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General GS500 Discussion / Re: Strange and scary clanking sound
« Last post by herennow on Today at 07:07:14 AM »
55k km on the chain is a lot. Frequent adjustment required means it's wearing out. Id really think about a new one If I were you. I'm on 3rd chain in 50 k km.
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General GS500 Discussion / Re: Glowing Muffler Headers Okay
« Last post by herennow on Today at 07:04:58 AM »
Coils are well known to have symptoms that start only when hot. This is quite common.  you can test this by swapping coils around and seeing if problem moves to other side of engine.
you can tell if bike is runnign on one side by checkign temperature of each side (by hand - dangerous, by cheap 20$ infra red thermometer - safe) or by pulling cap off spark plug and seeing if bike runs.  should run - badly - on each cylinder alone. DONT DO THIS FOR LONG - JUST A FEW SECONDS - IT CAN STRAIN YOUR COILS.

Does seem you are running too rich. Maybe check fuel height with clear tube - you could maybe be getting leakage past the needle valve outside seat (bad o-ring)

Good luck
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General GS500 Discussion / Re: Glowing Muffler Headers Okay
« Last post by user11235813 on Today at 06:40:48 AM »
I replaced the plugs and it ran much better until it got hot. The inside of the muffler still got orange red hot but took longer. I think one of the plugs were bad so it was running one cylinder and burning all that fuel from one side in the muffler.
Since it ran really well and on both cylinders until it got hot I think a coil might be bad and weaken as it gets hot. Iím going to try running it once it cools down and see if that helps. Has anyone had a bad coil kill a spark plug?

Easy enough to test the coil with with a multimeter.
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General GS500 Discussion / Re: Strange and scary clanking sound
« Last post by user11235813 on Today at 06:38:30 AM »
OK, it turns out that the clanking sound was most of the problem which is solved and the residual problem was a number of little things shifting around in my rear pannier, when I took that off I found another culprit... in the alcove where the tool box sits at the back there is a bit of metal attached to the plastic which I think is meant to be a hook to stretch a piece of rubber over the toolkit, I can't see what else it's for, but one bolt came off and that also was flapping around.

Then the final bit of shifting around was caused by the chain being loose even though I tightened up just a few weeks ago. The chain went the first 30k kms without ever needed any adjustment, now it needs to be checked regularly. There's 55k kms on the chain now. I used to keep the chain at the loose end of the range at 30mm slack, but now I have adjusted it to the tight end of the range at 20+mm and now everything is fine.

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Mine started suddenly wanting to tank slap after two years of being perfect. With a passenger on the back it's not a problem. My rear tyre is cactus and I strongly suspect that it is in fact the rear tyre causing the problem, I'll know for sure next month when I replace the tyres. Currently runny BT45's which were brilliant when new, but I'm going to try the Michelin, next go.

It just started happening one day, which led me to suspect bearing and the like but they all feel good.
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General GS500 Discussion / Re: Fuel Line Warning
« Last post by user11235813 on Today at 06:28:06 AM »
The OEM lines are expensive but worth it. The ease of using the correct sizing cannot be overestimated, that is without even factoring in the peace of mind of knowing they are not going to split. And removing and reattaching them is a breeze. 0.02c
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Odds n Ends / Re: Triumph Talk
« Last post by Watcher on Today at 04:51:54 AM »
Problem is that I really want to use the existing mirrors, and they are not compatible with most other bar end mirror inserts. I have a set on the way that appears to have a rubber expansion plug type insert that I may be able to rob from those mirrors and use with the Napoleons, or otherwise I can just use the new mirrors which are less cool by half, but at least they will be functional.


If you have a local CycleGear they will have bar-ends with either the rubber type of expanding plug or a system of two metal bushings cut at an angle such that when they are drawn together they push each other "out".  Something like the latter should be easily adapted to work with at most a change of bolt/nut to the proper size that the mirrors already use.
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if you are in the UK you'll stall the engine as well.

Unfortunately so. We have been pushing to get clutches legalised, but in the meantime most people here have to get those shady backstreet clutches fitted. Half the time they're fakes that really mess your bike up so we tend to avoid using them.

Haha smartypants  :icon_razz:

I was under the impression that "UK Method" for emergency stops is to leave the clutch out until just before stopped.  It's supposed to make the rear end less likely to lock up.  In my own testing I found that was NOT the case, or it made little difference, but an unfortunate result is when you do lock the rear you lock up the engine as well.  I don't like the idea of coming to a stop with a "disabled" vehicle.
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General GS500 Discussion / Re: Fuel Line Warning
« Last post by Kiwingenuity on Today at 02:33:59 AM »
Or maybe it's the presence of ethanol.

Yep - Ethanol will degrade fuel lines.. Add to that while it is dregrading all the little particulates are going to be making their way into your carb and equally causing potential issues.

Pretty sure you can get fuel line that has some sort of additional liner in it to prevent this from happening, but here we don't get Ethanol blending at all, so haven't seen this type of fuel hose here.

Pretty sure the Haynes manual has a 5 year recommendation on replacing fuel lines too.
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General GS500 Discussion / Re: 89/90 GS500 carb problem - only idles
« Last post by Coltrane on Today at 01:30:49 AM »
Hi all - I haven't updated on this for a while.  It's been 6 weeks since i ordered a pair of carb rebuild kits (see above), but they are MIA.  (ETA was 15-20 days.)

I know it's a noob question,  but can anyone point me to a source for the proper o-rings to rebuild
(a) a pair of BST33 carbs (89-90);
(b) a pair of the 3 jet carbs for later models.
I have both sets of carbs, and as winter is setting in to northern Alberta, rebuilding both sets of carbs and getting the GS running would be a nice start to the winter project.  Thanks in advance.
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