Running SLUGGISH

[DOUBLED'SSHADOW]

Hey guys.....I put a new hypercharger and Some vance and hines straight shots on my bike the other day....since i put them on i have noticed that the bike is running rather sluggish takes a while for it to get up and go.....i have my mixture screws at 3 turns because thats what the jet kit instructions said to put them at for un baffled pipes....should i ajust and recommendations????? thanks

Double D

[Machinehead]

DD,

Wouldn't it be best to consolidate your HC posts into one thread? I don't know about other members here, but tracking your HC issue is work for me.

Anyways, wot happens when you leave the choke ON? Does the "sluggishness" go away or does it worsen?

[Mr.Sinister]

Double's always post twice . :tongue2:

[Machinehead]

Well that's all cool and shit on his end..but having to click here and click there is a PITA on this end....all I'm concerned about is getting the machine in top running condition.....

DD will have to eliminate possiblities at this point before progressing.....such as vacuum leaks and faulty install issues with the air breather etc..

[RustyJake]

Okay, WTF happened? Did he or didn't he get it working? Or did he just get tired of all the help he was getting?:pest:

[DOUBLED'SSHADOW]

hey guys.....I got the hypercharger on.....and i got the butterlies working.....the bike is still kind of sluggish i think i dont know seems like its either surging or maybe i need to be shifting differently now that i have more air flow....i dont know

[Menace]

hey guys.....I got the hypercharger on.....and i got the butterlies working.....the bike is still kind of sluggish i think i dont know seems like its either surging or maybe i need to be shifting differently now that i have more air flow....i dont know

So you added a Hypercharger and did not rejet? I thought whenever you modified the airbox/intake you had to rejet. Ride it then pull the plugs and see if you are lean or rich.

[Mr.Sinister]

Sounds lean . The surging . Are you sluggish in all gears ? The top or bottom of the gears ? Did you put on new pipes? Are they drag pipes ? I have Burbs and if you want to get up and move you got to gas it . At slow speeds they don't build much backpressure . If you gun it , it takes off like a rocket . If you baby it it feels a little sluggish . My gears are alot taller when I acellarate hard . They are close to the same as stock if I am in traffic and riding more concervitive .First is 1-20 with soft acellaration on hard acellaration 1-35 and second 35-50 . Second in traffic 20-35 . It really depends on riding style with my setup .

[DOUBLED'SSHADOW]

hey guys......

Yeah i dont know my bike is running like shit.....every since i did the mods.....surging and running sluggish.....i dont know i cant get the bike over 50 miles per hour.....its like first gear is 0 to 10 second is 15 to 25 third is 25 to 40 its bull shit....i pulled the plugs looks like they are burning up or running hot.....what should i do....the bike was bran new just hit....640....Dana

[Mr.Sinister]

We will need details to help .... What size jets and by whom are they made ?This makes a difrence . Tell us about the Hypercharger , what have you done ? Reply to the prevous post about the choke . WE CAN HELP IF YOU ANSWER POSTS AND GIVE DETAILED INFO .Check in a couple times a day if you can . :happy:

[AirportFF]

hey guys......

Yeah i dont know my bike is running like shit.....every since i did the mods.....surging and running sluggish.....i dont know i cant get the bike over 50 miles per hour.....its like first gear is 0 to 10 second is 15 to 25 third is 25 to 40 its bull shit....i pulled the plugs looks like they are burning up or running hot.....what should i do....the bike was bran new just hit....640....Dana


You haven't been on in almost a month. What's the matter? We answered your questions then you blow us off. Then when the shit hits the fan you're back? :happy:

[Menace]

You haven't been on in almost a month. What's the matter? We answered your questions then you blow us off. Then when the shit hits the fan you're back? :happy:

Maybe DOUBLED'SSHADOW was on a long ride. :happy:

[navillustoo]

You haven't been on in almost a month. What's the matter? We answered your questions then you blow us off. Then when the shit hits the fan you're back? :happy:

Well, he did say he was sluggish! :wink_2:

Brian

[gozz2121]

hey all, I checked several threads and couldn't find anything on running rough, so I figgered I would start here. Just rejetted,and put on K&N intake with V&H straight shots, response and top end are great, the prob is cruising around 55-65 she seems to surge or miss out a little gets progressivly worse the longer I ride. Already adjusted mixture screws 2 1/2 and 2 on rear and front any suggestion? Thanks

[RustyJake]

Start simple and make sure you don't have any exhaust leaks or leaks at the intake you just put on.
From what I've read surging could be due to a lean condition as well. But I would start at the exhaust and work to the intake to make sure you don't have any leaks. Did you change the crush gaskets when you changed out your pipes?

