82 Honda CM450 carb overflow

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finn747 · #1 Unread post by **finn747** » Fri Jul 15, 2011 5:46 pm

Hello,

I have an 82 Honda CM450 and it is leaking about 1 drop of gas every second out of the left float bowl overflow. I have taken the bowl off and everything looks good. The floats are clean move fine and are in good shape.

Anyone have any ideas on what the issue can be?

Thanks,

Sean

Johnj · #2 Unread post by **Johnj** » Fri Jul 15, 2011 6:58 pm

Hello and welcome to the forum. The left carb's float is set wrong. Or the float needle seat is dirty. It's not shutting down the fuel soon enough. So it's leaking.

finn747 · #3 Unread post by **finn747** » Fri Jul 15, 2011 7:12 pm

Thanks, I will try and adjust them tomorrow.

Johnj · #4 Unread post by **Johnj** » Fri Jul 15, 2011 7:18 pm

I don't think it's off by much. Good luck.

finn747 · #5 Unread post by **finn747** » Sat Jul 16, 2011 12:58 pm

So I swapped the floats and float valve from the right to the left, the right side is still fine and the left still leaks. I will try shooting some compressed air up there and hopefully that will do the trick.

Johnj · #6 Unread post by **Johnj** » Sat Jul 16, 2011 6:28 pm

Up where? and is it a CM 450 A, B, or C?

finn747 · #7 Unread post by **finn747** » Sun Jul 17, 2011 5:29 pm

It is a C i think. I am going to try and shoot some air up into the float needle seat then clean it out. I'm hoping it may do something.

Johnj · #8 Unread post by **Johnj** » Sun Jul 17, 2011 5:57 pm

Do you have a manual for your bike?

finn747 · #9 Unread post by **finn747** » Sun Jul 17, 2011 6:53 pm

Yes just looked it up and it is a C model

Johnj · #10 Unread post by **Johnj** » Mon Jul 18, 2011 4:25 am

Ok set your float level like it says in the book.

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82 Honda CM450 carb overflow

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