Steve Saunders Goldwing Forums - View Single Post - Backfire

Thread: Backfire
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post #10 of (permalink) Old 03-06-2019, 11:03 AM
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Join Date: Feb 2010
Location: Anaheim, California, USA
Model: GL1500, GL1800
Posts: 2,757
Originally Posted by uniqueslumber View Post
I have a 1985 Honda Goldwing Interstate that will not start 98% of the time, it turns over when the starter button is pushed but about the seventh time a loud double barreled shot gun blast comes of the exhaust when it does start , again about 2% of the time it runs but sounds like its loading up . Timing ok ,coils check good, carbs ok I should also mention this happened within a matter of two days when it first didn't start I jiggled and tightened battery connections and rode it home no problems even stopping and restarting again then second day the back firing started,
Suggestions Please and Thank you

Verify that the Rubber Isolator/s (between carb and intake manifold) are Snug... I've so often found them Loose or Cracked, in which case it Leans out the fuel mixture.
If that's happening on yours, then it may explain why it's hard to start, but then backfires (due to the exhaust system being full of wrongly-mixed air/fuel, when it does finally fire)

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I void warranties

Dark Side #590

GL1500, 1990SE, 220k miles
Front: Bridgestone Battlax BT45, 41psi
Rear: Austone 175R16, 50psi

GL1800, 2003, 60K miles [following virginity reconstruction]
Front: Bridgestone Battlax BT45, 41psi
Rear: Pirelli Winter Snowcontrol Series3, Run Flat, 41 psi
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