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Quick question for y'all. my bike runs beautiful other than it seems to rev really high (3 to 4000 rpms) some times when I'm reving it up. It doesn't want to idle down very well. I looked at the idle adjustment screw while it was doing this and the throttle linkage was bottom out on it so I know the cables not sticking. It seems to do this worse if I have the enricher on or open half way. When it's closed it responds much better. The other day when I rode it home from buying it I stopped for gas. After I filled it up I started the bike up and the rpms climbed very high. I immediately shut it down for fear of damaging the engine. when I tried to start it back up it was hard to start and the it backfired. I guess when it shut it down at such high rpms it left some unburned gas in the exhaust. It was very cold outside by the way. Anyway I started it thisafternon and it ran good but still din't want to idle down. I know that they will run a little higher on the rpms with the enricher open but this seems way to high. any thoughts would be apreciated.
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Rev.Rick
What I ride now: 1980 XS1100 Special
What I used to Ride: 1980 XS850, 1984 Honda V65 Sabre, 1974 Honda CB750 ss, Yamaha YZ 480 (bored YZ400), Kawasaki 500 triple
Amazing Grace, how sweet the sound that saved a wretch like me! John Newton (1725-1807) -
Well it sounds to me like it could have a vacuum leak.You can spray carb cleaner or WD40 or starting fluid around the intake boots and the throttle shafts and see if it changes rpm.
Also if the carbs aren't in sync the rpm's will climb.80 SG XS1100
14 Victory Cross Country -
Sych, tune and synch. If the carbs are to out of synch or tune, the idle will climb or not come back down like that.Life is what happens while your planning everything else!
When your work speaks for itself, don't interrupt.
81 XS1100 Special - Humpty Dumpty
80 XS1100 Special - Project Resurrection
Previously owned
93 GSX600F
80 XS1100 Special - Ruby
81 XS1100 Special
81 CB750 C
80 CB750 C
78 XS750Comment
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I would agree on the carb sync. The leak might be an issue, but frankly most likely is going to be sync and idle mixture.Cy
1980 XS1100G (Brutus) w/81H Engine
Duplicolor Mirage Paint Job (Purple/Green)
Vetter Windjammer IV
Vetter hard bags & Trunk
OEM Luggage Rack
Jardine Spaghetti 4-2 exhaust system
Spade Fuse Box
Turn Signal Auto Cancel Mod
750 FD Mod
TC Spin on Oil Filter Adapter (temp removed)
XJ1100 Front Footpegs
XJ1100 Shocks
I was always taught to respect my elders, but it keeps getting harder to find one.Comment
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Check the carb boot rubber caps for cracks too.2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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I agree on checking for a vacuum leak and syncing them. Also check for torn diaphragms.
GeezerHi my name is Tony and I'm a bikeoholic.
The old gray biker ain't what he used to be.Comment
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I agree with DGXSER (you know that's hard to read in print
)Sych, tune and synch.
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I figured check for a vacuum leak first since he said it is hard to start and backfires after it is warm.80 SG XS1100
14 Victory Cross CountryComment
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It needs an exorcism.
TodTry your hardest to be the kind of person your dog thinks you are.
You can live to be 100, as long as you give up everything that would make you want to live to be 100!
Current bikes:
'06 Suzuki DR650
*'82 XJ1100 with the 1179 kit. "Mad Maxim"
'82 XJ1100 Completely stock fixer-upper
'82 XJ1100 Bagger fixer-upper
'82 XJ1100 Motor/frame and lots of boxes of parts
'82 XJ1100 Parts bike
'81 XS1100 Special
'81 YZ250
'80 XS850 Special
'80 XR100
*Crashed/Totalled, still ownComment
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Well that old devil has landed in the wrong XSives scoot. Hasn't he?It needs an exorcism
Sic 'em rev!!!
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also check your throttle cable has enuff play
in it, if its tight itll hold the revs up.pete
new owner of
08 gen2 hayabusa
former owner
1981 xs1100 RH (aus) (5N5)
zrx carbs
18mm float height
145 main jets
38 pilots
slide needle shimmed .5mm washer
fitted with v/stax and uni pod filters
[url]http://www.youtube.com/watch?v=3pA8dwxmAVA&feature=mfu_in_order&list=UL[/url]Comment
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