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YZ450F DTX Update

This is a discussion on YZ450F DTX Update within the 4-Stroke Motorcycles - Yamaha forum, part of the 4-Stroke Motorcycle Forums category; Just got back from the Dyno and some riding. Just installed a CRF450 41mm carb on the YZF. WOW!! After ...

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  #1  
Old 04-19-2003, 04:23 PM
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Default YZ450F DTX Update

Just got back from the Dyno and some riding. Just installed a CRF450 41mm carb on the YZF. WOW!! After leaning out the main to a 158, we made a few runs on the dyno...up to 58.2hp from 55.6...wow! 2.4 hp just from a carb swap(and cables and throttle).
Sent out a brand new set of stock cams to be reground last week...can't wait to get them back, as 60/61hp should be no problem. And along with the HP, the Torque is going up as well. Again, having the TPS disconnected not only kept the HP up, but kept the curve smooth as well.
Next weekend is the biggest Non National, Springfield Ohio 1/2 mile...DEEP cushion(wish we could use knobbies). Will make sure to let everyone know how it goes. Tryce
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Old 04-19-2003, 07:20 PM
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Talking We wish y'all the best of luck

Tryce and Stevie,
John and I want to wish y'all good luck at Springfield. We will all be rooting for her while we are at Houston for the planning meeting.

Please have a safe trip and a good, fast and safe race.

Bill and John Barnard
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Old 04-19-2003, 09:09 PM
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Default Re: YZ450F DTX Update

Timing sucks...I will be in Waco the following week!
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Old 04-23-2003, 08:58 AM
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Default Re: We wish y'all the best of luck

Quote:
Originally posted by Florida 393
Tryce and Stevie,
John and I want to wish y'all good luck at Springfield. We will all be rooting for her while we are at Houston for the planning meeting.

Please have a safe trip and a good, fast and safe race.

Bill and John Barnard
Springfield what?...I know that there is a track in Springfield Mass, near sixflags new england. Where is your springfield?
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Old 04-23-2003, 09:15 PM
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Default Re: YZ450F DTX Update

This weekend we will be at springfield Ohio. On Memorial Day we will be at Springfield Il...The Mile. We will be in New Hampshire in June, I believe...the closest we get to New England.
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Old 04-24-2003, 01:04 AM
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Default Re: YZ450F DTX Update

FFRacing11x,

what is the reason the CRF carb works so good on the YZF? That is interesting to say the least. I obviously don't have a clue about carbs...
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Old 04-24-2003, 07:00 AM
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Default Re: YZ450F DTX Update

Woody, only reason being the CRF carb is a 41mm and the YZF a 39.
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Old 04-24-2003, 07:41 AM
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Default Re: YZ450F DTX Update

Quote:
Originally posted by FFRacing11x
This weekend we will be at springfield Ohio. On Memorial Day we will be at Springfield Il...The Mile. We will be in New Hampshire in June, I believe...the closest we get to New England.
Too bad...I will be going to New Hampshir in may but not to ride, Im going for my friends fund-raiser. He has Cistic Fibrosos(CF)...Its serious sh!t.

I want to get into racing around New England...wheres the best place to start?
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Old 04-24-2003, 08:13 AM
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Default Re: YZ450F DTX Update

Quote:
Originally posted by 2strkepwrLT250R
Too bad...I will be going to New Hampshir in may but not to ride, Im going for my friends fund-raiser. He has Cistic Fibrosos(CF)...Its serious sh!t.

I want to get into racing around New England...wheres the best place to start?
You want to race DTX now?
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Old 04-25-2003, 02:53 AM
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Default Re: YZ450F DTX Update

Quote:
Originally posted by FFRacing11x
Woody, only reason being the CRF carb is a 41mm and the YZF a 39.
Ahh, I didn't know the size of the carb on the YZF.
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Old 10-02-2003, 11:51 PM
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Default Re: YZ450F DTX Update

could u tell me what the tp being disconnected does? would this work on the quad? i think i have an idea but would like to know for sure. also what do u have done to your bike to get that hp numbers thanks
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