying to cover up engine flaws, yes. But what else can I do? The engine acts like a tractor engine. it has bad vibs that start at 3500 rpm and get COMPLETELY annoying at 4k and up. Beats me why they couldn't make a twin without all the vib issues.

Yes I have geared it up in front and sown in back. I have the highest gearing you can put on the bike just to get a lower rev at hwy speeds. And yes I know I am sacrificing the low end on dirt (not happy about that but you have to get to the dirt).

I have read the post on the guy that altered his stock muffler but no one around here will take that on. And again, not sure that would not just cover up the boring vibrating engine by letting me hear some music (not looking for noise, just a distraction). I have also listened to other mufflers, but 800.00 for a slip on, ridicules. But again, IT IS NOT THE EXHAUST, it is the bad engine vibs!!!

What can I guy do to get the motor to rev more freely and not shake you off the bike.

Has the bike been to a shop for the first service - Yes. So it is not an uncommon engine issue. it is just a boring reving vibrating design mess.

Am I looking to sell it, wish I could, but the loss is not in my books. I have to live with my decision. Am I looking to sell the carbon black Two Bros exhaust, YOU BET. Or trade it. Would I try to get my stock muffler altered, yes if the service becomes available(please someone start doing this). If only to get my mine off the motor. But what it really needs is a redesign and I am not sure anything that can be done on the outside will solve the problem.

Note - I have a R9t, a KGT1200, a Buell (HD motor), a Honda CB550 and a Honda T110. And the Honda T110 is the only one that comes close to putting out vibrations as bad and it still would have to get twice as bad to equal the F800GSA (2017)

Has anyone one out there been able to get the motor to rev smoothly over 3500 - 4000? What did it take? [:(!]
 
#37 ·
to my knowledge the rims were changed, back was raised up a bit, kickstand increased, and some aesthetics. Wasn't sure if there were any engine tweaks but I guess not.
My Sprint was a similar type bike but was 30-35 lbs. heavier so I'm sort of okay with the weight, but you do have to wrestle with it sometimes.
It's a great bike. Too bad they have discontinued it.
 
#38 ·
yes, the K1300S was probably the best BMW I've owned, not really better than the R1100RS, but different. in some ways those bikes were similar, but the engine makes the difference, the K engine is amazing, I liked the boxer engine very much, but the four cylinders was surely much better.
 
#39 ·
As you know I hated my R1200RS and traded it back 3 1/2 months after buying it. I could not stand the boxer. On the GS it made sense, on the RS it just wasn't sporty enough and was boring. The K1300 handles very similarly but that engine makes a world of a difference. I do not like twins all that much in general. I like the DUcati L-Twin and that's about it.

Which brings us back to the point of the thread: a parallel twin, especially of a lower displacement, will never not be buzzy. Some people don't mind it, other's can't stand it. I could not tolerate my F800GT, but I was okay with my F800GS because it could go offroad and that engine really lent itself to that kind of riding. It is not a great street engine however.
when it comes to the street the more cylinders the better. When it comes to the dirt the fewer cylinders the better. That's why race bikes have I-4s and true dirt bikes have singles (except for the Panigale which is being revised to a V-4).
 
#40 ·
I read somewhere that Ducati is thinking to replace its panigale twin with a V4... it was time! I'm not a fan of the twins. yes, I appreciated the boxer of the R1100RS for its torque and the parallel twin of the F800S because was very good in the city as in the curves of the state roads, but the four cylinders engines are much better for me. the K1300S and F4 have been the best bikes I've owned in the last years. now I have not any bike, I can't ride any more, maybe in the future if my leg will be firm enough, but I must be realistic, is not probably. anyway, if I will be able to ride again, and I'll have enough money to spend on a bike I'll surely go for another super sport four cylinders.
 
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#45 ·
On my -13 800GS the AFXIED made the engine ALOT smoother from idle and up. There are still small vibrations at higher RPM (not anoying, merely a buzz). Before AFXIED the buzz started above 5K, and adding the AFXIED the buzz starts above 6,5K.

Some people claims the Boosterplug works, and I respect their statement. But I do not understand how this can be true after a couple of thousand Km, as the BMS is adaptive.
 
#46 ·
To add a comment about vibrations, when I put the stock exhaust back on my bike to see if the aftermarket exhaust actually did anything but change the sound, I made it four days before I pulled the stock exhaust again and returned to the aftermarket exhaust.
I found the vibrations just too annoying after what it felt like the previous ~1000 miles.

Before that the bike had "settled"/smoothed all bone stock from driving it off the lot when I bought it to after the first service.
I noticed a further smoothing after I added the motor guards the weekend after (bolts on using the main motor mount points on top of frame, so could very well relate)

I'm using the AF-XIED which might help vibrations but I can't quantify any impact, I mostly run it because of the warm fuzzies of knowing I'm not running the bike overly lean and it does seem to smooth out throttle response.

First service, engine guard install and exhaust are the three things that seem to have had the biggest impact on the vibrations in my bike.
What i have now is just unannoying normal combustion engine being alive feel.


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#47 ·
I bought my F800GS in 9/2008. One of those "early and few" pre-payments bought without seeing purchases. Yes it vibrated, Primarily between 3,500/5000rpm. At about 20,000 miles it got smoother.


When available I added a "Booster Plug" like device when it was available. The AF-Xied was added about 3 years ago. Set as 7. I just never took the other first device off. I saw no point to it. It either quit working as some claimed, or it added to the power.

I believe in the AF-Xied because as an early buyer I could actually feel differences in power changes within certain RPM changes I made in Mountain terrain I live in.

I also noted some changes when I removed the aftermarket muffler. It had a noise surpresser on it. I believe the stock muffler's exhaust exited more exhaust at higher RPM's than some of the $200 mufflers.

I changed the gearing !!!!! several times. Stock, 15 tooth, 17 tooth, back to 16, then 17 again. I could always shift it down it needed. It is a 6% change, just like the 5-6 gear changes.

At 75 and sick I did not need to do single track again. 40 miles of Oregon silt would do fine. The bike was pretty smooth for a long time. On the 3,200 mile trip I took, pinned out accelerating through 85mph that was about the point that induced vibrations again until backed off the throttle.