|
1NorthRyder
|
 |
« on: May 23, 2018, 03:52:09 AM » |
|
Over the winter I rebuilt the carbs, desmogged, installed an adjustable ECM and installed a K&N air filter. When decelerating or sitting at idle after the old gurl is warmed up there is in my opinion a very mild popping from the exhaust. When the carbs were done I set the pilot screw at 2 turns out and synced the carbs with a Digi-sync. I think the bike is running very well but wondering if I should care about the mild popping and if so what do think I should look at first. I'm leaving in two days for a two week bike trip which is why I was wondering.
|
|
|
|
|
Logged
|
|
|
|
|
sandy
|
|
« Reply #1 on: May 23, 2018, 08:48:14 AM » |
|
I wouldn't worry about MILD popping. Desmogging enrichens the exhaust which might cause the popping you are hearing.
|
|
|
|
|
Logged
|
|
|
|
Locomotive
Member
Posts: 41
99 Valkyrie: the Locomotive
Vermont, USA
|
|
« Reply #2 on: May 23, 2018, 07:57:36 PM » |
|
1NorthRyder - do you mind sharing details on what kind of 'adjustable ECM you installed and where you got it? Thanks
|
|
|
|
|
Logged
|
New (early '18) owner of a well kept '99 Valk Std in Yellow/Pearl. Other mechanized madnesses include a '14 Ural 2wd sidecar rig, an '81 Honda GL500 for my son to ride when out with me, a '51 Dodge M37, and a barn-full of other mechanical projects in the works
|
|
|
|
1NorthRyder
|
|
« Reply #3 on: May 24, 2018, 04:05:04 AM » |
|
Found it on here, steve.a.glow@gmail.com, I can't remember what the link was called but this was his email. It was a plug & play mod which advances the timing. I haven't ridden enough yet this year to see what effect it will have but hope to try a few different settings while on my trip. |
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #4 on: May 24, 2018, 08:52:07 AM » |
|
The popping is a result of the desmog. Since you are no longer introducing air into the exhaust stream the excess unburned fuel does not burn off like it once did. Once the atmosphere is right in the exhaust it pops. mine rumbles as well.
you can adjust the pilot screws out about a quarter turn and that will lessen but not eliminate it.
I am actually RE-Smogging my ride because of this.
|
|
|
|
|
Logged
|
|
|
|
|
The emperor has no clothes
|
|
« Reply #5 on: May 24, 2018, 11:50:12 AM » |
|
The popping is a result of the desmog. Since you are no longer introducing air into the exhaust stream the excess unburned fuel does not burn off like it once did. Once the atmosphere is right in the exhaust it pops. mine rumbles as well.
you can adjust the pilot screws out about a quarter turn and that will lessen but not eliminate it.
I am actually RE-Smogging my ride because of this.
I have doubts about that theory. I have a Standard that had slight popping on deceleration before a desmog. It is less after the desmog. I have an Interstate that has never had the popping before or after desmog. |
|
|
|
|
Logged
|
|
|
|
LB
Member
Posts: 84
2003
Upstate South Carolina
|
|
« Reply #6 on: May 24, 2018, 01:17:22 PM » |
|
I doubt it also... Mine was popping, I desmoged it and that ended all the popping.
|
|
|
|
|
Logged
|
|
|
|
Houdini
Member
Posts: 1975
VRCC #28458 - VRCCDS#144
Allen, TX
|
|
« Reply #7 on: May 24, 2018, 02:19:32 PM » |
|
I've desmogged both of mine, neither of them has any popping.
|
|
|
|
|
Logged
|
"A Camera And A Bike....What More Do I Need?  |
|
|
|
Mapper
|
|
« Reply #8 on: May 24, 2018, 02:31:14 PM » |
|
Sometimes mine pops before I switch to RESERVE.  |
|
|
|
|
Logged
|
|
|
|
|
Bighead
|
|
« Reply #9 on: May 24, 2018, 02:32:55 PM » |
|
Desmogged my standard and no pop before or after.
|
|
|
|
|
Logged
|
1997 Bumble Bee
1999 Interstate (sold)
2016 Wing
|
|
|
Willow
Administrator
Member
Posts: 16607
Excessive comfort breeds weakness. PttP
Olathe, KS
|
|
« Reply #10 on: May 25, 2018, 11:22:36 AM » |
|
Over the winter I rebuilt the carbs, desmogged, installed an adjustable ECM and installed a K&N air filter. ...
