MISSING UP TO 2000 R.P.M's

[Valkski]

Hello and help,
  Have an issue with my lady, she's a bit cranky ! Sat most of the winter , started 2 or three times though in the garage.
  She is a '98 std. with 28,000 mi. that is , sputtering, missing up to approx. 1900-2000 rpm's then all is normal. Missing at idle wants to stall .  I just changed the plugs 2 mos. ago and filled the tank with new gas and berryman's B 12. Went for a 20 mile ride and removed the plugs, they are a light grey.
    Thank you in advance for any help !
  Rich K ( Valk Ski )

[Bighead]

Plugged slow jets.

[Hook#3287]

Give the Berrymans a chance to work.  Couple tanks at low rpm's 

If that don't do it, time to yank the carbs.

[gordonv]

How much B-12?

1/2 can with 1/2 tank of fresh fuel. Low rpm, high gear and low speed, variable  rpm, but within the range that was giving you a problem. 50 mile rides. Let it sit over night, and repeat.

It may take multiple doses, but after 2 cans and no improvement at all, then you're looking at an over haul. If you get some improvement, repeat with another cleaner, Techron is a good one.

I also have switched to Chevron fuel, as Techron is in it, for how often I ride.

[old2soon]

Next time you park it long term REMEMBER Marine Stabil. Add it let it run til yer SURE It's in the carbs. RIDE SAFE.

[Valkski]

  Forgot to mention, only had 18 mi. on her since I filled it last late fall. When I just filled it again yesterday and it took 4.2 gallons, lots of evaporation ?   
   Will try those methods. 
Thank you all again!
  Rich K ( Valk Ski )

[Hook#3287]

  Forgot to mention, only had 18 mi. on her since I filled it last late fall. When I just filled it again yesterday and it took 4.2 gallons, lots of evaporation ?   
   Will try those methods. 
Thank you all again!
  Rich K ( Valk Ski )

  I can't see that being evaporation    More likely a leak somewhere.  No gas smell or evidence of leaking?

[The emperor has no clothes]

  Forgot to mention, only had 18 mi. on her since I filled it last late fall. When I just filled it again yesterday and it took 4.2 gallons, lots of evaporation ?   
   Will try those methods. 
Thank you all again!
  Rich K ( Valk Ski )

I'd check the oil level to make sure you don't have a float leaking gas thru one of your cylinders. Be ware of a hydrolock .

[Valkski]

O.K !
 Thanks.

[Valkski]

How much B-12?

1/2 can with 1/2 tank of fresh fuel. Low rpm, high gear and low speed, variable  rpm, but within the range that was giving you a problem. 50 mile rides. Let it sit over night, and repeat.

It may take multiple doses, but after 2 cans and no improvement at all, then you're looking at an over haul. If you get some improvement, repeat with another cleaner, Techron is a good one.

I also have switched to Chevron fuel, as Techron is in it, for how often I ride.

Half can to a full tank of premium ( have a trigger wheel ).

[Valkski]

Hello,
  I added 1/2 can of berryman's to a full tank of premium fuel ( trigger wheel ). Ran it approx 15 miles so far yesterday
  Checked oil and it sits just at full line. Will check for leaks but I do not smell fuel.
  Thank again,
 Rich K ( Valk Ski )

[Hooter]

Ride it in the range it misses, but more than 15 miles. Ride it until you are low on fuel, fill it and dump the other 1/2 can of Berrymans in, do it over. Never store without additive bad juju can happen. Took 4 cans of Sea Foam to straighten out my friends bike. Be patient.

[IdahoRaider]

  Forgot to mention, only had 18 mi. on her since I filled it last late fall. When I just filled it again yesterday and it took 4.2 gallons, lots of evaporation ?   
   Will try those methods. 
Thank you all again!
  Rich K ( Valk Ski )

  I can't see that being evaporation    More likely a leak somewhere.  No gas smell or evidence of leaking?

I agree, that is not evaporation , you should have smelled something, or someone is talking your girl out for a Sunday drive.

[Valkyrie0002]

Even after a carb tear down mine ran rough.  It took about 50 miles with a good dose of B12 before I noticed a difference and then at about 100 miles it was still getting better.  I kept it at about 2k RPM as much as possible for the fist 100 miles because I had clogged slow speed jets.   I'm going to treat a couple more tank fulls of fuel.

[Valkski]

So,
   I have been keeping it between idle (rough ) and 3000 rpm's thru all gears staying between 4th and 5th on back roads around 30 to 40 mph.  Should that do? I have approx. 50 miles on it so far. I raised the idle a lil'
  I checked the oil level numerous times and it is right on the full line with her leveled out.
  Time to go for another ride(15 or 20 mi. )  Re-fill gas and add more berries.
  Thanks for the help !
  Rich K ( Valk Ski )
  Any other tips?

[Valkski]

Re filled it at 58 mi. ,it took 1.8 gallons . Added more Berrymans ,Went for a 20 mi. ride.
  Rich K ( ValkSki )

[gordonv]

It sounds like your doing it right. Nothing I would pick as needing changing.

