Question about Honda GB 500 Clubmann TT Motorcycles

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Honda GB 500 Clubmann TT overheating

Honda GB 500 which runs very hot, especially in the clutch housing area.No slip.very hot after 1 hour other GB 400 does not do this.The GB 500 has a Mikuni flat side on it and runs well.Any ideas re the heat problem.@

Posted by Anonymous on


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Hi, Anonymous and the usual suspects are:
1. Engine oil level and SAE weight are too low or not circulating.
2. Insufficient or blocked airflow over the engine.
3. Heavy combustion chamber carbon deposits.
4. Ignition timing retarded due to a faulty MAP, CKP, or CMP sensor.
5. Carburetor jetted too lean.
6. Leaking intake or exhaust valve.
7. Water coolant old or low change every two years.
8. Water pump failure.
9. Radiator clogged, cap loose or malfunctioning.
10. Radiator fans not coming on.
11. Clutch slipping, brakes dragging, heavy load, towing a trailer etc.
12. Idling too long without moving.
13. For constant hot weather temperatures, mountain, or desert riding conditions consider adding an oil cooler and or cylinder head cooler.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
CB500 Overheating
Honda GB500 Twin Service Repair Manual
Honda CB Owners Manuals

Posted on Nov 01, 2017


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Posted on Jan 02, 2017

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SOURCE: Clutch

Either the springs are weak and should have been replaced with the clutch or the linkage is too tight and the clutch is slipping all the time.

Posted on Nov 20, 2008

  • 8 Answers

SOURCE: Clutch slipping while cold, when warm/hot, it operates great.

I have a 2000 Vulcan Nomad FI & had a very similar problem. In fact, it's a very common problem with these bikes. I fixed it by replacing the Clutch Spring. (As Described here:

It cost me $40 and 3 hours of time with an impact wrench.

Posted on Jan 26, 2009

  • 3567 Answers

SOURCE: 84 honda shadow vt700 clutch slips when hot

Your clutch plates have lasted 25 years. It is probably time to get some new plates. Have your dealer get you a set of Barnett clutch plates.

Posted on Apr 22, 2009

  • 8404 Answers

SOURCE: clutch slipping

You did adjust ir, right?

Once up on a time, there was an external adjustment on Honda. It was a 10 mm or so nut locking a flat blade screw head. Loosen the nut, snug the screw and then back off 1/4 turn.

Join the Honda Riders Club for a small fee and you can get access to all service manuals according to the web site.

Good luck on your adjustment.

Posted on Oct 19, 2009

SOURCE: my honda 400 bros is not runing right 1 plug is

Sooted plugs proves tht the air-mixture is too rich.(too much fuel going to the combustion chamber)
You have to set the air-mixture screw on the carb/s.
Clean the carb/s, replace 'inline' filter , if you don't have one ..install one, reset float level.
It's better to also check the valve clearance too.
Fit in new plugs (gapping them to specs.) and run the engine to its normal temperature thn set the air-mixture screw...standard setting....all the way in i.e. tighten it slowly to the end making sure not to damage the tip of the screw, thn 2 and half turns outwards to 3.
Start the to normal temperature and thn reset the air-mixture screw +/- either way.
Hope this helps!

Posted on Oct 24, 2009

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WHERE can I purchase driver for tt-500

Looks like you will have to sell it to me, if ya cannot find one, lol, looks nice that mate.

Oct 07, 2014 | 1989 Honda GB 500 Clubmann TT

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1989 Honda GB 500 Clubmann TT service manual

Hi, Anonymous the vast majority of service, parts fiche, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee around $10 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. If there is no $ sign after the manual link it is free to download for viewing or printing. To download your manual please click on the blue links below. Good luck and have a wonderful day
Honda GB500 Twin Service Repair Manual
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Oct 04, 2013 | 1989 Honda GB 500 Clubmann TT

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Engine oil capacity for 1989 Honda GB 500 Clubmann TT @

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Hi, I have an 1988 Honda GB400 and the speedo has just started flickering i.e. the needle does not stay still. What causes this and how can I repair it? Cheers

Sounds like the speedo cable needs to be lubricated. I'm not familiar with the GB 400 but a flickering or bouncing needle is a cable problem. Take care of lubricating it so. Neglecting it can lead to a broken cable which is a more difficult and expensive job. Good luck.

Jul 22, 2009 | 1989 Honda GB 500 Clubmann TT

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Hi there!

you need a 15W30 grade of .48 liters on each fork. Normally, i go .5 liters on each fork. Make sure your forks are clean before replacing its fork fluid.


Apr 01, 2009 | 1989 Honda GB 500 Clubmann TT

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try these guyz m8,,ive told a few people here, and they havent come back sayin its **** yet ,,so,, here yuh go,

Mar 26, 2009 | 1987 Honda GB 500 Clubmann TT

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Hi George,
Excellent description of your problem, I presume you are keeping the bike upright when checking the level on your dipstick?
I remember on some Honda's there used to be a Sight glass set in the Gearbox casing a small round Window with level marks up either side so when bike held upright the glass should be half full.
George! you should be able to see oil on the stick without running the bike so keep upright and top up as necessary.
Hope this helped, please remember to rate my effort?
Paul 'W'

Jan 23, 2009 | 1986 Honda GB 500 Clubmann TT

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Gas spilled

If the paint is, indeed, wrinkled up, then the battle is already over. That paint is coming off, one way or another. Best thing (in the short term) to do is to sand the wrinkled area out making sure you overlap well into into the non-wrinkled paint. Use a little self etching primer (or rust converter) and then top that off with a few good coats of paint. That will, at least, seal the area and prevent the appearance of rust.

Nov 20, 2008 | 1988 Honda GB 500 Clubmann TT

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