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Good morning all. I was adjusting the throttle cable a bit on the bike as I wasn't getting much grab on the clutch. The cable itself has seen better days, so I just ordered a replacement. However, I noticed that after the bike warms up, it idles at 1500 to 1600 RPMs. I did some searching on the forum and a couple of folks mentioned the intake manifolds. I looked at mine, and they had some sealant on the rubber. I did the WD40 trick, and sure enough, the rubber is just plain bad. I'd like to replace them. I searched the web, and I saw some on eBay and Amazon that were quite inexpensive. Nothing says GL500, but same engine, same parts, I reckoned. Anyhow, has anyone used them, and is it worth $20, at least for now? These are the ones I'm referring to.

Or, if anyone has any suggestions, please let me know.

Thanks,
Dan
 

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CX500 intakes will not fit your GL500. AFAIK no one is making intakes for the GL500. You have two choices, find good used ones or repair yours. A suggested repair is to use heat shrink tube to cover the rubber. An alternative is a section of bicycle inner tube and there is always Shoe Goo.
 

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i have new gl500 and gl650 manifolds made

they use a welded aluminum intake like my carb kits with a vm36 replaceable rubber intake spigot

i am just getting ready to some stock built up and ported as well as pictures done for my website

they are not as cheap a solution as the cast and vulcanized ones but the dies and production run for those is to costly

with little chance of using a batch of 1000 sets in my lifetime

so these will be in the 120 per set range but a lifetime product you can even powder coat or polish them

they are simple to install you dont remove the carbs to do it
 

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I used heat shrink tubing on my old things intakes years ago and its still good which surprised me I expected it to peel or decay
within a year or so.
I only changed them because the new intakes ( for ZABs not GLs) were so cheap

I reckon if you get a some of 60-55mm diameter glue lined heat shrink it'll slip on nicely
and do until/unless you want to throw money at it
 

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You should be very careful with buying intake manifolds on services like Amazon and eBay. I, too, once needed intake manifolds on a rare engine model. You couldn't buy them in a regular store, so I had to look for such items on Amazon and eBay. It's worth saying, for starters, that scammers on Amazon can cheat you out of a steep amount of money even if you buy these https://www.amazon.com/gp/product/B081TQ3L2Y super cheap yoga socks. And I knew that by the time I started looking for intake manifolds. It was very difficult. I went through 9 circles of hell until I finally found a pretty good deal for me that didn't try to scam me.
 
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