Just give it about 200-300 miles, you should feel/hear some improvement. Some have come back after as little as 50 and have reported vast improvement. Some have come back after 3 cans, and nothing.

I would rather dump in 3 cans of B12 @ $4 ea and enjoy the ride, than to recommend or do a carb overhaul and a clean. I don't want to go out and buy a ultrasonic bath for a one time only job.

just remember your fuel stabilizer anytime you park it for a period of time. After recommendation from online, I'm now using the Marine Stabil, due to higher humidity where I live.

[Hooter]

How much B12 you using per tank full?

[Valkski]

It sounds like your doing it right. Nothing I would pick as needing changing.

Just give it about 200-300 miles, you should feel/hear some improvement. Some have come back after as little as 50 and have reported vast improvement. Some have come back after 3 cans, and nothing.

I would rather dump in 3 cans of B12 @ $4 ea and enjoy the ride, than to recommend or do a carb overhaul and a clean. I don't want to go out and buy a ultrasonic bath for a one time only job.

just remember your fuel stabilizer anytime you park it for a period of time. After recommendation from online, I'm now using the Marine Stabil, due to higher humidity where I live.

I have been using Star- tron and sea foam for years during the down time, But I dis-located my ankle and did not ride it for about a year, it sat in the garage,started and idled it from time to time . Now I have sta-bil marine for when it sits.
  Thanks,
  Rich K ( Valk Ski )

[Valkski]

How much B12 you using per tank full?

  1/2 can for a full tank !

[Houdini]

How much B12 you using per tank full?

  1/2 can for a full tank !

When mine sit up for too long and are running rough I put in a full can to a tank.  Once when my IS sat for 1.5 years I ended up using four cans in three tanks to get her running smooth again. 

[RonW]

Another option is to reverse feed gas into the carb bowls through the drain spout with a large plastic syringe using a high dose of B-12, Stabil. The jets sit submerged in the solution. Rinse and repeat daily, so on. Little faster that way.

[Valkski]

Another option is to reverse feed gas into the carb bowls through the drain spout with a large plastic syringe using a high dose of B-12, Stabil. The jets sit submerged in the solution. Rinse and repeat daily, so on. Little faster that way.

  Ron,
  Is there a common drain for all carbs,(where is it located,left or rt. bank ,front or back) or is there a separate drain for each carb .
  Thank you!
  Rich K ( Valk Ski )

[RonW]

It's these 6 tubes that goes into a single large tube (red arrow) that exits at the bottom of the bike next to the coolant overflow tube & the breather crankcase tube (2nd pic). The six carbs then drain collectively at the bottom of the bike for your convenience. However, if the 6 tubes where they're connected to the individual drain spouts on the carb bowls are creased, gasoline instead is gonna drain on the top of the engine. When you clean under the carbs, the drain tubes gets bumped around and rubber tubes splits at the drain spout connection. I got rid of my drain tubes. If the previous owner did that too, you won't have them. The drain spouts can be accessed individual easily from the side of the bike. A slotted screw opens & closes the drain spouts (bottom pic) and the drain spouts themselves are nearby, with tubes on them, or without the tubes. [edit] Yes, each carb bowl has its own drain spout & tube.

[Valkski]

O.K,  I am the 2nd owner ,but bought the Valk used with 632 miles on it ! So every thing is stock except for what I did to it for the last 20 years. She won 1st place at Americade Valk competition in '02 and '03 came in 2nd place best in show in '03 ( 2 pts. shy ) placed 2nd. in '01 and '04
  THANK YOU again.
  Rich K ( Valk Ski )

[Valkski]

Took a ride again today, chipping away at it. Parked in garage I slowly brought the revs up to 4500-5000 RPM's and it even seemed to have a miss,sputter up to that point.
  Rich K ( Valk Ski )

[Paladin528]

One Treatment that has worked for me in the past was given to me by a great mechanic.
You need one can of Suzuki Carb Cleaner (spray can)
3 different diameter hoses to go from the can to the fuel line
Remove the nozzle from the can and push the small hose over the stub.
Insert that line into the next line and that into the 3rd so you are stepping up to a hose that will fint INSIDE your fuel line where it attaches to the Petcock.
Remove the line from the petcock and insert the line from the can into the fuel line.
Now drain the carb bowls.
Now release the carb cleaner into the fuel system.  It foams up so you have to do it in intervals.  Eventually it will overflow the carbs through the overflow lines. 
Careful because it will eat the paint off the engine.
Now let it sit for about 24 hours.

Now the fun part.
Drain the carb bowls and reconnect the fuel line to the petcock.
(this is where is would be a good place to have a vacuum pump to open the petcock and allow the fuel to fill the carbs)
if not try cranking the bike and starting it.  THIS WILL NOT BE EASY.  you may kill the battery during this process.
Eventually it will run on its own but will sputter and cough and SMOKE.  No worries this only lasts about 20 minutes.
once its general anger from getting an enema subsides it will smooth out and run like a champ.

