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  #226  
Old 09-05-2015, 09:40 PM
motoman motoman is offline
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Quote:
Originally Posted by madmax-im View Post
what does JIS mean???
J-apenese I-ndustrial Steel
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81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.
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  #227  
Old 09-06-2015, 08:14 AM
CaptonZap CaptonZap is offline
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Originally Posted by 79XS11F View Post
Yeah I know they are different. I will ether have to go out and buy a JIS driver or find my best fit Philips and grind the tip down a bit. They are always shallower then true Philips and I really don't want to damage them.
For those who don't know, when you see a Philips screw and there is a single dot or sometimes an X on the head of the screw, it indicates that the screw is JIS which I think stands for Japanese Industry Standard. It's slightly different then a Philips.
Rob
The $1.99 on sale 4 in 1 blue handled screwdrivers at Habba Fleight are just what you need for those screws.

http://www.harborfreight.com/4-in-1-...dle-69470.html

CZ
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  #228  
Old 09-06-2015, 03:39 PM
mack mack is offline
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cheaper option

take a small drill bit and just deepen the hole a tad in center of the philips X
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79 XS 1100 SF Special
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  #229  
Old 09-06-2015, 03:52 PM
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natemoen natemoen is offline
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Quote:
Originally Posted by motoman View Post
J-apenese I-ndustrial Steel
Make that Japanese Industrial Standard
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1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
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Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
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  #230  
Old 09-07-2015, 01:43 PM
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79XS11F 79XS11F is offline
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Quote:
Originally Posted by TopCatGr58 View Post
Hey Rob,

It's not just that they are JIS, but also...I'm sure you know this, moreso stating for other newbies that may read this thread....the ends of the screws are PEENED to keep them from working loose and getting sucked into the engine. SO.....you'll need to use your dremmel to remove the peened portion of the screws before trying to loosent them....should allow you to loosen them easier and even with STANDARD philips driver. You'll just want to use some RED locktite when you put them back in.....or get some new ones so you can PEEN them again!?

T.C.
I knew they are peened but I was under the impression that they could be loosened just not removed without cutting the heads ends off.
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1981 Suzuki GS1100
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  #231  
Old 09-07-2015, 06:18 PM
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79XS11F 79XS11F is offline
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The issue has been found, corrected and the bike is idling pretty good with the carb sync done. There's still an occasion back fire as compared to a miss and I will look into that when the season is done.
So the "ghost in the machine" was this space between the end of the shaft and the washer on the spring side of the carb. The space is just wide enough for the spring to slip into and jam it up enough to prevent full closing of the butterfly valve.
To fix it I loosened off the Butterfly screws, remove the fold over washer and nut from the opposite side of the shaft, slid the shaft over that much and used a washer to make up the space on the other side. It's not a "perfect" washer so that bolt is now firm hand tight and held in place by the fold over washer.



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1980 XS1100 SG
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  #232  
Old 09-07-2015, 06:54 PM
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IanDMacDonald IanDMacDonald is offline
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I just learned at the shop a few weeks ago about machined washers for a designed spec., so now I know what you mean by a "perfect" washer.
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1979 XS1100F
2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.
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  #233  
Old 09-08-2015, 08:03 PM
s63921c s63921c is offline
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Talking congrats

Congratulations on finding the solution! I've been wondering what became of your issue...and great job in persevering to track it down and not give up! And thank you to all you guys that know and share so much of your knowledge and experience with these bikes-I would have sold mine long ago if it weren't for you all being so helpful. This forum is exceptional in my book. Thanks for sharing what you found!
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  #234  
Old 09-09-2015, 05:55 PM
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79XS11F 79XS11F is offline
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Just in from a quick around the neighborhood test run that includes speeds up to 120 KM/HR and she is running pretty good. Still the occasional miss but she is for sure running rich. I can hear her babbling in the mufflers when coming off throttle. Idle managed to get up to 1500 once she was fully warmed up so I had to dial that back to 1100 and the RPMs seem to float a little when the throttle is released.
Rob
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1978 XS1100E Modified
1978 XS500E
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1980 XS1100 SG
1981 Suzuki GS1100
1983 Suzuki GS750S Katana
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  #235  
Old 09-09-2015, 06:08 PM
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Blank Slate Blank Slate is offline
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Congrats Rob! After I pass my safety course in two weeks I'll insure my bike and drive down the road see you
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  #236  
Old 09-09-2015, 06:18 PM
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madmax-im madmax-im is offline
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That is awesome news Rob...glad you stuck with it...I always thought this was a carb issue...
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  #237  
Old 09-12-2015, 08:23 AM
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79XS11F 79XS11F is offline
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I went for a run around the outskirts of the city yesterday evening after dark and the bike runs pretty good but still needs some work as she is running rather rich. She sounds like a bike with a jetting problem that would occur after putting a header on it. When I down shift or back off the throttle I can hear unburned fuel igniting in the mufflers so the timing must be off just a tad or the occasional miss is putting fuel into the exhaust system.
I also noticed that the neutral light is dimly illuminated without blinking. and I don't recall that from the past.
If the neutral light is dimly illuminated there must be an electrical leak somewhere in the system so I will have to track that down. Any ideas as to where that might occur? Maybe that is related to the miss I am still experiencing. I know that the neutral light lead does come out of the timing cover so perhaps this is a clue to the missing issue.
Rob
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1978 XS1100E Modified
1978 XS500E
1979 XS1100F Restored
1980 XS1100 SG
1981 Suzuki GS1100
1983 Suzuki GS750S Katana
1983 Honda CB900 Custom
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  #238  
Old 09-12-2015, 09:15 AM
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dbeardslee dbeardslee is offline
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What do your plugs look like after the carb butterfly fix and running it around a bit?
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I think I have a loose screw behind the handlebars.

'79 XS11 Standard, Jardine 4/1, Dyna DC1-1 Coils, 145 mains, 45 pilots, plastic floats - 25.7mm, XV920 fuel valves, inline fuel filters, speed bleeders, Mikes XS pods, spade-type fuse block, fork brace, progressive fork springs/shocks, manual petcocks, 750 FD, Venture cam chain tensioner, SS brake lines
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  #239  
Old 09-12-2015, 09:25 AM
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79XS11F 79XS11F is offline
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Quote:
Originally Posted by dbeardslee View Post
What do your plugs look like after the carb butterfly fix and running it around a bit?
They are inconsistent at best with #2 looking the richest. I'm going to grab new plugs today and put the color tune plugs in her to see what's up
Rob
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KEEP THE RUBBER SIDE DOWN

1978 XS1100E Modified
1978 XS500E
1979 XS1100F Restored
1980 XS1100 SG
1981 Suzuki GS1100
1983 Suzuki GS750S Katana
1983 Honda CB900 Custom
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  #240  
Old 09-12-2015, 09:27 AM
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79XS11F 79XS11F is offline
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I may fully disassemble the carbs and ultra sonic clean them with lacquer thinner but I need to research that first to make sure I am not making a bomb in my garage. I could of course run the machine in the yard. I do know that some people do use flammable cleaners in these units.
Rob
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KEEP THE RUBBER SIDE DOWN

1978 XS1100E Modified
1978 XS500E
1979 XS1100F Restored
1980 XS1100 SG
1981 Suzuki GS1100
1983 Suzuki GS750S Katana
1983 Honda CB900 Custom
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