Question about 1998 Honda SLR 650

1 Answer

Loss of acceleratiion

The bike idles good, when I throttle up the bike fails to accelerate. What or where and what tools will I need to diagnose and repair the problem?

Thanks in advance

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Hi and welcome to FixYa,

Initially, postback abd describe what has been done on the bike. Are the air filters stock or aftermarket open breathers? Are the exhaust stock? Was there any recent work done on the carbs? Was the bike on storage or is it for everyday use and the problem just came up.

Offhand check for air leaks on the air filter side, fuel starvation caused by kinked fuel line or cloggd / blocked fuel cut-off valve.

Good luck and thank you for using FixYa.

Posted on Jun 22, 2009

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Hi, Norman the following applies to carbureted also fuel injected models and the usual suspects are:
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2. Failed alternator/generator and or voltage regulator.
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2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
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7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
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12. Restricted, blocked or kinked fuel line.
13. Fuel tank empty.
14. Fuel tank contaminated with ethanol sludge.
15. The gas cap is not venting properly or fuel tank venting system blocked.
16. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
17. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you need please click on the blue links below. Good luck and have a wonderful day.
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