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post #1 of 12 Old 04-27-2010, 01:55 PM Thread Starter
 
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Question Help with Float Bowl setting

Anybody have a process for checking the float bowl setting for an 02 660? They Clymer manual doesn't seem right or my float is way out of whack from the factory, which I doubt.

I sure could use a factory yamaha FSM

Thanks for your help.
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post #2 of 12 Old 04-27-2010, 02:08 PM
 
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Link below should get you pointed in the right direction.

Need carb help from you experts!

09 Griz 700(815cc) - Black, 25in Buzzsaws/30in Zillas, Uni filter, 47mm bored throttle body, custom machined primary, 1.5mm shim, 18g greaseless overdrive weights, Fox Podium Shocks, Modified RDC 2in lift, Warn RT25, 2in snorkels

06 Kodiak 450 - Green, stock rhino tires, uni, modded stock exhaust, machined clutch, 1mm shim, 500rpm wet springs and 4-660 weights

06 YFZ 450 - White, Uni, pro flo intake, hmf pipe, ITP holeshots, 36 tooth rear sprocket
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post #3 of 12 Old 04-27-2010, 02:52 PM Thread Starter
 
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Quote:
Originally Posted by griz450rocket View Post
Link below should get you pointed in the right direction.

Need carb help from you experts!
Thanks for the link. Read the entire thread. There seems to be a couple ways to set the float. I guess I'll figure it out. I think mine is out of adjustment.

The pics below show my Actual measurement, Clymer page and lastly what it should be set at....if I read that darm POS Clymer manual right .

thanks
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post #4 of 12 Old 04-27-2010, 03:00 PM Thread Starter
 
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One thing I noticed is that the Clymer manual has you hold the carb in such a way that the bowls are leaning against the fuel shutoff valve. I seen in the other thread, they are holding it right side up and horizontal and taking the .51 inch measurement.
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post #5 of 12 Old 04-27-2010, 03:23 PM Thread Starter
 
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Here is a pic with the carb held horizontal across the carb float bowl edge. You can't see the numbers but it's .51 inches.

I'm wondering if I need to tweak the thing. Looks allot like that other guys float....somewhat sunken into the carb. I'm thinking of bending the tab....

thoughts?
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post #6 of 12 Old 04-27-2010, 04:36 PM
 
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Something seems wrong, it shouldn't be that far off. Is the spring loaded pin on the end of the fuel shutoff needle stuck? That float definitely looks like it's too low in the last pic.

09 Griz 700(815cc) - Black, 25in Buzzsaws/30in Zillas, Uni filter, 47mm bored throttle body, custom machined primary, 1.5mm shim, 18g greaseless overdrive weights, Fox Podium Shocks, Modified RDC 2in lift, Warn RT25, 2in snorkels

06 Kodiak 450 - Green, stock rhino tires, uni, modded stock exhaust, machined clutch, 1mm shim, 500rpm wet springs and 4-660 weights

06 YFZ 450 - White, Uni, pro flo intake, hmf pipe, ITP holeshots, 36 tooth rear sprocket
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post #7 of 12 Old 04-27-2010, 05:10 PM Thread Starter
 
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Quote:
Originally Posted by griz450rocket View Post
Something seems wrong, it shouldn't be that far off. Is the spring loaded pin on the end of the fuel shutoff needle stuck? That float definitely looks like it's too low in the last pic.
It sure is. As a matter of fact, the new one I installed from my Shindy carb rebuild kit already had it installed. It just clips on the top of the needle shut off, if we're talking the same thing. Like I said, she just doesn't look right, however, it looks simular to the pic in the other thread. Take a peek at his pic and let me know what you think.
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post #8 of 12 Old 04-27-2010, 05:26 PM
 
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In your pic you aren't measuring from the right surface. You need to be measuring from the gasket surface so it's probably closer than it looks in the pic.

On a 660 that a friend of mine owns I raised the needle 1 clip position and adjusted the idle mixture 1/2 turn out and it got rid of the popping on decel and ran much cooler.

09 Griz 700(815cc) - Black, 25in Buzzsaws/30in Zillas, Uni filter, 47mm bored throttle body, custom machined primary, 1.5mm shim, 18g greaseless overdrive weights, Fox Podium Shocks, Modified RDC 2in lift, Warn RT25, 2in snorkels

06 Kodiak 450 - Green, stock rhino tires, uni, modded stock exhaust, machined clutch, 1mm shim, 500rpm wet springs and 4-660 weights

06 YFZ 450 - White, Uni, pro flo intake, hmf pipe, ITP holeshots, 36 tooth rear sprocket
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post #9 of 12 Old 04-27-2010, 05:41 PM Thread Starter
 
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Quote:
Originally Posted by griz450rocket View Post
In your pic you aren't measuring from the right surface. You need to be measuring from the gasket surface so it's probably closer than it looks in the pic.

On a 660 that a friend of mine owns I raised the needle 1 clip position and adjusted the idle mixture 1/2 turn out and it got rid of the popping on decel and ran much cooler.
I think it's on the gasket surface. I'll keep playing around till I figure the thing out. Btw, I'll have a dynojet kit and it will be on the 4th clip position. Sounds like your friend was having other issues as that sounds like the decel portion of the carb. I think there is a jet just for that and it may be just dirty...sounds like you got it worked out anyways.

Thanks for your help.
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post #10 of 12 Old 04-28-2010, 10:15 AM
 
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His did it from when it was new, jetted too lean from the factory.

09 Griz 700(815cc) - Black, 25in Buzzsaws/30in Zillas, Uni filter, 47mm bored throttle body, custom machined primary, 1.5mm shim, 18g greaseless overdrive weights, Fox Podium Shocks, Modified RDC 2in lift, Warn RT25, 2in snorkels

06 Kodiak 450 - Green, stock rhino tires, uni, modded stock exhaust, machined clutch, 1mm shim, 500rpm wet springs and 4-660 weights

06 YFZ 450 - White, Uni, pro flo intake, hmf pipe, ITP holeshots, 36 tooth rear sprocket
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post #11 of 12 Old 04-28-2010, 10:39 AM
 
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Check your slide diaphragm for a hole in it. That will cause a lean condition.

09 Griz 700(815cc) - Black, 25in Buzzsaws/30in Zillas, Uni filter, 47mm bored throttle body, custom machined primary, 1.5mm shim, 18g greaseless overdrive weights, Fox Podium Shocks, Modified RDC 2in lift, Warn RT25, 2in snorkels

06 Kodiak 450 - Green, stock rhino tires, uni, modded stock exhaust, machined clutch, 1mm shim, 500rpm wet springs and 4-660 weights

06 YFZ 450 - White, Uni, pro flo intake, hmf pipe, ITP holeshots, 36 tooth rear sprocket
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post #12 of 12 Old 04-28-2010, 12:09 PM Thread Starter
 
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Quote:
Originally Posted by griz450rocket View Post
Check your slide diaphragm for a hole in it. That will cause a lean condition.
LOL - got one on order. Mine has a hole in it. Darn thing does not come in the Shindy rebuild kit and cost as much as the darn kit
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