[Mr.Sinister]

Rusty is right look into the leaks first .If you don't find any you may need to rejet one size up .What jets are you using , brand and size ?

[DOUBLED'SSHADOW]

Hey guys i know i havent been on in a while and your gonna bust my balls but just found out my wife is preggo again havent been on in a very long time and havent had time to ride the bike.....I just had a question .....

I had a shop look at my bike and they had determined that i didnt have the right size jets in the carb thats why the bike was running rough.....well a month after i got caught in a rainstorm and it seemed like one of my cyclinders shut down i got alot of back fire and popping....well i pulled the plugs and they were all black and wet i put them in a sparkplug sand blaster to clean them once i did that the bike ran fine for a while.....

the same cylinder that went out is still back fireing and is smoking on occasion when i turn the bike off....when i pull the plugs they are black still and smell of fuel what can i do???????

thanks for you time

Dana

[Machinehead]

Replace the plugs and ...whenever you have the time...update us...

[navillustoo]

hey all, I checked several threads and couldn't find anything on running rough, so I figgered I would start here. Just rejetted,and put on K&N intake with V&H straight shots, response and top end are great, the prob is cruising around 55-65 she seems to surge or miss out a little gets progressivly worse the longer I ride. Already adjusted mixture screws 2 1/2 and 2 on rear and front any suggestion? Thanks

gozz,
My first thought is you may have the needles set too lean. RJ is right, surging in the mid-range is caused by a lean condition. What jetting set-up did you use?

Brian

[RustyJake]

Hey guys i know i havent been on in a while and your gonna bust my balls but just found out my wife is preggo again havent been on in a very long time and havent had time to ride the bike.....I just had a question .....

I had a shop look at my bike and they had determined that i didnt have the right size jets in the carb thats why the bike was running rough.....well a month after i got caught in a rainstorm and it seemed like one of my cyclinders shut down i got alot of back fire and popping....well i pulled the plugs and they were all black and wet i put them in a sparkplug sand blaster to clean them once i did that the bike ran fine for a while.....

the same cylinder that went out is still back fireing and is smoking on occasion when i turn the bike off....when i pull the plugs they are black still and smell of fuel what can i do???????

thanks for you time

Dana
If you got caught in a rain storm with an open element air filter or a hyper charger you more then likely have water in the carbs. About the only real way to remove it is to drain the carbs. With the way water seems to hide in a carb, dismantling the carb for a thorough cleaning sometimes needs to be done.
You can try getting away with running a can of SeaFoam through the tank. The stuff works great for removing water and cleaning fuel systems.
Did you change your jets? What size are you running now. With your statement that you ran for a month, did it run good for that month, or were there still problems?
Start by making sure you don't have water in the carbs. Once you get rid of the water, change your plugs and start fresh.

[DOUBLED'SSHADOW]

HEY GUYS SHOULD I MESS WITH THE MIXTURE SCREWS AT ALL??? HOW MANY TURNS ??????

THANKS

DANA :Mr-T:

[RustyJake]

HEY GUYS SHOULD I MESS WITH THE MIXTURE SCREWS AT ALL??? HOW MANY TURNS ??????

THANKS

DANA :Mr-T:
It's your bike, you don't need anyone's permission to mess with it. You could also try running with just one spark plug in both cylinders:no:. But neither will help your situation. The cause of your problem hasn't been determined yet, so you could just compound it by doing that. Go back and read your post about your problem, then look at the response. Try answering some of the questions. Someone on here may be able to help you if you give them an idea of what is happening.
There's some great help in the way of carbs on this site, you just need to give more information and if someone responds with some questions, you may want to address those before you move on to trouble shooting it yourself.

[DOUBLED'SSHADOW]

hey guys...

I'll start from the begining i got caught in a rain storm and it seemed like one of my cylinders went and i was only running off of one muffler. I was getting alot of back fire to the point where there were flames comming out of the mufflers. i pulled to plugs and they were soaking wet with mater and covered in gas.....

I cleaned the plugs and it seemed to be running fine.....but then the same cylinder that wasnt working correctly was smoking....the plugs are still running rich....DONT KNOW WHAT TO DO.....Its not that im afraid to work on my bike but would just like to get some prior knowledge or advice before i go for it....im really not that mechanically inclined....dont wanna mess anything up....i guess ill try putting some seafoam in the tank to see if there is any water in the carbs because i really dont feel like pulling the carbs to drain them.....

please help or give suggestions to what i can do

thanks

Dana D.

