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Old 08-22-2017, 05:32 PM
ThrottleJunky ThrottleJunky is offline
Truly XSive
Join Date: Jan 2011
Location: PNW
Posts: 183
Suprisingly fast acceleration in the higher rpm's!

Wow. After finally getting all of the wrinkles ironed out, knock on wood, this old gal is running beautifully.

I received my Colortune last night, and between that and the Carbtune have her purring like a kitten. The motor, with 20,000 original miles, is as quiet as can be. I think she may still be a tad bit lean in the mixture screws, but she's really, really close. Just a hint of burble on deceleration, no popping or anything.

I just took her for another spin, and opened her up a little more than I ever have. I must say that from around 6k to 8k, the power and acceleration are absolutely radical. I didn't redline her, but I did get close. I'm not one to really beat up on my stuff, but she pulls so hard up high it's phenomenal. The action coming from the shaft drive and the seat are something else!

I want to get her out on some lonely road somewhere without big trees, deer, and all the other associated things around here so I can really stretch her legs.

She leaves me wondering only one thing: Does anybody really need any more power than this?

PS- This 80 mph speedometer is a joke. I have no idea what Yamaha was smoking.
1980 XS1100G. Work in progress.
1980 XS1100G. 2nd work in progress.
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Old 08-22-2017, 05:56 PM
IanDMacDonald's Avatar
IanDMacDonald IanDMacDonald is offline
XS-XJ Super Guru
Join Date: Oct 2010
Location: Grand Blanc & Fenton, MI
Posts: 3,807
Originally Posted by ThrottleJunky View Post
PS- This 80 mph speedometer is a joke. I have no idea what Yamaha was smoking.
It wasn't Yamaha. It was the US, part of their energy conservation during the oil embargo, an offshoot of the NMSL by the NHTSA.
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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Old 08-22-2017, 06:30 PM
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jetmechmarty jetmechmarty is offline
Master of XSology
Join Date: Nov 2003
Location: Coldwater, Mississippi
Posts: 7,254
If you're going to flog that thing, I recommend you do something about the suspension. The shocks were nothing special when new, and now they're very old. Did you change the fork oil? You really shouldn't feel a lot of jacking in the seat.
Marty (in Mississippi)
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Old 08-22-2017, 09:06 PM
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skids skids is offline
XS-XJ Super Guru
Join Date: Jul 2002
Location: Florissant, CO, USA
Posts: 4,958
Watch out for the 100mph cha-cha!
Skids (Sid Hansen)

Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.
03 Honda ST1300 ABS
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