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Polished Carb Venturi

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I just got the Air Box side "Intake" and Engine Side "Intake" of my Carburetor Venturi polished :cry: (Looks Good!), anyway what my question and problem is, is....when I got the carb back on the bike and started it up, it wouldn't idle, or run at low rpms. One thing I think I could be is when I was polishing the carb Venturi, I noticed that all the "Holes In the Venturi" (Like the "Hole" for the Hotstart, and Choke) were rounded or ported out in the Shape of a bowl, instead of being flat, due to the grinding, and polishing. I don't think that would do anything but you never know, another thing is that there could be some polishing compound in the carb somewhere foobaring things up. I was wondering if anyone had any experiance with this, or any advise. Thanks! :cry:

------------------------------

__________.:2004 CRF450:.__________

<ul type="square">[*]Fastway Accesories....Cable Clip, Case Saver, Clutch Bracket, F3 Footpegs, and Axle Blocks.

[*]Works Connection Skid Plate, Engine Gaurds, Frame Gaurds, Brake Caliper Gaurd, Rad Braces, and Anodized Goodies.

[*]Trick MX Parts ~ Anodized Goodies.

[*]Factory Connection - 1.76Kg Pressure Springs, and Oil Lock Collars.

[*]ASV Rotator Clamp

[*]Renthal--> "MC Bend" Fat Bars, and 49T Rear Sprocket

[*].:MX Bonz:. 1 1\8" Bar Clamps, and Sure-Lok Rim Lock Hardware

[*]LightSpeed Carbon Fiber Fork Wraps

[*]Tach/Hour Meter

[*]Polished Side Cases

[*]Racetemp Engine Thermometers

[*]Nology Hot-Wire

[*]SRC - 1.6kg/cm2 Rad Cap

[*]SDG Complete, High Foam Seat

[*]Fuel Line Mod

[*]Zip-Ty Fuel Mixture Screw

[*]JD Jetting Kit

[*]Factory R&D P-38 Lighting

[*]AirBox Mod

[*]Back-Fire Screen Mod

[*]Storm Link

[*]Twin-Air Air Filter

[*]D.I.D ERT Gold Chain

[*]13-49 Gearing

------------------------------

Don't Hesitate Accelerate!!!! :cry:

____________________________________

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It sounds to me like, you really %$@#!% of your carb, your going to need a new one definetly!!! I think there only around $1200.00 :cry: :cry:

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Effin "A"....I'll get right on that! :cry:

------------------------------

__________.:2004 CRF450:.__________

<ul type="square">[*]Fastway Accesories....Cable Clip, Case Saver, Clutch Bracket, F3 Footpegs, and Axle Blocks.

[*]Works Connection Skid Plate, Engine Gaurds, Frame Gaurds, Brake Caliper Gaurd, Rad Braces, and Anodized Goodies.

[*]Trick MX Parts ~ Anodized Goodies.

[*]Factory Connection - 1.76Kg Pressure Springs, and Oil Lock Collars.

[*]ASV Rotator Clamp

[*]Renthal--> "MC Bend" Fat Bars, and 49T Rear Sprocket

[*].:MX Bonz:. 1 1\8" Bar Clamps, and Sure-Lok Rim Lock Hardware

[*]LightSpeed Carbon Fiber Fork Wraps

[*]Tach/Hour Meter

[*]Polished Side Cases

[*]Racetemp Engine Thermometers

[*]Nology Hot-Wire

[*]SRC - 1.6kg/cm2 Rad Cap

[*]SDG Complete, High Foam Seat

[*]Fuel Line Mod

[*]Zip-Ty Fuel Mixture Screw

[*]JD Jetting Kit

[*]Factory R&D P-38 Lighting

[*]AirBox Mod

[*]Back-Fire Screen Mod

[*]Storm Link

[*]Twin-Air Air Filter

[*]D.I.D ERT Gold Chain

[*]13-49 Gearing

------------------------------

Don't Hesitate Accelerate!!!! :cry:

____________________________________

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I doubt that your polish job makes much difference at lower RPM's, but you can try opening up your fuel screw in 1/4 turn increments to see if it helps.

If it doesn't make any difference, then you should probably begin disassembling it and cleaning ALL the ports with carb cleaner and compressed air.

