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Discussion Starter · #1 ·
Can someone please tell me where the needle should be resting on the GL1500 tachometer when the idle speed is set at 850 RPM. If someone has a picture of it I would appreciate that. I know this may sound like a stupid question, but I would just like to get different opinions.
 

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What is yours doing would be good to include in your asking that.

850 +/- 50 rpms is the stated setting in the manual.
 

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I did. Your input would be better.
 

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Discussion Starter · #5 ·
There is nothing wrong with the idle. I just would like to know where 850 RPM's is located on the tachometer. There are 4-index lines on the tack from 0-1000, so do you consider 333 RPM's between each index line.
 

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That is a little clearer. I have mine @ 1/3-1/2 way between the last line and 1000.
1000/4=250
 

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Discussion Starter · #7 ·
That is what I figured, but I wanted to make sure. If you look on the carb sync video on here, they set it at 666RPM's.

Thanks,
 

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Discussion Starter · #9 ·
Please go out and look at your Tachometer if you have a GL1500. Everyone is reading the tach wrong.

0 is line 1
??? is line 2
??? is line 3
1000 is line 4

From line 1 to 2 has to be 333.3
From line 2 to 3 has to be 666.6
From line 3 to 4 is 1000

The Carb balance tutorial has the idle set at line 3 which would be 666.6 and below the 850 Honda recommends.
 

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I set my idle at 1050 or about the first line above 1,000.

Why? so the alternator does a better job of keeping the battery charged on hot days with the fans on while waiting for those 5-7 minute red lights to turn green.

Too many folks are just way too antsy about what the idle "should be".
There is no hard and fast rule.

I have always kept my 1500s idle speeds around 1000-1100 rpm.
That also helps in preventing you from stalling the engine on take off.
 

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^ Except you get a lot more 'clunk' when shifting in to gear. I have never heard of a Wing having an issue with stoplight idling?
Crap- I don't want to hijak this. Done.

As for the tach reading, as said above. I just keep mine between the 1000 and the line below it, give or take. If no stall at idle it's fine. As for stalling at takeoff, a touch more throttle solves that.
 

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Please go out and look at your Tachometer if you have a GL1500. Everyone is reading the tach wrong.

0 is line 1
??? is line 2
??? is line 3
1000 is line 4

From line 1 to 2 has to be 333.3
From line 2 to 3 has to be 666.6
From line 3 to 4 is 1000

The Carb balance tutorial has the idle set at line 3 which would be 666.6 and below the 850 Honda recommends.
How strange, I don't think I ever noticed that before. Like the others here I have always assumed that the line before the thousand rpm is 750 rpm. But you are correct (and observant :claps:) to point out that there are only three subdivisions within the first thousand rpms, which makes little sense for Honda to have done.

The clue may be that where there are four subdivisions in the subsequent sets, the half-way line is bigger than the other two. On the first thousand, the first line (i.e. what you are referring to as 333,3 or one third) is bigger too, which suggests Honda simply skipped marking the one quarter line and this is actually the one half marker.
 

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Discussion Starter · #14 ·
Nico:

Your theory does make sense. The only reason I started this thread was because I did a carb sync for the first time and was really confused where the 800 RPM mark was. The only thing I learned is that my idle adjustment is not set right.
 

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As for carb synch, the good news is if your idle speed is anywhere close you can still synch them accurately. If an adjustment of the synch screw changes your idle enough, adjust it and recheck then.
Enjoy!
 

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I did check the tach.
0 to 1 = 250 rpm
1 to 2 = 500 rpm
2 to 3 = 750 rpm
3 to 4 = 1000 rpm
tachometers read x 1000 not in thirds.
 

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Discussion Starter · #17 ·
Please go out and look at your Tachometer if you have a 1995 GL1500.

0 is line 1
??? is line 2
??? is line 3
1000 is line 4

From line 1 to 2 has to be 500
From line 2 to 3 has to be 750
From line 3 to 4 is 1000

There are only 3-division points from 0-1000 on my 1995 GL1500

Honda must figure that 250 isn't needed because why would it be needed.
 

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Please go out and look at your Tachometer if you have a 1995 GL1500.

0 is line 1
??? is line 2
??? is line 3
1000 is line 4

From line 1 to 2 has to be 500
From line 2 to 3 has to be 750
From line 3 to 4 is 1000

There are only 3-division points from 0-1000 on my 1995 GL1500

Honda must figure that 250 isn't needed because why would it be needed.
Me too: 1995... I guess they changed the display later on then. Even if the 250 mark would never be used, having three and then four subdivisions was nonsense really.
 

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Somewhere around the first line under the 1000 mark has always been fine for me. If the idle is set too high shift is poor because RPM's don't drop off as cleanly when the throttle is chopped. Also if idle is too high tends to make the RPM's surge at idle.
 

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Can someone please tell me where the needle should be resting on the GL1500 tachometer when the idle speed is set at 850 RPM. If someone has a picture of it I would appreciate that. I know this may sound like a stupid question, but I would just like to get different opinions.

Here's a picture of mine (UK version but I think the same) just to show the dividing lines. Sorry the bike is not running at the minute to show where it ticks over. Too cold to get it out!
 

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