Bike is freaking out (power has like multiplied by 10)

[Wrightboy]

You may have seen some of my other posts, the bikes always had power issues since I got it, sucked trying to get it to go from a stop even WOT.
Acceleration was worse than your average car (seriously, it crawled...bicycles can pass me)

So I had my girl with me and we went to the movies, same old thing, bike can barely drag us around.
We get out of Fast Five (great movie btw) and we start leaving, everything is normal (normal being minimal power)
A few minutes down the road we pull up to a stop sign, I crank it open and let out the clutch, I kid you not the front end popped up and we tore off.
Scared me to death lol. We stopped, started again, still had RIDICULOUS power. I'm not even kidding.
Dropped the girl off at home, even shut off the bike, fired it up took it out...omfg. I need a video of what it was before and what it is now. It was seriously a joke before, now it terrifies me...Hit 50mph in what felt like 1-2 seconds. And for once instead of twisting the throttle being the same as just leaving it at 1/4-1/2 (not even kidding, if you twisted for more power, you got a lower tone lol, in first and second!) it gets up and HAULS.

This literally happened 5 minutes ago, came inside and right to the computer. What the heck is going on? All I did today was replace the the tires and pegs rotfl. It's scary easy to bring the front up. Feels like I could do 0-60 in 4 seconds easy.

Anyway, sorry for all the rambling. But there you have it. Bike went from being owned by grandma cars, do lifting the front 2-up and now scaring the living crap out of me. Any idea what could have happened and if it's a sign the bike is in trouble or something?

Thanks,
-Wright

[Big Rich]

Had a weak spark due to a faulty spark plug wire? Main jet in one carb suddenly got "un-clogged"?

[Wrightboy]

I don't know enough to make a claim to either. It sounds the same...revs the same. Idle even still hangs lol. It just got ridiculous amounts of power from nowhere. And so strange that it came mid-ride...the worst part is the habit I've built of just cranking it all the way whenever, because it really didn't do anything. Have already peeled out, and fishtailed out my gravel drive (couldn't even do that on what it was before).

-Wright

[Twisted]

Sounds like Rich is on the right track. A clogged carb becoming unclogged could be the culprit.

[Paulcet]

Yep, something broke open or a wire got reconnected.  Or you grabbed someone else bike and we will soon hear from someone who went to the movies and now his bike runs like crap!

[kml.krk]

hey you! give me back my bike!  

Probably clogged jet. Try using carb cleaner or better yet: manually clean the carbs (taking them off the bike)
Also make sure there is no rust in the tank, otherwise even if you clean your carbs they will clog again

PS. Don't mean to pick on you but I don't think GS is capable of 0-60 in 4 seconds, not stock engine anyways.

[ver4]

Have you added stickers?  Stickers add like 40 hp.

[gsJack]

.............................All I did today was replace the the tires and pegs rotfl. It's scary easy to bring the front up. Feels like I could do 0-60 in 4 seconds easy.

Thanks,
-Wright

Gotta try those tires, what kind?   

[noiseguy]

I bet it was running on 1 cylinder before and is now running on two. My vote is electrical.

[Wrightboy]

PS. Don't mean to pick on you but I don't think GS is capable of 0-60 in 4 seconds, not stock engine anyways.

Haha, I agree. It's just such a contrast from what it was before that it feels like it could =P

Gotta try those tires, what kind?   

Haha, just some cheap Shinko's =P

I don't think it was the carbs, I saw the bike 2-3 weeks ago and the carbs were still off getting cleaned. Unless something got screwed up then.
The only other thing I can remember doing yesterday is filling up, and going 89 instead of 87. 89 from now on I guess lol 

Now I'm just waiting for it to go away again, gonna be zipping along and all the sudden I'll be killing it at the next stop >.>;;

-Wright

[DoD#i]

I don't think it was the carbs, I saw the bike 2-3 weeks ago and the carbs were still off getting cleaned. Unless something got screwed up then.
The only other thing I can remember doing yesterday is filling up, and going 89 instead of 87. 89 from now on I guess lol 

There is a reason most sensible bike owners become their bikes mechanics, and it's because the number of bad M/C mechanics that shops will charge for just as if they were PhD Professors of Motorcycleology that could actually fix things is stunningly high. Of course, the wrong kind of shop owner probably regards someone who can swap in $600 worth of parts that don't need to be swapped, charge 10 hours labor, and not fix the 5 minute/15 cent part causing the actual problem is a good thing - perhaps even better if they can cause another problem or two - and there are evidently a lot of the wrong kind of shop owners out there, too...

