Hi all
Hope you guys are having fun with your old Hus-ski's and Diablo. I still have my 500 . Again i'm having trouble to start it. Gas won't go to carb. If i put gas in carb it will run but not for long. Put a carb kit in it last year but with no good result . Can someone take my carb and look at it and fix it Please .
I really would like to run the diablo this year with my grand kids
Take care all
Rock
12/18/11
- Barrie2777
- Posts:1547
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- Location:Arundel Quebec
Re: 12/18/11
Have you checked the vacuum hose for a leak or perhaps it is competely kinked.
- Go Go Diablo
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Re: 12/18/11
Rock,
If the carb was running fine last year and it won't pull the fuel up the hose this year, I would think your needle is stuck in the seat. Shoot a good shot of compressed air into the fuel inlet cap of the carb and it should pop it loose.
If you cannot find another resource to check out your carb, I could do it for you. You need someone who can test the pop-off pressure of the needle and seat.
Good luck my friend,
Bruce
If the carb was running fine last year and it won't pull the fuel up the hose this year, I would think your needle is stuck in the seat. Shoot a good shot of compressed air into the fuel inlet cap of the carb and it should pop it loose.
If you cannot find another resource to check out your carb, I could do it for you. You need someone who can test the pop-off pressure of the needle and seat.
Good luck my friend,
Bruce
Too many Diablos and parts to count.
Yamaha 600 SX
Yamaha 600 SX
- snocatpete
- Posts:376
- Joined:Sun Feb 07, 2010 8:39 pm
Re: 12/18/11
Hi Roch
Here is my two cents on things you could look at - if the fuel is not coming up to the carburetor, like Barrie says it could be a kinked vacuum hose or a hole in the vacuum hose. This vacuum hose operates your fuel pump that is in the carburetor and if it is kinked, blocked or leaking, it will not operate the fuel pump. having said that, have you tried taking the fuel line off at the carburetor and placing it lower than the fuel tank to see if fuel flows freely through that line, making sure the fuel line filter and tank exit are not blocked. If there is a blockage or restriction the fuel pump can not over come it and draw the fuel up to the carburetor.
If fuel is flowing freely and the vacuum hose is good, then the problem is inside the carburetor and I would suspect the fuel pump itself. This means you need to take the bottom end of the carburetor apart and make sure the check valves are not stuck or make sure there is not a blockage in one of the ports to these valves. If you have it open at that time, make sure the needle valve is not stuck as Bruce suggested. I would suspect a problem with the fuel pump first.
If fuel is getting to the caburetor but still won't run, then check the needle valve and idle , off idle and main jet ports and make sure they have no blockage as well. Hope this will help you out some. I just overhauled my 502 carburetor last weekend so it is fresh in my mind.
Peter
Here is my two cents on things you could look at - if the fuel is not coming up to the carburetor, like Barrie says it could be a kinked vacuum hose or a hole in the vacuum hose. This vacuum hose operates your fuel pump that is in the carburetor and if it is kinked, blocked or leaking, it will not operate the fuel pump. having said that, have you tried taking the fuel line off at the carburetor and placing it lower than the fuel tank to see if fuel flows freely through that line, making sure the fuel line filter and tank exit are not blocked. If there is a blockage or restriction the fuel pump can not over come it and draw the fuel up to the carburetor.
If fuel is flowing freely and the vacuum hose is good, then the problem is inside the carburetor and I would suspect the fuel pump itself. This means you need to take the bottom end of the carburetor apart and make sure the check valves are not stuck or make sure there is not a blockage in one of the ports to these valves. If you have it open at that time, make sure the needle valve is not stuck as Bruce suggested. I would suspect a problem with the fuel pump first.
If fuel is getting to the caburetor but still won't run, then check the needle valve and idle , off idle and main jet ports and make sure they have no blockage as well. Hope this will help you out some. I just overhauled my 502 carburetor last weekend so it is fresh in my mind.
Peter
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Re: 12/18/11
Good thoughts Peter - always go back to the basics
Too many Diablos and parts to count.
Yamaha 600 SX
Yamaha 600 SX
Re: 12/18/11
Thank you all for your suggestion. Will try again this week if not will sent the carb away
Rock
Rock
Hus-ski 200A
65 Snowbug
73 Olympique 300
71 Snow Cruiser
196? Rat Hus-ski
65 Snowbug
73 Olympique 300
71 Snow Cruiser
196? Rat Hus-ski
Re: 12/18/11
Well today i change the vacuum hose and the motor started right away. I let it run for a few minutes and runs pretty good. Might need some carb ajustment but so far so good.
Tks all
Rock
Tks all
Rock
Hus-ski 200A
65 Snowbug
73 Olympique 300
71 Snow Cruiser
196? Rat Hus-ski
65 Snowbug
73 Olympique 300
71 Snow Cruiser
196? Rat Hus-ski