Question about Honda GB 500 Clubmann TT Motorcycles
Honda GB 500 which runs very hot, especially in the clutch housing area.No slip.very hot after 1 hour rest.my 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
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.
Honda GB500 Twin Service Repair Manual
Honda CB Owners Manuals
Posted on Nov 01, 2017
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Posted on Jan 02, 2017
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: http://www.gadgetjq.com/clutch_spring_replacement.htm
It cost me $40 and 3 hours of time with an impact wrench.
Posted on Jan 26, 2009
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
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
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 engine....run to normal temperature and thn reset the air-mixture screw +/- either way.
Hope this helps!
Posted on Oct 24, 2009
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