Throttle sticking as such !

[Guest]

Well... I managed to re build my carbs hell yea !!!
But... When I rev her to say 4000 the engine takes sometime to slowly drop back to idle speed.

Is this air entering the carbs ?
Can it be anything else ?
It may be the carb boots, what's the best stuff to seal them ?

X

[Sexysuzi]

Bike is a 79 gs550

[chuck hahn]

Did you lube the throttle linkages where they pass thru each body? Are the intake boot orings replaced and not pinched in between the boot and head? Cracks in the intake boots? At an idle, spray some ether on the intake boots and see if the RPMs go up...that will tell if thefres any leaks there. Are the throttle cables lubed and routed correctly? Any gunk in the throttle handle where it turns in the switch housing?

[chuck hahn]

I wouldnt bother trying to "seal" carb intake boots..I would buy new ones and be done with them for the next 30 years.

[Sexysuzi]

No I did not lube the linkages.. I never removed the carbs from the links/rack.

Shell give them a spray and find out... Anyone know where I can buy new boots from ???

[DanTheMan]

No I did not lube the linkages.. I never removed the carbs from the links/rack.

Shell give them a spray and find out... Anyone know where I can buy new boots from ???

If you never removed the carbs from the rack, you had to have missed cleaning a few spots and replacing old o-rings. From your description, you've got air leaks holding your rpm high.
Boots are available through several suppliers that BassCliff has links to on his welcome aboard page (y'know, bikecliff page?).

Check it out.

[hampshirehog]

There are no shortcuts when cleaning carbs on these bikes. Many have tried and many have failed. You need to do the job properly before looking at anything else. Just squirting some cleaner round isn't 'properly'.

[Sexysuzi]

I stripEd down the carbs, re-jetted, all new jets etc etc. I could not see the benefits of removing from the rack... What o rings are we talking about ? Maybe I missed them.... ! I did much more than spray about 4 hours of work !!

[hampshirehog]

I strip down the carbs, re-jetted, all new jets, crb re build kit etc etc. I could not see the benefits of removing from the rack... What o rings are we talking about ? Maybe I missed them.... !

You didn't strip the carbs and clean them properly if you didn't pull them from the rack and you didn't see those O rings. Like I said, there are no shortcuts.

You won't need carb kits or new jets - just the o rings

[cowboyup3371]

You'll see the orings when you pull the needle jet out, each of the fuel connectors between the carbs, under the intake boots, and around the mixture screws. If you did not pull them off the rack, then you did not get into the interior passages correctly.

Failure to follow the recommended procedures on this site will equate to your bike running like crap.

1
13201-47110 1$107.86 2
13202-47110 1$114.55 3
13203-47110 1$107.86 4
13204-47110 1$107.86 5SCREW
02112-0416A (replaces 02112-04168) 16$0.90 6WASHER,LOCK
08321-0104A (replaces 08321-21048) 16$1.32 7..FLOAT
13252-43010 4$35.69 8.PIN
13254-01010 4$2.73 9..GASKET
13251-43010 (replaces 13251-47010) 4$6.68 10.O RING
13246-43010 4$3.25 11..SCREW
13247-45010 4$6.68 12.VALVE, NEEDLE
13370-18111 (replaces 13370-45010) 4$38.51 13..GASKET
13392-58600 4$1.37 14
09494-00200 4$9.12 15..PIPE, BREADER
13385-47030 4$23.88 16.O RING
13246-43010 4$3.25 17JET, MAIN
09491-80008 4$7.95 18..JET, PILOT NO. 1
09492-15007 4$7.15 19..JET, PILOT NO. 2
09493-50003 4$10.30 20
13383-47030 4$6.50 21.CLIP, NEEDLE
13394-10010 4$3.39 22..SPRING
13388-47010 4$5.08 23..PLATE
13382-47010 4$2.68 24
13398-47120 4Call For Price 25SCREW
02112-0316B (replaces 02111-03148) 8$1.56 26WASHER,LOCK
09162-03001 (replaces 08321-21038) 8$0.76 27
13543-45010 4$1.71 28
13544-43010 4$2.22 29
13548-45010 4$9.26 30.NUT
08310-00057 (replaces 08310-11058) 4$1.31 31WASHER,LOCK
08321-0105A (replaces 08321-21058) 4$1.32 32.WASHER
08322-01057 (replaces 08322-21058) 4$1.32 33BOLT
01500-0516B (replaces 01112-05168) 5$1.23 34WASHER,LOCK
08321-0105A (replaces 08321-21058) 5$1.32 35
13551-47010 4$27.32 36..GASKET
13266-43010 4$5.13 37SCREW
02112-0416A (replaces 02112-04168) 12$0.90 38WASHER,LOCK
08321-0104A (replaces 08321-21048) 12$1.32 39
13678-43010 12$3.04 40.SEAL
13556-45010 2$9.97 41
13685-47030 2$16.16 42O-RING
13374-73000 (replaces 13679-43010) 12$3.40 43
13685-47040 1$17.26 45HOSE (P/R TO V/S)
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09355-45855-600 (replaces 13683-45050) 1$9.41 48SCREW
02122-06127 (replaces 02122-06128) 8$1.32 49
13210-47020 1$272.60 50
13410-47010 1$26.84 51WASHER
13615-45010 1$2.03 52..WASHER
13432-33110 1$2.73 53WASHER
13615-45010 1$2.03 54..SPRING
13426-43010 1$4.09 55
13433-33110 1$2.09 56SCREW
02112-05167 (replaces 02111-05158) 1$1.42 57WASHER,LOCK
08321-0105A (replaces 08321-21058) 1$1.32 58
13557-33110 1$2.68 59
13573-47010 1$10.01 60
13267-47030 1$11.53 61
13268-33110 1$2.98 62
13550-47010 1Call For Price 63
13422-45030 4$6.47 64..SCREW
13605-31210

[Sexysuzi]

Thanks for the advice. Sounds like I didn't do a good job. I will pull apart. What o rings do I need to order ? I have replaced the o rings on the needles, what numbers on the diagrams do I need purchase ???

I think I just need the o rings for fuel connectors between carbs ??

[hampshirehog]

Get your seals from Robert Barr - he's a member here and his service is second to none:

http://www.cycleorings.com/VMkit.html

You'll need to dip your carbs. Tutorial on how to rebuild your carbs here if you haven't already found it:

http://www.thegsresources.com/garage...rb_rebuild.pdf