I seriously doubt the octane made much difference. But it's very easy to check - fill up with 87 and see if the problem comes back, fill up with 89 and see if it stays away - I'm betting if the problem recurs it has more to do with rust in the carbs (coming from rust in the tank) than what gas is in the tank, and thus will recur randomly regardless of grade of gas. If it was merely gunk in the carbs that has finally dissolved, it may not come back at all.

[bill14224]

There are many possibilities here, like the ones already mentioned, or something like a stuck ring.  A new engineer where I work bought an old Honda V45 Sabre cheap, and it ran like crap.  He limped it around that way while he read as much as he could about his bike, testing everything he could think of.  It still ran like crap.  Then it hit him to pour some penetrating oil in the cylinders, turn it over, add some more, and let it sit overnight.  Next morning he cranked it until it finally started, waited for the smoke to clear, but it STILL ran like crap.  But then, after a few more minutes, it began running like a champ.  Ran fine ever since.

And that 0-60 took more like 8 seconds, but it seemed like 2 because before it took all day!

[Wrightboy]

Took it out again, still has the power! lol.

Tried counting off a 0-60 but I got around 5 or so seconds so I must be counting to slow, I'll get a watch or something one day.

One new thing besides the power that might have some part in this is, the backfiring on decel is gone. It seriously used to "explode" on decel from any speed over 20mph. Drove it for an hour, never happened once. Not sure the correlation if any, but maybe?

On a side note...new high speed for me! I have like a 10 mile straight out in the country I go to that doesn't have a speed limit (minus the states, which I think is 70?). Tore it up to 90 before getting scared (felt like I was going to blow away, need to invest in a windscreen), seriously took me right up to it though, I was impressed. Also another thing I noticed, was practicing cruising at freeway speeds (70mph). The bike handles so slow, I'd imagine this is normal at that speed, and I guess it's good to know...

There are many possibilities here, like the ones already mentioned, or something like a stuck ring.  A new engineer where I work bought an old Honda V45 Sabre cheap, and it ran like crap.  He limped it around that way while he read as much as he could about his bike, testing everything he could think of.  It still ran like crap.  Then it hit him to pour some penetrating oil in the cylinders, turn it over, add some more, and let it sit overnight.  Next morning he cranked it until it finally started, waited for the smoke to clear, but it STILL ran like crap.  But then, after a few more minutes, it began running like a champ.  Ran fine ever since.

And that 0-60 took more like 8 seconds, but it seemed like 2 because before it took all day!

Yeah, eyes have kinda been opened to that. And now that I see that these bikes really are decent, might be time to start investing in some tools.

-Wright

[Pelikan]

Have you added stickers?  Stickers add like 40 hp.

Dude, more like 80.  Get with it.

[CmdrPopNFresh]

Sounds like a carb had something stuck in a jet. Popping on decel is generally a sign of running lean....and you would be lean if a jet was partially plugged.

[ver4]

Have you added stickers?  Stickers add like 40 hp.

Dude, more like 80.  Get with it.

Are you sure?  I guess I'll just have to take your word.

[tucsondog]

Stickers, naw, only about 5 HP each. When you wash your bike though, you get a 10% acceleration bonus, and if you wax it you also get a 10% top speed bonus. Through in parts addition or component fix and there is a 2x multiplier for all the other bonus's. Glad to hear it's running so well though.

[bill14224]

I agree with Poppin fresh.  Exhaust popping going away would be explained by jet obstruction going away.