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My 1980 GL 1100 has 63,000 miles and has never had the timing belt changed. I have had it since 1988 and it had 5,400 miles on it when I bought it. Am I in danger of it breaking and bending the valves like auto engines. I have done engine work all my life but no motorcycle engine work. Thanks Bart
 

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Definately change them, if you can do a car one you can do these, be advised one side will need holding in place whilst you fit the belt as it wants to move away from the timing mark
 

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If you can/have changed belts on a Ford Escort or VW Rabbit style engine, you can definitely do a Gold Wing!!! First time is scary, after that, ho hum! Just double and triple check the timing marks before you start and after. Turn engine over carefully with smallest wrench you have that fits the crank nut and do it at least 2 times to make sure all is clear. Also, if you have access to any shop manual read it carefully and use it.
 

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My 1980 GL 1100 has 63,000 miles and has never had the timing belt changed. I have had it since 1988 and it had 5,400 miles on it when I bought it. Am I in danger of it breaking and bending the valves like auto engines. I have done engine work all my life but no motorcycle engine work. Thanks Bart
A trick you can use doing this (after you set everything at #1 TDC) is to loosen all the valve adjusting nuts & screws, taking all the tension off all the valves, making it much easier to get the belts exactly right....then re-adjust the valves properly. When aligning the belts, you gotta get down on your knees & look at the timing marks STRAIGHT ON...it's very easy to be a tooth off if you're looking at it from an angle from above or from the side! ;)
 

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A trick you can use doing this (after you set everything at #1 TDC) is to loosen all the valve adjusting nuts & screws, taking all the tension off all the valves, making it much easier to get the belts exactly right....then re-adjust the valves properly. When aligning the belts, you gotta get down on your knees & look at the timing marks STRAIGHT ON...it's very easy to be a tooth off if you're looking at it from an angle from above or from the side! ;)
You should also consider replacing (rebuilding) both 40 year old belt tensioners with new bearings...involves removing the stocks idlers from the base they are mounted on, & replacing them with aftermarket parts...
This can be done using 2 each : Gates #42025 idlers, Dorman #610276 wheel studs, 12mm X 1.5 pitch locking nuts...
these items are available cheap at RockAuto.com, as well as the Gates T274 timing belts you'll need.
I discovered this mod years ago on Randaaks website, check it out!
 

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one of our members made a tutorial for that

 
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