If the "adjustable ECM" you installed is a Dyna 3000 there are certain positions you should not go to without highly modified exhaust. Let me know if that's what you have and I can email you the write up regarding the Dyna 3000 for the Valkyrie. |
|
|
|
|
Logged
|
|
|
|
|
bikerboy1951
|
|
« Reply #11 on: May 25, 2018, 11:26:17 AM » |
|
All motorcycles pop when decelerating. It is just that with the stock exhaust you can't hear it. The more you modify the exhaust the louder and more apparent it becomes. With Cobra or others it starts as soon as you install it.
Brad
|
|
|
|
|
Logged
|
|
|
|
|
da prez
|
|
« Reply #12 on: May 25, 2018, 03:39:45 PM » |
|
Retorque the exhaust bolts. I have de-smogged many bikes with no complaints.
da prez
|
|
|
|
|
Logged
|
|
|
|
|
Kokomo Kevin
|
|
« Reply #13 on: May 25, 2018, 05:59:36 PM » |
|
Interested in setting's comments for Dyna 3000 Ignition module, I have had one for 15 years and have never heard of settings that were not suggested without a modified exhaust, Can anyone enlighten me with any further information? I do run a Viking Exhaust system BTW.
|
|
|
|
|
Logged
|
|
|
|
|
Kokomo Kevin
|
|
« Reply #14 on: May 26, 2018, 01:50:25 PM » |
|
Willow,
Thanks for information, I do indeed recall the information you sent me, when I bought the Dyna 3000 some 15 years ago. Just for everybody else when you use some advanced timing positions on the Dyna, You need to use a good premium fuel. Remember our bikes do not have Knock sensors that detect
and automatically adjust the timing. Our bikes were born just prior to computer ECM's. I do indeed run premium fuel, and additionally add Lucas octane boost as well, when I want to whip some Harley ASS's
|
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #15 on: May 28, 2018, 05:26:33 AM » |
|
If you are running a Stock ignition system then running premium fuel and an octane booster is just a recipe for an expensive power loss.
High octane does not give you more power in fact the octane requirements are a requirement of the engine not the other way around.
Our bikes have a LOW compression ratio. 9.5:1 which means we do not require the detonation inhibiting octane in our fuel. If you mess with the timing you are inducing "detonation" by igniting the fuel prior to TDC so you counteract that by running higher octane fuel to slow the burn down so full burn takes place in the same spot as when the unmolested system ran on regular.
I never really under stood this process as you are advancing the timing only to retard the burn.
To me that is just expense for no actual gain. I would need to see dyno numbers to verify it actually does anything significant.
one would be far better off to shave the heads and actually increase the compression ratio and runn high octane fuel to get the power desired.
|
|
|
|
|
Logged
|
|
|
|
|
northernvalk
|
|
« Reply #16 on: May 28, 2018, 06:44:47 AM » |
|
Enthanol................the reason I run shell v power whenever possible
|
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #17 on: May 28, 2018, 07:17:48 AM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
|
|
|
|
|
Logged
|
|
|
|
|
northernvalk
|
|
« Reply #18 on: May 29, 2018, 06:02:04 AM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Ethanol eats carbs.....Id rather spend a little extra and avoid the headaches..... |
|
|
|
|
Logged
|
|
|
|
|
Ricky-D
|
|
« Reply #19 on: May 29, 2018, 09:42:47 AM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Wrong. The Valkyrie was not designed to run on ethanol enriched gasoline. December 2007 Energy Independence and Security Act signed by Congress and the President, which requires the use of 15 billion gallons of renewable (ethanol) fuel by 2015. In 2007 about 6.5 billion gallons were produced. 2007-2008 Surge in individual states mandating the use of 10% ethanol E10 gasoline. *** |
|
|
|
|
Logged
|
2000_Valkyrie_Interstate
|
|
|
|
Cracker Jack
|
|
« Reply #20 on: May 29, 2018, 09:53:42 AM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Ethanol eats carbs.....Id rather spend a little extra and avoid the headaches..... My carbs are about 20 years old and have lived off of a steady diet of ethanoil fuel all their life.They appear to be in perfect condition and the bike runs great. I guess this carb eating goes on from the inside. Do you think I'm on borrowed time? What do you suggest I start doing differently at this point to avoid the certain headaches I'm facing in the future? Is using 100% gasoline the only answer? That's not very convenient in my location.  |
|
|
|
|
Logged
|
|
|
|
|
Mapper
|
|
« Reply #21 on: May 29, 2018, 05:28:10 PM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Ethanol eats carbs.....Id rather spend a little extra and avoid the headaches..... My carbs are about 20 years old and have lived off of a steady diet of ethanoil fuel all their life.They appear to be in perfect condition and the bike runs great. I guess this carb eating goes on from the inside. Do you think I'm on borrowed time? What do you suggest I start doing differently at this point to avoid the certain headaches I'm facing in the future? Is using 100% gasoline the only answer? That's not very convenient in my location. Any idea on how many miles the carbs are good for before being damaged? I've got about 65k on mine so far. What part gets damaged? Is it something easily replaced, like the jets? |
|
|
|
|
Logged
|
|
|
|
|
The emperor has no clothes
|
|
« Reply #22 on: May 29, 2018, 09:15:59 PM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Ethanol eats carbs.....Id rather spend a little extra and avoid the headaches..... My carbs are about 20 years old and have lived off of a steady diet of ethanoil fuel all their life.They appear to be in perfect condition and the bike runs great. I guess this carb eating goes on from the inside. Do you think I'm on borrowed time? What do you suggest I start doing differently at this point to avoid the certain headaches I'm facing in the future? Is using 100% gasoline the only answer? That's not very convenient in my location. Any idea on how many miles the carbs are good for before being damaged? I've got about 65k on mine so far. What part gets damaged? Is it something easily replaced, like the jets? In my opinion, the best thing for the carbs is to run fuel thru them. Sitting is hard on them. |
|
|
|
|
Logged
|
|
|
|
|
Hook#3287
|
|
« Reply #23 on: May 30, 2018, 02:17:26 AM » |
|
Retorque the exhaust bolts. I have de-smogged many bikes with no complaints.
