Carb dilemma 1988 GL1500


Information and questions on GL1500 Goldwings (1988-2000)
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DJ Rebel
Posts: 7
Joined: Sat Feb 22, 2020 11:04 am
Location: United States
Motorcycle: 1988 Goldwing Tike with MotorTrike conversion. GL1500 and a 1984 Gl1200 Goldwing.

Carb dilemma 1988 GL1500

Post by DJ Rebel »



I bought my 2nd 1988 Goldwing that had been sitting for years. Carbs were missing so I bought a set off of a 1993, cleaned them out and got the bike running. I don't know enough about vacuum line routing but the 1993 splits numbers 18 and 19 but the 1988 also has numbers 16 and 17 that connect to a box under the right lock box that says carb but I don't know where to connect them. The bike runs but is very rich. Also, the 1993 uses a cable for cruise control but obviously the 1988 has a different set up because there is no cable. I watched a YouTube video and it showed the 1988 used some sort of electrical something that attached by the throttle cable but not having the original carbs, I have no clue. The third thing is that there is a metal pipe that attaches to the filter box that bends arond and goes down to the carbs. There is a rubber line on one end but I didn't see anywhere to connect it. Any help will be appreciated.



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ct1500
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Location: Glastonbury,CT
Motorcycle: 1988 GL1500
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Re: Carb dilemma 1988 GL1500

Post by ct1500 »

DJ Rebel wrote:
Sun May 31, 2020 9:55 pm
I bought my 2nd 1988 Goldwing that had been sitting for years. Carbs were missing so I bought a set off of a 1993, cleaned them out and got the bike running. I don't know enough about vacuum line routing but the 1993 splits numbers 18 and 19 but the 1988 also has numbers 16 and 17 that connect to a box under the right lock box that says carb but I don't know where to connect them. The bike runs but is very rich. Also, the 1993 uses a cable for cruise control but obviously the 1988 has a different set up because there is no cable. I watched a YouTube video and it showed the 1988 used some sort of electrical something that attached by the throttle cable but not having the original carbs, I have no clue. The third thing is that there is a metal pipe that attaches to the filter box that bends arond and goes down to the carbs. There is a rubber line on one end but I didn't see anywhere to connect it. Any help will be appreciated.
You will have to cap the 16&17 hoses because they can no longer be used. The cruise cable is attached into the throttle (manifold) for the 88, a device on left side frame which just gives you the pull and push cables attached to carb. The cruise will still work with the new carb rack. The 88 had the cruise cancel switch (by turning throttle back) at carbs, later years had it built into the (manifold). You just won't have cruise cancellation by twisting throttle back anymore. Toss the metal pipe for now which was for the float bowl vents, attach a short piece of hose to the two metal carb fittings that are left and tie them together with a tee fitting and leave the 3rd port of tee open just about at the bottom of float bowls or thereabouts.
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DJ Rebel
Posts: 7
Joined: Sat Feb 22, 2020 11:04 am
Location: United States
Motorcycle: 1988 Goldwing Tike with MotorTrike conversion. GL1500 and a 1984 Gl1200 Goldwing.

Re: Carb dilemma 1988 GL1500

Post by DJ Rebel »

Thank you for your assistance. It is greatly appreciated.

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