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Valkyr01
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« on: October 31, 2012, 07:42:52 PM » |
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First, I really appreciate all the good information on this board. It's helping me get through a carb rebuild.
As long as I have the carb assembly removed, I've been considering the 'desmog' procedure. Besides removing the PAIR and related reeds/hoses/pipes, what adjustments may need to be made to carbs, if any? How is engine performance affected (rougher, higher/lower idle, etc)?
And you've convinced me that the fuel flow control from the stock petcock can be improved upon, so I'm going to install a Dan-marc electric shut-off valve. I'm working on the carbs because #2 cylinder is filling with fuel (hydrolock). #6 was too, but seems to have unstuck. So, even though I've already installed a new petcock, I'd rather overbuild. And it's going to get an in-line filter, too. This is what I get for leaving the valve in 'on' position for 2 months without riding.
Anyone who's 'desmogged', please describe anything else you did to prevent problems.
Thanks,
Joe V.
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2001 Valkyrie Standard (blue/white)
2000 Valkyrie Tourer (black)
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Colin
Member
Posts: 597
My old job
Orba, Spain
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« Reply #1 on: October 31, 2012, 10:38:02 PM » |
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Joe
Nothing. All I did after my desmog was a carb balance to make sure everything was in sync and that was it.
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fordmano
Member
Posts: 1457
San Jose, CA. 1999 I/S 232 miles when bought 11/05
San Jose, CA.
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« Reply #2 on: November 01, 2012, 12:58:55 AM » |
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yep, Nothing at all unless you had a related problem prior to desmog..
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  83GS550 93XR650L TARD! 97WR250 99ValkyrieI/S Tri-tone 01YZ125(x2) 05DRZ-125 |
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Chiefy
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« Reply #3 on: November 01, 2012, 03:40:09 AM » |
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First, I really appreciate all the good information on this board. It's helping me get through a carb rebuild.
As long as I have the carb assembly removed, I've been considering the 'desmog' procedure. Besides removing the PAIR and related reeds/hoses/pipes, what adjustments may need to be made to carbs, if any? How is engine performance affected (rougher, higher/lower idle, etc)?
And you've convinced me that the fuel flow control from the stock petcock can be improved upon, so I'm going to install a Dan-marc electric shut-off valve. I'm working on the carbs because #2 cylinder is filling with fuel (hydrolock). #6 was too, but seems to have unstuck. So, even though I've already installed a new petcock, I'd rather overbuild. And it's going to get an in-line filter, too. This is what I get for leaving the valve in 'on' position for 2 months without riding.
Anyone who's 'desmogged', please describe anything else you did to prevent problems.
Thanks,
Joe V.
Engine performance after a desmog is unaffected. Unless you had a vac leak that the desmog fixes. I didn't have to do anythong to the carbs after I desmogged. A Danmarc with a stock petcock still leaves one route to hydrolock. Via the vac line from the petcock to carb 6. How likely that is to happen. I don't know. But I guess the Danmarc seals off 6 other routes. |
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 1998 Valk Standard 52,500 miles |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #4 on: November 01, 2012, 03:48:24 AM » |
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I'd suggest looking in shop talk or the archives for Normands [Quexpress] article on de-smog.. Its the best one written.. I's also suggest trashing the original petcock and installing a Pingle..
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hubcapsc
Member
Posts: 16788
upstate
South Carolina
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« Reply #5 on: November 01, 2012, 04:24:36 AM » |
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I'd suggest looking in shop talk or the archives for Normands [Quexpress] article on de-smog.. Its the best one written.. I's also suggest trashing the original petcock and installing a Pingle..
 on the Quexpress article being complete. Now that I have desmogged mine, and helped to replace all the vacuum lines on Stanley Steamer's bike, I kind of wish I'd left all that original stuff on mine. Other than removing a bunch of stuff, desmogg is a no-op... I like the OEM petcock  I can't relate to removing a bunch of OEM tubes and valves and replacing them with a bunch of other tubes and valves... -Mike |
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Red Diamond
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« Reply #6 on: November 01, 2012, 12:57:20 PM » |
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I'd suggest looking in shop talk or the archives for Normands [Quexpress] article on de-smog.. Its the best one written.. I's also suggest trashing the original petcock and installing a Pingle..
on the Quexpress article being complete. Now that I have desmogged mine, and helped to replace all the vacuum lines on Stanley Steamer's bike, I kind of wish I'd left all that original stuff on mine. Other than removing a bunch of stuff, desmogg is a no-op... I like the OEM petcock I can't relate to removing a bunch of OEM tubes and valves and replacing them with a bunch of other tubes and valves... -Mike Well said, waste of time and money. |
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 If you are riding and it is a must that you keep your eyes on the road, you are riding too fast. |
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Dozer
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« Reply #7 on: November 01, 2012, 02:23:25 PM » |
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I did nothing. After the carb rebuild and syncing I rode it 800 miles since then and no issues at all except for losing a source for vacuum leaks and cleaning up the general appearence under the carb bank.
I used Dead Eyes shiney desmog kit. Mileage is very slightly improved but thats probably due to the carbs. So far, its all good.
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Valkyr01
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« Reply #8 on: November 01, 2012, 05:25:50 PM » |
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Thanks to all for their input.
Conclusions - 1) desmog process doesn't affect drivability
2) questionable benefits - doesn't improve anything, (but probably pollutes more?), maybe better gas mileage?
3) less parts to worry about (i.e. vaccuum lines, etc)
Joe V.
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2001 Valkyrie Standard (blue/white)
2000 Valkyrie Tourer (black)
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Dozer
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« Reply #9 on: November 02, 2012, 12:30:53 PM » |
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Thats correct but I believe someone here said that the Valk would pass todays emission test even before the smog kit was required. So as for more pollution, its doubtful but I couldnt say for certain.
Besides that, with the age of the bike, whatever the EPA does would probably have the Valk grandfathered into some older pollution clause anyway...IMHO
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sugerbear
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« Reply #10 on: November 02, 2012, 03:14:49 PM » |
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i believe the answer is " the solution to pollution is dilution"
our smog systems just pumped more air into the exhaust, lowering the ppm.
not the total amount put out. that would require a catalytic converter.
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