da prez
I've desmogged 6 Valks to date and none of them pop on deceleration. I also changed the slows to 38's.* I run corn gas because ya can't get the good stuff in my nanny state. Well, you can , just few and far between. I add stabaul marine in the fall for storage. That's it. This spring, even after sitting for up 7 months, they all fired right up. They all run excellent. When not adding stability chems , meatheads suggestion rings true, just ride em. *i know it's claimed that will add to carbon build up, but it probably won't be a issue in my lifetime, if true. |
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #24 on: May 30, 2018, 06:18:56 AM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Wrong. The Valkyrie was not designed to run on ethanol enriched gasoline. December 2007 Energy Independence and Security Act signed by Congress and the President, which requires the use of 15 billion gallons of renewable (ethanol) fuel by 2015. In 2007 about 6.5 billion gallons were produced. 2007-2008 Surge in individual states mandating the use of 10% ethanol E10 gasoline. *** READ YOUR OWNERS MANUAL |
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #25 on: May 30, 2018, 06:22:10 AM » |
|
My bike gets fuel containing 10% or less ethanol every fill up and sits with a full stabilized tank of it for 6 months a year during winter.
Last year I tore the carbs down because I had no idea of the PO service history. They were spotless. I still did a thorough cleaning and rebuild of them.
No sign of them being eaten at all.
|
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #26 on: May 30, 2018, 06:35:55 AM » |
|
Page 26 of the Owners manual.
ETHANOL (ethyl grain alcohol) 10% by volume
you may use gasoline containing up to 10% ethanol by volume/ Gasoline containing ethanol may be marketed under the name "Gasohol".
MTBE (Methyl Tertiary Butyl Ether)
15% by volume.
You may use gasoline containing up to 15% MTBE by volume.
METHANOL (Methyl or Wood Alcohol) 5% by volume
You may use gasoline containing up to 5% methanol by volume as long as it also contains cosolvents and corrosion inhibitors to protect the fuel system.
Gasoline containing more than 5% methanol by volume may cause starting and /or performance problems. it may also damage metal, rubber, and plastic parts of your fuel system.
In Canada Ethanol is the additive of choice for oxygenated fuels. The maximum content in Canadian Gasoline is 10%. Even some Top Tier premium Gas contains up to 10% Ethnaol by volume.
|
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #27 on: May 30, 2018, 06:43:37 AM » |
|
Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Wrong. The Valkyrie was not designed to run on ethanol enriched gasoline. December 2007 Energy Independence and Security Act signed by Congress and the President, which requires the use of 15 billion gallons of renewable (ethanol) fuel by 2015. In 2007 about 6.5 billion gallons were produced. 2007-2008 Surge in individual states mandating the use of 10% ethanol E10 gasoline. *** There are many other countries in the world besides the USA. They are built for the world market. |
|
|
|
|
Logged
|
|
|
|
Daniel Meyer
Member
Posts: 5492
Author. Adventurer. Electrician.
The State of confusion.
|
|
« Reply #28 on: May 30, 2018, 12:22:05 PM » |
|
Page 26 of the Owners manual.
ETHANOL (ethyl grain alcohol) 10% by volume
you may use gasoline containing up to 10% ethanol by volume/ Gasoline containing ethanol may be marketed under the name "Gasohol".
MTBE (Methyl Tertiary Butyl Ether)
15% by volume.
