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97 challenger 1800 sittng for 4 years... please help
- Thread starter bellski
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jhjesse
Well-Known Member
Are you sure you connected everything back correctly? Maybe recheck the pulse line.
Also take a look at the filter. Last season I have a new filter that was defective. The symptoms were as you are describing.
Do you have fuel selector valves on your boat? If so, then the right one could be clogged. Best thing to do is replace it.
Almost forgot. Run it and pull the choke out a little. If it clears up...you have narrowed it to a fuel delivery problem.
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Are there two rectifiers on a boat with twins? If so, that could be the issue.
jhjesse
Well-Known Member
Yes there are two rectifiers. It is possible the right one is going bad.
The reason I'm thinking carbs is because bellski just took them off and rebuilt them.
Sportster-2001-951C-Stock
Well-Known Member
Current status summary based on my understanding: The starboard side motor was showing signs of hesitation prior to the carb rebuild, now runs well (unsure if problem was corrected and if yes, how).
The port side motor is now not running correctly, only maybe 30% power.
Sounds like a dead hole. Could be a dry carburetor, which also means potential lack of lubrication due to lack of fuel to distribute the lubricant within the dry cylinder.
I'd pull the plugs and reconfirm compression, may be no damage if the motor wasn't run very long with a dry hole. If there's any doubt, shoot some lube in the cylinder in case it's dry and mix up a squirt bottle of pre-mix to fuel the suspected dry hole, then see if it pops back to life by squirting some fuel mix into the carb.
The port side motor is now not running correctly, only maybe 30% power.
Sounds like a dead hole. Could be a dry carburetor, which also means potential lack of lubrication due to lack of fuel to distribute the lubricant within the dry cylinder.
I'd pull the plugs and reconfirm compression, may be no damage if the motor wasn't run very long with a dry hole. If there's any doubt, shoot some lube in the cylinder in case it's dry and mix up a squirt bottle of pre-mix to fuel the suspected dry hole, then see if it pops back to life by squirting some fuel mix into the carb.
jhjesse
Well-Known Member
So if you feel that the fuel system is good then crank the right motor with a volt meter on the battery. You should see 13.5 to 14vdc. If the voltage is lower than 12 or higher than 14.5vdc approx. then your rectifier is bad and needs replacing. Bad rectifiers make these engines do funny things.
DeejaysGTI
Member
Wait. Fuel pump? What fuel pump? There is a fuel pump on these?
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DeejaysGTI
Member
You mean the pulse part of the carb? I'm no expert on carbs but I believe the pulse part is only for low rpm. Experts chime in
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Sportster-2001-951C-Stock
Well-Known Member
Yes, the fuel pump is a mechanical diaphragm type pump that's actuated by the crankcase pulsations via the pulse tubing connection. If the fuel pump is worn out or tired in some way there may not be enough capacity remaining to keep up with the demand placed on it by the fuel consumption.
jhjesse
Well-Known Member
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DeejaysGTI
Member
Ah. My speedster 97 does not
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DeejaysGTI
Member
Honestly I like oil injection. It's simple and you just fill straight from the gas pump. Many members here will say they have never seen a oil injection pump fail. It's usually the hoses that go bad. And they are simple to replace (before they go bad)
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