jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« on: March 07, 2011, 05:53:38 PM » |
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When I am driving and release the gas, or just reving the motor, it takes 2-3 seconds for the engine to get back to idle speed. Is this normal or do I need to be looking for something to fix.
Thanks in advance for your responses.
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Let the Fun Begin. 99 Valk 98 magna-sold   Jim MOOT #610 VRCC #30250 |
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bigdog99
Member
Posts: 584
1/1/2011 86,000 miles
Kouts Indiana
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« Reply #1 on: March 07, 2011, 06:08:26 PM » |
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have you had any carb work done lately? sounds like the carbs are out of sync.
the only other thing is to make sure the throttle is springing back, the grip and the cable.
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 VRCC#31391 VRCCDS0239 |
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #2 on: March 07, 2011, 06:12:25 PM » |
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the carbs were sinced in nov/dec. The grip is because I am making sure it is. I have not checked the cable. Could something in the vacuum cause it.
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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bigdog99
Member
Posts: 584
1/1/2011 86,000 miles
Kouts Indiana
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« Reply #3 on: March 07, 2011, 06:14:49 PM » |
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if there is a leak then the carb sync isnt good.
make sure one of the vac hoses didnt come off. you may even have a crack in one of them. also check the one to the bottom of the gas tank from #6.
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VRCC#31391 VRCCDS0239 |
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #4 on: March 07, 2011, 06:32:03 PM » |
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i have done the desmog. I will look at the other hoses tomorrow thanks for the info
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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Old Geezer Richard
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« Reply #5 on: March 08, 2011, 10:53:14 AM » |
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Hey jimmivalk , take a look at your throttle in how its working ..... when you revive it up does your throttle spring back smooth or does it hang-up a little before going back to idle .... when was the last time you lubed both cables ? just something to think about .... Thanks the Geezer  |
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If you don't care where you're going, then you ain't lost , Murphy's Law because wherever you are going to , it ain't going nowhere .... San Antonio,Tx.
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Bobbo
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« Reply #6 on: March 08, 2011, 11:10:50 AM » |
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You are describing a classic symptom of a vacuum leak. Check the hoses and caps.
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #7 on: March 08, 2011, 12:10:11 PM » |
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ok my hoses look good. I do have a question. There are 2 tubes on the bottom side of motor. They look like overflow hoses from tank. One is larger and one smaller. Is the large one suppose to be capped off? So what are thise hoses
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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Bobbo
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« Reply #8 on: March 08, 2011, 12:34:38 PM » |
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ok my hoses look good. I do have a question. There are 2 tubes on the bottom side of motor. They look like overflow hoses from tank. One is larger and one smaller. Is the large one suppose to be capped off? So what are thise hoses
They are vent tubes. One is for the gas tank, and the other is a crankcase vent, which is capped. You should drain the crank vent when you do an oil change. Other than the hoses, the rubber coupling from the carb to the intake runner can get loose, as well as the O rings that seal the runner to the head. Check for loose clamps, and the nuts that hold the runner to the head. You can use the old "starter fluid method" to look for leaks too. |
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #9 on: March 08, 2011, 02:59:36 PM » |
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I took the plug out and out poured crap. I guess i will replace all the lines and plugs next. I a not a mechanic so what is the starter fluid method? Thanks everyone for the help
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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Ghillie
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« Reply #10 on: March 08, 2011, 03:10:22 PM » |
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Definitely check the throttle tube and cables, that is how my problem started was a slow return to idle.
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When the people fear government, there is tyranny. When government fears the people, there is liberty.  |
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john
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« Reply #11 on: March 08, 2011, 03:16:05 PM » |
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Definitely check the throttle tube and lube cables ...  easy stuff first ,,,,  |
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vrcc # 19002
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Pete
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« Reply #12 on: March 08, 2011, 03:45:42 PM » |
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If it is not mechanical - cables, linkage, sync, then you have a lean condition.
Could be vaccum leak as some have suggested. Making a lean condition.
Check all intake joints for any leaks as that can also make a lean condition.
Dirty carbs usually make a lean condition.
If you make the pilots richer and the condition improves then it is definitely lean condition.
If you run with the choke barely on and the condition improves - lean condition.