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Well I couldn't seem to jet the problem so now I'm going to tear it apart, and clean the heck out of it. Then i'll post what I find.

------------------------------

__________.:2004 CRF450:.__________

<ul type="square">[*]Fastway Accesories....Cable Clip, Case Saver, Clutch Bracket, F3 Footpegs, and Axle Blocks.

[*]Works Connection Skid Plate, Engine Gaurds, Frame Gaurds, Brake Caliper Gaurd, Rad Braces, and Anodized Goodies.

[*]Trick MX Parts ~ Anodized Goodies.

[*]Factory Connection - 1.76Kg Pressure Springs, and Oil Lock Collars.

[*]ASV Rotator Clamp

[*]Renthal--> "MC Bend" Fat Bars, and 49T Rear Sprocket

[*].:MX Bonz:. 1 1\8" Bar Clamps, and Sure-Lok Rim Lock Hardware

[*]LightSpeed Carbon Fiber Fork Wraps

[*]Tach/Hour Meter

[*]Polished Side Cases

[*]Racetemp Engine Thermometers

[*]Nology Hot-Wire

[*]SRC - 1.6kg/cm2 Rad Cap

[*]SDG Complete, High Foam Seat

[*]Fuel Line Mod

[*]Zip-Ty Fuel Mixture Screw

[*]Factory R&D P-38 Lighting

[*]AirBox Mod

[*]Back-Fire Screen Mod

[*]Storm Link

[*]Twin-Air Air Filter

[*]D.I.D ERT Gold Chain

[*]13-49 Gearing

------------------------------

Don't Hesitate Accelerate!!!! :cry:

____________________________________

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Well, I seemed to have fixed the initial problem with the dying. The problem was I had the flat sheet of metal on the Carb Slide upside down. So I got that fixed, and now It just needs a little jetting.

------------------------------

__________.:2004 CRF450:.__________

<ul type="square">[*]Fastway Accesories....Cable Clip, Case Saver, Clutch Bracket, F3 Footpegs, and Axle Blocks.

[*]Works Connection Skid Plate, Engine Gaurds, Frame Gaurds, Brake Caliper Gaurd, Rad Braces, and Anodized Goodies.

[*]Trick MX Parts ~ Anodized Goodies.

[*]Factory Connection - 1.76Kg Pressure Springs, and Oil Lock Collars.

[*]ASV Rotator Clamp

[*]Renthal--> "MC Bend" Fat Bars, and 49T Rear Sprocket

[*].:MX Bonz:. 1 1\8" Bar Clamps, and Sure-Lok Rim Lock Hardware

[*]LightSpeed Carbon Fiber Fork Wraps

[*]Tach/Hour Meter

[*]Polished Side Cases

[*]Racetemp Engine Thermometers

[*]Nology Hot-Wire

[*]SRC - 1.6kg/cm2 Rad Cap

[*]SDG Complete, High Foam Seat

[*]Fuel Line Mod

[*]Zip-Ty Fuel Mixture Screw

[*]JD Jetting Kit

[*]Factory R&D P-38 Lighting

[*]AirBox Mod

[*]Back-Fire Screen Mod

[*]Storm Link

[*]Twin-Air Air Filter

[*]D.I.D ERT Gold Chain

[*]13-49 Gearing

------------------------------

Don't Hesitate Accelerate!!!! :cry:

____________________________________

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You can polish the exhaust side of the carb but your not supposed to polish the intake side. The intake track is "dimpled" to purposefully roughen up the air to help atomize the fuel so it burns more evenly in the cylinder. I'm surprised no one pointed that out to you before you did the polishing. But heh, the guy who did it probably got paid to do something that doesn't help at all. Sorry if you got taken. :cry:

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Well, I seemed to have fixed the initial problem with the dying. The problem was I had the flat sheet of metal on the Carb Slide upside down.

Hahahah...many a CRF owner has done that! What is funny, is that it LOOKS like it the correct orientation when it is on wrong!

I am guilty of it too....and when I read your post I waas thinking EXACTLY that, and then I read down and saw you figured it out heheh.

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NO NO NO!! I figured it out!!!In a dream I had at night and I told him, and he fixed it!! C'mon jason tell them the truth!! :cry:

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