[AirportFF]

Do the Seafoam first. Then get back to us as to whether it improved or not. Your problem seems to be an overeagerness to rip shit apart. One step at a time. DO NOT fuck with the mixture screws at this point.

I will put money on water in your carbs, isn't that Hypercharger great :wink_2:

[DOUBLED'SSHADOW]

any know what the mixture screws should be at with a hypercharger on the bike....thanks

Dana :Mr-T:

[RustyJake]

From every indication you've given us, this problem ONLY started AFTER you were caught in the rain....do you see the possible cause???? Water can do strange things in a carb and you may be experiencing just that. It's not like this hasn't been suggested to you already, but here goes.....you need to make sure that there is NO water in your carbs. Running a can of SeaFoam through it may help. You can also try draining the float bowls. The only real way is to take the carb off and clean it. But trying some SeaFoam won't hurt the bike, neither will draining the float bowl (be careful when/if you do not to get gas all over your bike.)
Messing with the air mixture screws doesn't seem like a good choice for the first course of action. Unless of course you are trying to tell us you already messed with them and you don't have a clue where they were set to begin with.

[gozz2121]

gozz,
My first thought is you may have the needles set too lean. RJ is right, surging in the mid-range is caused by a lean condition. What jetting set-up did you use?

Brian
Brian,
The set up I'm using is from the Thunder jet kit stage 3. The intrsuctions say to use the dj134 on the front and the dj 138 on the rear it also says to set the needles on the fourth groove from the top and to remove the top two grooves for proper retainer installation. While riding the other day I fouled the plugs I replaced them and adjusted the mixture screws until I wasn't getting any backfiring while idling, improved the situation but still not as good as I would like it, she spits and sputters when I really get on it at top end low gears. Tried to give all info I could hope to hear from ya soon,
Thanks Gozz

[Mr.Sinister]

How many turns out on the mix screws ?

[gozz2121]

Started with what they recommended 2 & 21/2, but I reset them all the way in and ended up with the rear being only about 1 3/4 and the front only about 1 1/4. It was idling with some popping occaisionally,this setup got rid of the popping. Going to ride later today to get a better feel for whats going on, Thanks

[navillustoo]

Gozz,
I believe you are too lean on your idle mixture setting. Most people have their's out to 3 to 3-1/2 turns. If the engine was popping or backfiring at idle, it would indicate lean. Backing the screws out richens up the mixture. As far as the engine breaking up at top end of low gears, you are aware that there is a rev-limiter built into these ignitions aren't you? It causes the ignition to drop out at around 5000 RPM( at least that's what it is on my 1100). The only way to increase the point at which this occurs is to get the Dyna ignition box which has provisions for a higher rev limit.
If it's not caused by the ignition, then there's a reason it's leaning out. Your Stage 3 installation sounds right to me, so it'd have to be something besides that. Does the bike pull hard until all of a sudden it starts to break up? If so, I'll bet it's the rev-limiter.

Brian

[gozz2121]

My brother and I had talked about the rev limiter but wasn't sure if there was one or not thanks for verifying that aspect of the problem. Just went up the road to get fuel and the surging and missing is still there at 55-65 mph I'll try backing off some more on the mix screws if yall think it will help.

[navillustoo]

Gozz,
Adjusting the mixture screws WON'T help at 55 to 65 MPH, they only adjust the mixture at idle. If you are experiencing a surge at those speeds, it's the needles. The needles determine your A/F mixture from about 1/4 to 3/4 throttle opening. If the engine runs good in all gears with the throttle wide open, then your main jets are OK. You will just need to move the clip on the needles one groove farther from the top. This will in effect, shorten the needles and let more fuel flow. But first, I would suggest partially covering the air filter housing to see if that eliminates the surging. You will be cutting off some of the air flow to the engine and verifying that it is a lean surge you are experiencing. I have to wonder if you might have a small vacuum leak, as I said earlier, the set-up you described should be right on. You may want to look at the needle diaphrams, make sure they are properly seated and have no pin holes in them. If they are leaking vacuum, the needles wouldn't be retracted to the point where they should be at those speeds, thus leaning the engine out. I would make these checks BEFORE moving the clips!

Brian

[DOUBLED'SSHADOW]

hey guys....just wanted to let you know that i replaced the spark plugs, got a new filter for the hyper charger, drained the carbs, and turned the front mixture screw to about 3 turns and its running fine......

