Accelerating difference gl1100 and gl1200


Technical information and Q&A applicable to all years and models of Goldwings
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virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Accelerating difference gl1100 and gl1200

Postby virgilmobile » Mon Jun 13, 2011 12:09 pm



My gl1100 is freshly rebuilt and runs great,AND my gl1200 is finally road worthy.
Here's what I noticed.
gl1100 likes to roll the throttle and pull steady.Snap the throttle wide open and it still pulls slow and steady.1500 through 5000 rpm
gl1200 ,roll the throttle and it reacts just like the 1100 BUT,snap the throttle wide open and it surprised me on how fast it climbed in rpm.

I haven't measured it ,but it seems to get through 2 gears a lot quicker than the 1100.
The "G"force seems to occur much quicker.
Yes,carbs cleaned and synced on both by me.The only thing I haven't verified yet is timing and vacuum advance.



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dingdong
Posts: 2865
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: Accelerating difference gl1100 and gl1200

Postby dingdong » Mon Jun 13, 2011 1:52 pm

I'm told that the 1200 has quicker roll on times than the 1100 but the 1100 I used to own and bought new was no slouch in the acceleration department except in 5th gear. You do know that 5th gear on the 83 is geared higher than the other 1100s? It is considered an overdrive for fuel economy back when the speed limit was 55mph.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Accelerating difference gl1100 and gl1200

Postby virgilmobile » Mon Jun 13, 2011 3:15 pm

I think I'll time it .1 gear,stop to 6000rpm.the 1100 has 350 miles on a full rebuild,the 1200 has 110k miles.

User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Accelerating difference gl1100 and gl1200

Postby virgilmobile » Tue Jun 21, 2011 8:03 am

The 1100 is much slower (0-grin) than the 1200. The results.

Finally got to do a vacuum test on the 1100.The vacuum advance is my first suspect causing poor throttle response from 1500-3500 rpm.
I pulled the hose and watched the gauge.
At 1000 rpm 0" vacuum
1500 rpm a bit of flutter around 1"
2000 rpm settled at 2.5"
3000 rpm holds near 4"
All and all I think the source is OK ...Then I pulled a vacuum on the canister.Nope,It leaks BAD.Well here's your sign.I've got a spare I'll check and replace.




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