You may use gasoline containing up to 15% MTBE by volume.
METHANOL (Methyl or Wood Alcohol) 5% by volume
You may use gasoline containing up to 5% methanol by volume as long as it also contains cosolvents and corrosion inhibitors to protect the fuel system.
Gasoline containing more than 5% methanol by volume may cause starting and /or performance problems. it may also damage metal, rubber, and plastic parts of your fuel system.
In Canada Ethanol is the additive of choice for oxygenated fuels. The maximum content in Canadian Gasoline is 10%. Even some Top Tier premium Gas contains up to 10% Ethnaol by volume.
Excellent post! Facts and everything! (thanks!!) Our Valkyries were designed to run on fuel with ethanol content up to 10%. I don't have issue with it. However I am in Canada and we cannot get fuel with greater than 10% anyway. Not like the US which has all kinds of horrible fuel available.
Another However here... Ethanol behaves like octane in that it contains less energy so also acts as burn inhibitor.
Ethanol eats carbs.....Id rather spend a little extra and avoid the headaches..... My carbs are about 20 years old and have lived off of a steady diet of ethanoil fuel all their life.They appear to be in perfect condition and the bike runs great. I guess this carb eating goes on from the inside. Do you think I'm on borrowed time? What do you suggest I start doing differently at this point to avoid the certain headaches I'm facing in the future? Is using 100% gasoline the only answer? That's not very convenient in my location. Any idea on how many miles the carbs are good for before being damaged? I've got about 65k on mine so far. What part gets damaged? Is it something easily replaced, like the jets? I'll let you know...someday. I'm going on a quarter-million miles so far without touching them... (running lots of fuel keeps 'em clean!!) |
|
|
|
|
Logged
|
CUAgain, Daniel Meyer  |
|
|
|
Hook#3287
|
|
« Reply #29 on: May 31, 2018, 03:19:09 AM » |
|
Page 26 of the Owners manual.
ETHANOL (ethyl grain alcohol) 10% by volume
you may use gasoline containing up to 10% ethanol by volume/ Gasoline containing ethanol may be marketed under the name "Gasohol".
MTBE (Methyl Tertiary Butyl Ether)
15% by volume.
You may use gasoline containing up to 15% MTBE by volume.
METHANOL (Methyl or Wood Alcohol) 5% by volume
You may use gasoline containing up to 5% methanol by volume as long as it also contains cosolvents and corrosion inhibitors to protect the fuel system.
Gasoline containing more than 5% methanol by volume may cause starting and /or performance problems. it may also damage metal, rubber, and plastic parts of your fuel system.
In Canada Ethanol is the additive of choice for oxygenated fuels. The maximum content in Canadian Gasoline is 10%. Even some Top Tier premium Gas contains up to 10% Ethnaol by volume.
This has been discussed in past posts, but it's good to rehash issues. My belief is the bikes were engineered to RUN on corn gas, their NOT engineered to SIT with corn gas in their carbs. I remember many problems coming from the mandated gas, especially in the marine industry. |
|
|
|
|
Logged
|
|
|
|
|
Paladin528
|
|
« Reply #30 on: May 31, 2018, 04:15:19 AM » |
|
ANY gasoline left to sit will go bad. ANY Fuel left to "breathe" in a tank will accumulate water which will settle to the bottom of the tank (This is why Airplane fuel tanks are "dripped" every day.
Water is the big enemy here as it will readily cause the ethanol to separate from the gasoline.
This is why it is my practice to always start the bike with the petcock selected to reserve and run it like that for several minutes (NOTE: remember to change it to ON otherwise its a long walk to the gas station)
This will take the water from the bottom of the tank and send it to the carbs first thus eliminating the issue with corrosion and phase separation. It is the equivalent of "dripping" the tank. It is also a good practice to empty the tank periodically (preferable with fuel readily available).
As was stated above Sitting is never good for any machine. Ride the thing.
|
|
|
|
|
Logged
|
|
|
|
Daniel Meyer
Member
Posts: 5492
Author. Adventurer. Electrician.
The State of confusion.
|
|
« Reply #31 on: May 31, 2018, 06:31:06 AM » |
|
What is this "sit" you guys are talking about? |
|
|
|
|
Logged
|
CUAgain, Daniel Meyer |
|
|
|
Dirty Dave
|
|
« Reply #32 on: May 31, 2018, 05:52:20 PM » |
|
 Good one Dan.
|
|
|
|
|
Logged
|
|
|
|
|
Hook#3287
|
|
« Reply #33 on: June 01, 2018, 05:56:05 AM » |
|
What is this "sit" you guys are talking about? Can only ride one at a time. |
|
|
|
|
Logged
|
|
|
|
|