The Suzuki Carb cleaner is HARSH stuff but will do no harm to the carb.
it is WAY more volatile that Berrymans or Seafoam or the like. It will clean the paint right off your bike if youa re not careful.

[Valkski]

Planning on doing the reverse injection . Just wondering if when I open the drain screws if there is a chance the seals will leak when I crack them open to inject and then close to re seal ?
 Thanks
  Rich K ( Valk Ski )

[RonW]

I believe the drain screws have a metal-to-metal seat, so don't over tighten. Perhaps, hash mark the slot position as a reference. Also, the carb bowls have overflow/vent tubes.

[Valkski]

 So maybe (1-2) oz. per bowl. How will I know when it is full ,when the syringe has some resistance ?
  Thanks,
  Rich ( Valk Ski )   

[RonW]

Gee whiz just wing it. After the carb bowl is filled, you might try pulling and pushing the syringe's plunger back and forth to agitate/siphon the debris inside the bowls if that makes any sense.

[Valkski]

Ron,
  It's not my Wing that is experiencing problems ( ) I understand
  Will give it a whirl  ! 
  Thanks again !
  Rich

[Valkski]

Ron,
  It's not my Wing that is experiencing problems ( ) I understand
  Will give it a whirl  ! 
  Thanks again !
  Rich

I REALLY appreciate all the help !
  Thank you again!

[Valkski]

Alright,the berrymans is injected into each carb., injected and sucked out a few time each bowl. As I withdrew the fluid it was not as clean as it went in when it came out. Hoping this does a lil' something more to cure the problem.
  How long should I keep it in the bowls and what method should it be taken out. Should I suction it out or   just open the petcock and start it after it sits? Will it start with that % of cleaner?
   Thanks again!
  Rich K ( Valk Ski )   

[RonW]

yu really should let the solution soak overnight etc. To start of, yea, flush the carb bowls out repeatedly to knock off any loose gunk and to extricate that and any debris that settled on the bottom of the bowls. The drain spout drains from the bottom of the bowls. My bike sat over a year before I could work on it. From that point, I drained the carb bowls daily through the drain spout and refilled. The jets sit submerged below the fuel level in the bowls. It *speeds up* the process, instead of just having the B-12 infused gasoline in the tank cycling through the carbs. My experience. The last thing I want to do is remove the carbs and clean them on the dinner table. Anyways, after refilling the bowls, either ride around with the bike, or let it idle in the garage, rolling on the throttle a few. Just remembered something, I used marine stabil. That stuff's almost good enough to drink.

[Valkski]

yu really should let the solution soak overnight etc. To start of, yea, flush the carb bowls out repeatedly to knock off any loose gunk and to extricate that and any debris that settled on the bottom of the bowls. The drain spout drains from the bottom of the bowls. My bike sat over a year before I could work on it. From that point, I drained the carb bowls daily through the drain spout and refilled. The jets sit submerged below the fuel level in the bowls. It *speeds up* the process, instead of just having the B-12 infused gasoline in the tank cycling through the carbs. My experience. The last thing I want to do is remove the carbs and clean them on the dinner table. Anyways, after refilling the bowls, either ride around with the bike, or let it idle in the garage, rolling on the throttle a few. Just remembered something, I used marine stabil. That stuff's almost good enough to drink.

  Thanks Ron!
  I have been using Star Tron for years but as folks mentioned on this forum Marine Stabil is the ticket ( I purchased that a short time back) and started using it.
 Thanks
  Rich ( Valk Ski )

[Paladin528]

Sta-bil is for long term storage and is not a cleaner.

[RonW]

okay stabil is for long term storage, but marine stabil is for drinking.

[Valkski]

yu really should let the solution soak overnight etc. To start of, yea, flush the carb bowls out repeatedly to knock off any loose gunk and to extricate that and any debris that settled on the bottom of the bowls. The drain spout drains from the bottom of the bowls. My bike sat over a year before I could work on it. From that point, I drained the carb bowls daily through the drain spout and refilled. The jets sit submerged below the fuel level in the bowls. It *speeds up* the process, instead of just having the B-12 infused gasoline in the tank cycling through the carbs. My experience. The last thing I want to do is remove the carbs and clean them on the dinner table. Anyways, after refilling the bowls, either ride around with the bike, or let it idle in the garage, rolling on the throttle a few. Just remembered something, I used marine stabil. That stuff's almost good enough to drink.

  Thanks Ron!
  I have been using Star Tron for years during the winter storage, as folks mentioned on this forum Marine Stabil is the ticket ( I purchased that a short time back) and started using it.
 Thanks
  Rich ( Valk Ski )

[Valkski]

Just tried something, hope it works.
     I took a can of Berrymans spray and stepped up the hoses (3 more besides the one for the can ) and injected the spray up through the drains into the bowl. Emptied one 16 oz. can into the six bowls 
  Will let that sit for a while and try her out.
  Rich K ( Valk Ski )