Keep looking you will find it
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #13 on: March 08, 2011, 05:14:34 PM » |
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what do i lube cables with. I know i am asking some questions I should know the answer to. Sorry
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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wizard -vrccds#125
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« Reply #14 on: March 08, 2011, 05:28:39 PM » |
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Many go cable lubes out there. DO NOT use starter fluid to check for vacume leakes  , you may not have a Valk to worrie about if you use that. But you can use carb cleaner( much less chance for a fire) spray a little around the base of the intake runner and see if the idle goes up. It will work on your vacume lines as well. Just try to spray one at a time and listen to the idle,you will know if the idle changes. |
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Westsider
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« Reply #15 on: March 08, 2011, 05:34:24 PM » |
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like everyone says...probly your cables...{not running}-twist the grip and make SURE it snaps back ALL the way immediately when you let go...that would need to be addressed asap...if not sooner.. |
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« Last Edit: March 08, 2011, 05:37:36 PM by Paul »
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we'll be there when we get there - Valkless,, on lookout....
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Houdini
Member
Posts: 1975
VRCC #28458 - VRCCDS#144
Allen, TX
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« Reply #16 on: March 08, 2011, 06:11:52 PM » |
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DO NOT use starter fluid to check for vacume leakes I think Bobbo is talking about ether starting fluid, not the stuff you use to start your BBQ grill |
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"A Camera And A Bike....What More Do I Need?  |
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Bobbo
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« Reply #17 on: March 08, 2011, 08:36:40 PM » |
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DO NOT use starter fluid to check for vacume leakes I think Bobbo is talking about ether starting fluid, not the stuff you use to start your BBQ grill Ha! Yes, ether starting fluid!  Carb cleaner works well, too. |
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franco6
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« Reply #18 on: March 08, 2011, 10:31:13 PM » |
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chek the manual, there s a chapter on oiling the throttle cables  |
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Enjoy the ride!
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PhredValk
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« Reply #19 on: March 08, 2011, 11:28:07 PM » |
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At dead closed throttle, what is she idling at? I understand this can happen if the idle is set too high, like to ensure a high output alternator is charging at idle.
Fred.
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Growing old is mandatory, growing up is optional.
VRCCDS0237
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #20 on: March 09, 2011, 05:27:59 AM » |
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At dead closed throttle, what is she idling at? I understand this can happen if the idle is set too high, like to ensure a high output alternator is charging at idle.
Fred.
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #21 on: March 09, 2011, 05:30:02 AM » |
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like everyone says...probly your cables...{not running}-twist the grip and make SURE it snaps back ALL the way immediately when you let go...that would need to be addressed asap...if not sooner.. It pops back all the way with no hesitation |
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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Westsider
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« Reply #22 on: March 09, 2011, 12:53:46 PM » |
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It pops back all the way with no hesitation......it must be vacume leaks then...intakes; check make sure they are snug', vac. cap plugs on the back side of the intakes.cracked //and the vac lines themselves....  |
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we'll be there when we get there - Valkless,, on lookout....
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #23 on: March 09, 2011, 01:02:29 PM » |
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ok think i may have solved the problem. When i sprayed starter fluid at the connection next to the tank the engine began to rev faster. Ran for a few seconds fast then slowed back down. Could this be the problem, did not get any change when sprayed around carbs, runners or caps.
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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Bobbo
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« Reply #24 on: March 09, 2011, 01:16:37 PM » |
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Which connection? The one to the petcock?
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #25 on: March 09, 2011, 01:25:42 PM » |
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Which connection? The one to the petcock?
yes |
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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Bobbo
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« Reply #26 on: March 09, 2011, 01:31:49 PM » |
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If the vacuum lines are still good going to it, clamp (pinch) the line near the engine. If the engine RPM goes up a little when clamped, you probably have a leaking diaphragm in the petcock. I think a rebuild kit is available.
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jimnvalk
Member
Posts: 264
Four wheels move the body, 2 wheels move the soul
Van, Texas
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« Reply #27 on: March 09, 2011, 02:17:36 PM » |
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If the vacuum lines are still good going to it, clamp (pinch) the line near the engine. If the engine RPM goes up a little when clamped, you probably have a leaking diaphragm in the petcock. I think a rebuild kit is available.
Clamping the line did not cause the rpms to go up |
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Let the Fun Begin. 99 Valk 98 magna-sold Jim MOOT #610 VRCC #30250 |
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