Need diagnostic advice


Information and questions on GL1100 Goldwings (1980-1983)
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donmcferran
Posts: 24
Joined: Sat Nov 17, 2018 9:06 pm
Location: Bend, OR USA
Motorcycle: 82 HondaGoldwing Aspencade

Need diagnostic advice

Post by donmcferran » Sat May 25, 2019 2:03 pm



'82 aspencade. Sat for several years. I have changed timing belts, valve adjust, carb Sync, new plugs, Dodge Neon coil, new plug wires. an I've run a lot of seafoam through the fuel.
It lugs at low rpm. When starting off from a stop it lugs until I get the rpms up, Unless I very slowly accelerate, then it is smooth. Going down the road, it is smooth 3500 RPM and above. Below that it lugs.

I have not rebuilt or cleaned the carbs, and I fear that may be the problem. I have no experience working on carbs.
Any other ideas? Thanks in advance.



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donmcferran
Posts: 24
Joined: Sat Nov 17, 2018 9:06 pm
Location: Bend, OR USA
Motorcycle: 82 HondaGoldwing Aspencade

Re: Need diagnostic advice

Post by donmcferran » Sat May 25, 2019 2:26 pm

I'm adding pictures of the plugs.
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winguyjo
Posts: 173
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete.
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81 gl1100i frame / 82 gl1100a engine/ 81cb900 odds & ends; resurrection complete. it's naked.

Re: Need diagnostic advice

Post by winguyjo » Sat May 25, 2019 5:09 pm

any carb(s) that have been sitting for several years with gas in them are going to need complete service ... removal, disassembly, cleaning, certain rubber bits replaced (although i have had some success re-using the old parts i can't recommend it).

there are guys here that do it professionally, although their name(s) escape me at the moment. it's going to cost you some coin, but it's a good investment.

there are also brave souls who, like you, have no carb experience but went ahead and tackled the job anyway. again, i can't recommend it ... lots of ways to go wrong ... but if you want to give it a go there are definitely lots of forum members who will guide you, however, i would, at the very minimum, get ahold of a lawnmower or other small engine carb and take it apart/clean/put it back together before tackling a set of 4 goldwing carbs.

good luck, whichever way you go you should have a truly awesome machine in the end.

Robbie1968
Posts: 12
Joined: Thu Sep 20, 2012 5:35 pm
Location: Saintfield,northern Ireland
Motorcycle: 1982 gl1100a Asplenade

Re: Need diagnostic advice

Post by Robbie1968 » Sat May 25, 2019 6:35 pm

Hi, I had something similar with my 81 interstate, very reluctant to idle and not firing on all cylinders at times.. Decided to buy the rebuild kit from Randakks along with the rebuild guide. People swear they are the best.
I had never even opened a carb before, but it was well documented and easy to follow. You just need to be very organised and methodical in your approach. Biggest pain is getting everything clean including all the tiny passageways.

Bike is now running great after a carb sync.

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dingdong
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Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune SOLD

Re: Need diagnostic advice

Post by dingdong » Sat May 25, 2019 7:07 pm

Just judging by the pics the #2 carb is running rich. In order to find and fix that one carb you will need to pull the carbs so you may as well plan on a rebuild. That carb could have a float valve that isn't sealing or a float hanging up or out of adjustment. Question: Were the pics taken after extended idle time or after a long ride?
Tom

"Molon Labe"

John F. Kennedy would be impeached by todays liberal Democratic socialist party.

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donmcferran
Posts: 24
Joined: Sat Nov 17, 2018 9:06 pm
Location: Bend, OR USA
Motorcycle: 82 HondaGoldwing Aspencade

Re: Need diagnostic advice

Post by donmcferran » Sat May 25, 2019 9:03 pm

The pics were taken after riding for about 2 hours.

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dakotanator
Posts: 136
Joined: Sun Jul 20, 2014 10:07 am
Location: Columbia Falls, Montana
Motorcycle: 1973 Suzuki TS185 (sold)
1981 Suzuki GS750L (sold)
1992 Suzuki 1100 Katana (sold)
1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: Need diagnostic advice

Post by dakotanator » Sun May 26, 2019 8:27 am

I can offer this advice.....if you need the carbs rebuilt, and you don't want to do it yourself.......send the carbs to Pistol Pete in Tennessee. YES.....it will cost in the neighborhood of $500+shipping, but when you get those carbs back, you will put them on, hook them up, and the bike will start. It will run like new.

I rebuilt my '83 Aspencade last year, and after fiddling w/ the carbs.......I said to HECK WITH IT, and sent them to a PRO. It's the best $500 I have spent on this bike yet. She runs like a dream. Only 47k on her, and starts and runs like new.

When you "winterize" the bike, follow WingAdmin's instructions and the next season, she should start right up. Just my experience so far. WORTH THE $$$.
It's not WHAT you ride......it's THAT you ride.

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donmcferran
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Joined: Sat Nov 17, 2018 9:06 pm
Location: Bend, OR USA
Motorcycle: 82 HondaGoldwing Aspencade

Re: Need diagnostic advice

Post by donmcferran » Sun May 26, 2019 11:31 am

Thanks, guys. I am going to contact Pistol Pete next week. Your advice is good, and I am listening.

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donmcferran
Posts: 24
Joined: Sat Nov 17, 2018 9:06 pm
Location: Bend, OR USA
Motorcycle: 82 HondaGoldwing Aspencade

Re: Need diagnostic advice

Post by donmcferran » Sun Jun 30, 2019 11:54 am

An update to the original question. I followed the great advice I received from this forum, and sent my carbs to Pistol Pete. The carbs came back on schedule, and the problem is solved, the bike runs well. There were some gremlins related to the installation, and the stubborn personality of a 36 year old bike, but Pete and Mark were very helpful in phone conversations. Great customer service!

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dakotanator
Posts: 136
Joined: Sun Jul 20, 2014 10:07 am
Location: Columbia Falls, Montana
Motorcycle: 1973 Suzuki TS185 (sold)
1981 Suzuki GS750L (sold)
1992 Suzuki 1100 Katana (sold)
1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: Need diagnostic advice

Post by dakotanator » Thu Jul 11, 2019 5:31 pm

Thanks for the update. GOOD JOB..!!


It's not WHAT you ride......it's THAT you ride.

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