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200 Massimo UTV

Old Oct 12, 2015 | 06:22 PM
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Default 200 Massimo UTV

Hi

I'm getting gas to my carburetor but it won't come through to the motor. Any ideas??

It does have electric choke and you can pour gas through the carb and it'll run.

Thanks
 
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Old Oct 12, 2015 | 06:52 PM
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How are you pouring gas through the carb? Sounds like clogged jets, clogged passageway, or possibly floats stuck in up position? Not sure how the floats would get stuck up though.
 
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Old Oct 12, 2015 | 07:45 PM
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I pour gas through the back of the carb, where the breather is.

The jets are spotless, passageway isn't clogged and the float isn't stuck. The carburetor is a pd24j. Could it be the valves need to be set?
 
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Old Oct 13, 2015 | 03:25 AM
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Does it continue to run once you have it started, this would indicate a faulty choke? Re-set the valves anyway, it can't hurt to have them right, and check compression if that doesn't cure it, below 90psi and you need to look inside the engine.
 
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Old Oct 14, 2015 | 05:53 PM
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Ok, do you know what the valve clearance is on the exhaust and intake valves? Still trying to figure this thing out. Thanks for all your help.
 
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Old Oct 14, 2015 | 08:54 PM
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At $20 shipped for a new carb on ebay. I would go that route to eliminate the carb. I have a similar carb on my 250 Joyner Side by Side. They are not a simple carb. Plus they come with a new auto choke (it's called something different) and are known problems. They have internal diaphrams that go bad as well. Not worth even trying to rebuild.
 
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Old Oct 15, 2015 | 03:21 AM
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I would try 0.003" gap for both inlet and exhaust valves if you can't find the correct settings, that ensures some clearance for starting.
 
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Old Oct 15, 2015 | 07:38 AM
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Originally Posted by merryman
I would try 0.003" gap for both inlet and exhaust valves if you can't find the correct settings, that ensures some clearance for starting.
If he's able to run the motor by pouring gas thru the carb inlet, how would valves be the issue?
 
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Old Oct 16, 2015 | 02:40 AM
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With no compression due to either valves or any other reason, there is little "suck" on the inlet stroke, so it doesn't get enough fuel into the cylinder. Unlikely to be the problem here as, once running, an engine will usually continue to run with low compression, just be very bad to start. However that1redhead recons to have the carb right, and asked if he/she should set the valves, my answer "it can't hurt to have them right." Unlike your suggestion, it costs nothing.
 
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Old Oct 16, 2015 | 06:54 AM
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Originally Posted by merryman
However that1redhead recons to have the carb right, and asked if he/she should set the valves, my answer "it can't hurt to have them right." Unlike your suggestion, it costs nothing.
Understood

I guess you can check compression too before adjusting valves. I am still leaning towards the carb.
 
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