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post #1 of 21 (permalink) Old 04-24-2011, 04:47 AM Thread Starter
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HELLO EVERYONE, NEW TO SITE AND OWNING A GOLDWING! JUST BOUGHT MY FIRST A COUPLE OF WEEKS AGO AND NEED HELP AND EXPLINATION.

FIRST OF I'M NOT NEW TO RIDING, HAVE BEEN FOR 20 YRS BUT ALL HAVE BEEN HARLEYS.

ANYWAY JUST BOUGHT A 86 GL1200A, 60,000 MILES. SEEMS TO BE A VERY GOOD BIKE! IT IS VERY COMFORTABLE. HAVE SOME QUESTIONS THOUGH.



1. WHAT SHOULD MY GAS MILAGE BE? SEEM TO BE GETTING 28-33 MPG.



ALSO WITH THAT @ WHAT RPM SHOULD SHIFTS BE?



2. SEEMS TO RUN WELL BUT IDLE RPM'S AFTER WARM UP ARE AROUND 1320-1360. IS THIS TOO HIGH? COULD THAT BE EFFECTING MY MPG?



3. WHEN RIDING 4TH GEAR IF IM NOT "ON" THE THROTTLE SEEMS TO "GROWL" SOME. SAME WITH 5TH DOING ABOUT 56-60 MPH. DOES IT SOUND LIKE I'M "DOGGING" IT OR IS THERE A PROBLEM?





i'M ABOUT TO CHANGE THE OIL( SYNTHETIC), ANF FINAL DRIVE. THE PREVIOUS OWNER HAD THE STATOR REPLACED LAST YEAR, AND MECHANIC CLAIMED NOTHING ELSE WAS NEEDED. AGIAN IT RUNS FAIRLY WELL BUT IT SEEMS TO LACK POWER IN 4TH AND 5TH GEAR. AND SEEMS TO ME IS USING TOO MUCH FUEL.



WOULD APPRECIATE ANY HELP AND AM LOOKING FORWARD TO BEING ACTIVE IN THE FORUM.
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post #2 of 21 (permalink) Old 04-24-2011, 05:34 AM
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Welcome

The carbs need some attention, a sync would help.
The Goldwings like higher rpms, keeping it around 3K will help with the mileage.

The 1200 gurus will be along with more help.

Happy Trails


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post #3 of 21 (permalink) Old 04-24-2011, 06:18 AM
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Hello and welcome to the forum and the greatest group around Goldwing Owners !!

Mileage on mine high 30's low 40's.Rpm- 1200 like higher rpms, riding and shifting. Idle- should idle smoothly between 800-1000 rpm.

Sounds like carbs. need some attention, i would pull them and give them a good cleaning, then resync. them . Also remove the stator conection next to the battery and solder them together ( it's a week link that leads to stator failure ).

Again Welcome !!!!! Jim

Body and Bike in southern Georgia,heart and head back in the Del/Mar/Va.
Jim

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post #4 of 21 (permalink) Old 04-24-2011, 06:54 AM
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If you got some sort of growl in 5th gear at 56-60 mph somethings not right, at that speed should be smooth as glass. The 1200`s are know for having a heavy growl or vibration in 3-4 gear at very low rpm`s and heavy throttle thats normal, as soon as the rpm`s come up alittle the vibration quits. Sounds like you might want to check into your final drive assembly.??

Roy

1974 Honda 500 four
1978 GS750E
1965 Triumph 500 tiger compitition
1984 Aspencade Gl1200


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post #5 of 21 (permalink) Old 04-24-2011, 07:43 AM
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Welcome to the forum. Synch the carbs first, that usually cures many issues.

Alan Fitzpatrick.
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post #6 of 21 (permalink) Old 04-24-2011, 08:37 AM Thread Starter
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Thanks guys! What do you mean sync carbs?
Also the growl smoothes out with higher rpm
Have run sea fom through tank! Enough to clean carbs?
Bob
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post #7 of 21 (permalink) Old 04-24-2011, 09:12 AM
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Growl, shifting too soon, keep RPM's up on the 1200...

Sync, check out http://www.carbtune.com/


I consistently get 40-41mpg driving a commute that is highway/Local mix.
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post #8 of 21 (permalink) Old 04-24-2011, 09:27 AM Thread Starter
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Ok thanks for the link.but will probably have a shop do that!
Doyou think sea foam is enough to clean carbs! Truly there was approx 1/4 tank of gas in it when I got it, and not sure how long it was in there
Bob
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post #9 of 21 (permalink) Old 04-24-2011, 09:51 AM
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Well I suppose you ran through that 1/4 tank. use Seafoam as a preventive for now in the gas tank.

Cylinder balancing or synchronization will assist in lower speeds and idles, but they should be done, whether by you or a shop. It is an easy job but you will need either vacuum gauges, 2 to 4 or other carb stix. When done properly the end result is a smooth running 4 cylinder.

Idle is recommended at 750 +- 100, I like 1000 +- 100, for the charging system to work at the lower speeds.

The 1200 is a lot more torque producing than the 1100 but gear shifting is similar: They both like higher revs and in fact if you shift at too low a RPM, both will complain as evidenced by a growl or a chain vibration in the front of the engine. To stop this the balance will help plus the shift pattern at 2500-3000 range. Both bikes should easily reach their red line in at least the 1st 3 gears.

The carbs will need attention, both in the low end and in the upper range, but get some experiences with the bike so you have an idea how it is running. Both 1100 and 1200 get great mileage but that varies as to how you drive and tires, brakes, and if you lug the motor and these 4 bangers do not like lugging.

You should get by with 87 gasoline, if you get ping check the heat range of your plugs before going to a high test fuel, you will have to experiment. The use of ethanol at 10% may not be a bother, drive it and see.

As for the rear end an 80/90 hypoid is OK but anything thicker is bad when the temperature is cold.

Set your spark plug gaps at the minimum specified to alleviate and type of higher speed miss.

Have fun with it and enjoy!







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post #10 of 21 (permalink) Old 04-24-2011, 12:22 PM Thread Starter
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Thank you very much! Trying to read up on the whole sync thing! And will look up about pulling the carbs!
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