Dana :Mr-T:

[AirportFF]

Unless of course you are trying to tell us you already messed with them and you don't have a clue where they were set to begin with.


That's where my money is :wink_2:

[gozz2121]

Gozz,
Adjusting the mixture screws WON'T help at 55 to 65 MPH, they only adjust the mixture at idle. If you are experiencing a surge at those speeds, it's the needles. The needles determine your A/F mixture from about 1/4 to 3/4 throttle opening. If the engine runs good in all gears with the throttle wide open, then your main jets are OK. You will just need to move the clip on the needles one groove farther from the top. This will in effect, shorten the needles and let more fuel flow. But first, I would suggest partially covering the air filter housing to see if that eliminates the surging. You will be cutting off some of the air flow to the engine and verifying that it is a lean surge you are experiencing. I have to wonder if you might have a small vacuum leak, as I said earlier, the set-up you described should be right on. You may want to look at the needle diaphrams, make sure they are properly seated and have no pin holes in them. If they are leaking vacuum, the needles wouldn't be retracted to the point where they should be at those speeds, thus leaning the engine out. I would make these checks BEFORE moving the clips!

Brian
Brian
sorry for not responding sooner,work, anyways checked all connections and everything seemed okay, didn't notice any pin holes or anything. I moved the clip like you suggested and the prob is still there, if I throttle on and off it runs good if I try cruising at mid throttle it still misses, kinda like you're running out of fuel.

[AirportFF]

Brian
sorry for not responding sooner,work, anyways checked all connections and everything seemed okay, didn't notice any pin holes or anything. I moved the clip like you suggested and the prob is still there, if I throttle on and off it runs good if I try cruising at mid throttle it still misses, kinda like you're running out of fuel.


is the fuel valve open all the way?

[navillustoo]

Brian
sorry for not responding sooner,work, anyways checked all connections and everything seemed okay, didn't notice any pin holes or anything. I moved the clip like you suggested and the prob is still there, if I throttle on and off it runs good if I try cruising at mid throttle it still misses, kinda like you're running out of fuel.

This just sounds weird! I'd like to see the bike, any chance you can ride over on the Labor Day weekend? The only other thing I can think of at this time is what plugs are you running. If the heat range of the plugs are too hot, you may experience this missing, but that's fairly unlikely. I'll have to ponder over this awhile, if I think of something else to check, I'll holler at ya!

Brian

[DOUBLED'SSHADOW]

hey guys.....

thought i had everything fixed but the bike is still running like shit im getting pissed off havent even gotten to ride the thing at all.....the bike just doesnt seem to have any get up and go every since i got caught in the rain....i drained the float bowls and put new spark plugs in the bike that helped for about 3 miles then it started surging....i dont know what else to do and my local dealer wants 160.00 just to give the thing a tune up and oil change.....please help...with any suggestions at what i can do.....Dana :Mr-T:

[RustyJake]

did you run a can of SeaFoam through it?

[DOUBLED'SSHADOW]

hey guys.....

i think my bike is idleing high and i pulled the plugs and they are all black again?? any one know what it can be.....

thanks

Dana :Mr-T:

[AirportFF]

Spend the $160....

[RustyJake]

How's this, does anyone know why rice is white?

[Mr.Sinister]

This just sounds weird! I'd like to see the bike, any chance you can ride over on the Labor Day weekend? The only other thing I can think of at this time is what plugs are you running. If the heat range of the plugs are too hot, you may experience this missing, but that's fairly unlikely. I'll have to ponder over this awhile, if I think of something else to check, I'll holler at ya!

Brian Hey NAV, did you ever figure this one out? I have been having trouble with this lately. Thanks Joe

[M@Man]

How's this, does anyone know why rice is white?

Cuz it's bleached. :freak:

M@

[AirportFF]

Ole DD hasn't been on since August. I wonder what the end result of this was....There was another guy that was on here since DD that REALLY reminded me of him. I was sure that he changed his user name, now I can't find the thread.

BTW when the snow melts where does the white go??

[Mr.Sinister]

I figured it out! Loose airbox. The rubber triangle part was ripped away about 3/4 on the seal. And the clamp that holds it on looked like it was on but was not. I found it while checking the plugs.

[wataskia2000]

Gozz did you ever figure anything out? Mine seems to be having the same problems right now. I think im going to try changing out the fuel filter or maybe cleaning the carbs alltogether.