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Post by sport573 on Feb 20, 2012 10:00:27 GMT -6
Hello all. I had this trouble late last year when it was still nice out...lol Anyway it's time to start working on it again. So here is the problem, hopefully someone can help!
If started everyday, the bike starts and runs great. (Little overheating problem, when driving more than 30 min., that needs to be fixed, but starts and runs good.)
If the bike sits for 3 days or more, it will not start on it's own. Meaning needs sprayed with starting fluid.
Is it possible for the carb to be losing it's prime? I have checked fuel flow and float bowls, everything checks out.
Any help would be appreciated, also any comments on overheating would help some too!
P.S. Radiator was flushed, cleaned, new fluids, fan is working!
Thank You
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Post by zekkfett on Feb 20, 2012 10:15:43 GMT -6
First suggestion: valve adjustment.
Second suggestion: most of the petcocks for 454's have a PRI setting, this is prime. When the bike sits for a couple days or longer, flip i over to PRI for 10-15 seconds, let the carb bowls fill, then flip it back to on.
Third: just because you flushed the radiator doesn't mean it's clean. 90% of the time radiators get crudded up with electrolysis; a thick white substance. Electrolysis occurs when there is an electrical charge going through water. Grounds occur through the block, the block grounded through the frame. If there is a charge going through water (via the engine block), positive or negative, electrolysis is the result. This plugs the end of the fins in the side tanks of the radiator. If you only have 10 fins of 50; for example, unplugged; you are not going to get proper flow. A brand new radiator would be the wisest choice, next best is take it to a radiator shop, have them disassemble it and properly clean it. The third and worst choice, is get on ebay and find a used one: but you risk the exact same problem you have now. You'd be buying somone else's problem. You CANNOT stop electrolysis! Proper flushing on a regualr basis can help though.
Overheating could also be as simple as a bad thermostat, or maybe just some air in the system. What exactly does it do? (Temp rises, the falls abruptly, just keeps rising and won't go down?) And in what situation does it occur? (All the time, just while idling, in traffic?) Some more info can help us get you pointed in the right direction.
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Post by sport573 on Feb 20, 2012 11:38:17 GMT -6
First, thank you for your help.
I have around 35-40 min. ride one way each day. On average it will be close to the red by 3/4 through the trip. I have found the only way to lower it while riding is backing the rpm's down to around 5000-5500. Try to hold consistent in there. If i back off or accelerate much it heats more. I cross 3 small towns on the way. When i come to these towns if i clutch it for half mile or so it will cool down some, however by the next town i have to do it again.
I have never hit the red but have been close to it. It will not come down very far once it gets up there, but usually i can get it to hold and not get any hotter.
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Post by eaglerider on Feb 20, 2012 13:21:34 GMT -6
Sounds like indeed, u have a crudded up radiator, or sticking thermostat.....but I lean toward the radiator.
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Post by wanchesenative on Feb 20, 2012 22:31:38 GMT -6
I'm thinking RADIATOR! I had similar issues. I took the radiator of and, NOT THAT I'M RECOMMENDING THIS, filled it with battery acid. After I let it sit for I think about 30 minutes, I emptied it, flushed it SEVERAL times and reinstalled. This took care of my overheating issue. A more safer solution would be "CLR." Many guys on here have used CLR to clean the crud out of their radiators. A simple flush isn't always enough to get the scale that builds up in these radiators.
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Post by zekkfett on Feb 20, 2012 22:39:45 GMT -6
+1 to the CLR. Or there are recipes for some homemade flushes out on the net.
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