slight bog at 15-2000rpm when shifting


Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
'ol pappy t
Posts: 18
Joined: Mon Jan 24, 2011 9:09 pm
Location: Huntley IL
Motorcycle: 1982 GL1100A Aspencade

slight bog at 15-2000rpm when shifting

Postby 'ol pappy t » Sun Aug 21, 2011 9:41 am



Hi all , had my carbs sonic cleaned,rebuilt and sync'd, bike runs good. I do get a slight bog when shifting around 2000 rpm though up to 2500 rpm, not much of a bog but just enough to notice you don't have instant throttle, it picks up real quick when you pass that little peak. I've been told and have read that these 1100s like a higher rpm shift range like around 3000rpm range... any thoughts ? After running it awhile it is somewhat boggy when revving it up when stopped , changed filter emptied bowls and am running Techron through it seemed to help a bit ( using seafoam too ) thing the two are related ?? Thanks for any input, have a good one and be safe.



RexAubrey
Posts: 110
Joined: Fri Apr 22, 2011 11:05 am
Location: Aldan, PA
Motorcycle: 1983 GL1100I GoldWing Interstate (Black)
1982 GL1100A GoldWing Aspencade (Maroon)
1981 Yamaha XJ550H Maxim (Black)
1979 Yamaha XS650SF Special (Black)

Re: slight bog at 15-2000rpm when shifting

Postby RexAubrey » Sun Aug 21, 2011 8:38 pm

Hey pappy,
I have a 83 GL1100 and it definitely likes the rpm's up around 3000. anything below 2500 and it is bogging down from 2500 to 3000 it is still a little doggish. these goldwings like the high rpm's. you will get use to the sound of it after a while.
Rex
1983 GoldWing Interstate, 1982 GoldWing Aspencade, 1981 Yamaha 550 Maxim, 1979 Yamaha 650 Special

'ol pappy t
Posts: 18
Joined: Mon Jan 24, 2011 9:09 pm
Location: Huntley IL
Motorcycle: 1982 GL1100A Aspencade

Re: slight bog at 15-2000rpm when shifting

Postby 'ol pappy t » Sun Aug 21, 2011 9:22 pm

Thanks for the reply Rex, found a loose ( real loose ) clamp on one of the carbs and after I tightened it up and took it out for a test run, it actually was worse on lower end rpms, slight bog on throttle up from idle now. Well, it's off to re sync the carbs again in the morning, hope that clamp was the culprit... stay tuned ! PS.. when I had it out it did seem alot better by keeping the rpms up around 3000, I'll pass this along for others in this situation , and to the future owner too !! Thanks again, as I said before , this one of the best sites around.

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: slight bog at 15-2000rpm when shifting

Postby littlebeaver » Mon Aug 22, 2011 4:21 am

Vacuum advance....Maybe :D good luck to ya....

'ol pappy t
Posts: 18
Joined: Mon Jan 24, 2011 9:09 pm
Location: Huntley IL
Motorcycle: 1982 GL1100A Aspencade

Re: slight bog at 15-2000rpm when shifting

Postby 'ol pappy t » Mon Aug 22, 2011 7:46 am

Hi Littlebeaver, I pinched that line off and revved up several times and it did'nt seem to make a difference, does it work under load and not just revving it up ? I suppose I'll try that after sync today if sync does'nt make a difference. Thanks for the input.

User avatar
detdrbuzzard
Posts: 921
Joined: Thu Oct 23, 2008 5:54 am
Location: 42.23/83.33/636
Motorcycle: '84 aspencade,'93se
'75750.'79750/9k
'79 750f.'85450sc
'06 st1300a

Re: slight bog at 15-2000rpm when shifting

Postby detdrbuzzard » Mon Aug 22, 2011 12:13 pm

none of the 4cylinder wings have much grunt under 2500 rpm
'99 ST1100, '93 se
'75 cb750k, '79 cb 750f, '79 cb750 superK
cb 450sc, sunL70
'06 st1300a
.... william

'ol pappy t
Posts: 18
Joined: Mon Jan 24, 2011 9:09 pm
Location: Huntley IL
Motorcycle: 1982 GL1100A Aspencade

Re: slight bog at 15-2000rpm when shifting

Postby 'ol pappy t » Mon Aug 22, 2011 1:24 pm

Thanks for the reply Buzzard, all I have is a sigh of relief now that the carbs were resync'd and that took care of the bog issue !! Turned out it was a loose clamp on a carb and when he hooked up the thermometer to the carbs, voila.. the carb with the loose clamp showed in a heartbeat and all has ended well ! Kept in mind on the way home about keeping up around 3000+ and it really did the duty very well, thanks to all and their weath of info... too bad it can't make us all rich ,ya know !! Smart at all the wrong stuff I guess. As the great George Carlin once said ' too bad that the people that could run this country are all busy cutting hair and driving taxi cabs ! ' Thanks again to all...

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: slight bog at 15-2000rpm when shifting

Postby littlebeaver » Tue Aug 23, 2011 2:08 pm

detdrbuzzard wrote:none of the 4cylinder wings have much grunt under 2500 rpm

Mine does... :D :lol: :lol: It was Wingadmin. fault too..
Last edited by littlebeaver on Tue Aug 23, 2011 2:24 pm, edited 2 times in total.

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: slight bog at 15-2000rpm when shifting

Postby littlebeaver » Tue Aug 23, 2011 2:20 pm

'ol pappy t wrote:Hi Littlebeaver, I pinched that line off and revved up several times and it did'nt seem to make a difference, does it work under load and not just revving it up ? I suppose I'll try that after sync today if sync does'nt make a difference. Thanks for the input.

Hi Ol pappy, if you want to see if your vacuum advance is functioning just pull the hose going into the carb hold your finger over the hose nipple on the carb or block it off, then suck on the vacuum hose while the engine is running, you should hear an increase in the idle rpm's while sucking on the hose this would mean your vacuum advance is advancing, if it doesn't rev a little then it's not functioning... Yep, loose stuff on the carb could create problems...Glad you found it and it was a simple fix, You could also just test the vacuum advance with a hand pump too like a mitty vac..That will show if it's holding a vacuum or not... :D

'ol pappy t
Posts: 18
Joined: Mon Jan 24, 2011 9:09 pm
Location: Huntley IL
Motorcycle: 1982 GL1100A Aspencade

Re: slight bog at 15-2000rpm when shifting

Postby 'ol pappy t » Tue Aug 23, 2011 2:45 pm

Good to know, bikes running well now. What effect does the v/a have at higher rpm's or revving up at idle ?? Just to know what to look for . Thanks Beav.

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: slight bog at 15-2000rpm when shifting

Postby littlebeaver » Tue Aug 23, 2011 2:57 pm

'ol pappy t wrote:Good to know, bikes running well now. What effect does the v/a have at higher rpm's or revving up at idle ?? Just to know what to look for . Thanks Beav.

The effect is up to about 3000 rmp what happens is that diaphragm in the canister under vacuum activates the pickup coils in the inside getting more grunt under a load the pickup coils should be fully open at 3000 rpm and up, it helps when you have a passenger when you take off from a stop, they put it there for a reason...Some say you won't notice a difference, and just plug off at the carb...I'm here to tell you that this guy noticed a big difference on his bike right away and besides why would anyone not want their pickup coils and advance not working isn't it part of your engine performance ...Just saying ...ha ha :lol: Hey to each their own is what I say..You should do as you wish to do please don't let me influence you as I'm not a expert.... :lol: My bike sure runs good though :lol:




Return to “GL1100 Information & Questions”




Who is online

Users browsing this forum: MSNbot Media [Bot] and 2 guests