03' 450s carburetor woes - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
 
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post #1 of 5 (permalink) Old 11-27-2018, 01:45 PM Thread Starter
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03' 450s carburetor woes

Now that its gotten cold a few times here (10 to 25) my 450s takes a lot of cranking to start. After it starts it will run and idle all day. But, I need to run it 1/2 choke to get full power at low speeds. So, I'm guessing here......dirty carburetor or what? I don't notice it when it's +35 and it will fire right off after sitting all night.
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post #2 of 5 (permalink) Old 11-27-2018, 03:32 PM
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Dirty carb gets my first vote. Seafoam might help if you use it before the carb stops flowing. 1oz per gallon of gas.
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post #3 of 5 (permalink) Old 11-28-2018, 09:05 AM Thread Starter
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I did seafoam it about 25 miles ago and still running that out of tank.
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post #4 of 5 (permalink) Old 11-28-2018, 12:10 PM
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Turn the pilot screw out about 1/2-3/4 turns and see what it does. That will richen the low side of the carb.

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post #5 of 5 (permalink) Old 12-05-2018, 11:20 AM Thread Starter
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Quote:
Originally Posted by toodeep View Post
Turn the pilot screw out about 1/2-3/4 turns and see what it does. That will richen the low side of the carb.
I'll try this next if it gives me fits next time. This weekend and dosed it again with seafoam. The tank was nearly empty when I dumped it in and I started it up while hooking up my trailer. I forgot about it and it idled for a while. Once it gulped up the seafoam it died. I put all the gas I had at home in (1/2 gallon) and got it refired enough to get it loaded. I stopped and filled it up, then hauled it an hour to go ride. It started up and ran like trash for a minute, then cleared up and was ok. I rode it several miles and got it good and hot and by the end of the day it was running better than ever. Maybe hauling it around with a bunch of seafoam in the carb loosened some crud up. We'll see.
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