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Author Topic: Dumont  (Read 7213 times)

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Offline BDI

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Dumont
« on: November 29, 2009, 05:07:22 PM »
Who went to Dumont this weekend. I made the dunes against all odds and a saw more open class bikes at the hill then I've see in a long time. about five K-5's and three cr-5's. were any of you guys there?
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Offline britincali

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Re: Dumont
« Reply #1 on: November 30, 2009, 07:18:01 AM »
Hey man!   Im the guy with the nitrous CR, that KX of yours is a screamer!!
I just wish my bike wasnt such a piece of s**t all weekend and we'd have had some better runs.

   Its now gonna be parked for a month or so for a re-ring and replace the gears in the tranny.

Haw was the party at your camp after you left ours?
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Offline BDI

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Re: Dumont
« Reply #2 on: November 30, 2009, 11:57:57 AM »
We had a great time :lol: I was hopeing to look you up again so we could get that race on with a fresh bottle but I stayed up to late and didn't get out of bed early enough  :-( sorry didn't mean to stand you up. Thanks for the props on my bike  :-) Your bikes pretty bad ass also, I love the extended swingarm and the nitro bottle on the front fender  :evil:. I was was just talking s**t about there not being any fast bikes at the hill anymore but you guys proved me wrong  8-) thanks for the raceing and the hospitality at your camp.
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Offline britincali

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Re: Dumont
« Reply #3 on: November 30, 2009, 01:07:59 PM »
Not a problem, its always a dune thing to meet new peeps with cool toys  :-D

I dint make it over to the hill on sunday either, I dint go to bed untill 4.30 then woke up at 10 hungover as s**t!!   I loaded up and went home  :|

Definatly hit me up next time your going out and Ill try to make sure the bikes running so I can put a decent whooping on that green thing  :-D :-D :-D :-D :-P

Is the other guy that ate it with the KX5 a member of this board?   Have you heard if he's ok ?
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Offline britincali

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Re: Dumont
« Reply #4 on: November 30, 2009, 01:33:36 PM »
Heres the bike so you green guys can see that no powervalve dont mean slow  :lol:






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Offline BDI

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Re: Dumont
« Reply #5 on: November 30, 2009, 01:46:45 PM »
      No power valves don't mean slow,it just means no low. lol  :-D  I'm not sure about the kid that crashed. I have never seen someone crash up the hill like that. We were haulling ass when he started cart wheeling. He was either in the top of third or the bottom of fourth when it happend.
« Last Edit: November 30, 2009, 01:55:34 PM by BDI »
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Offline jfabmotorsports.com

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Re: Dumont
« Reply #6 on: November 30, 2009, 02:37:51 PM »
Nice bike. How is the NOS handled? Maybe a close up? JFAB
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Offline britincali

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Re: Dumont
« Reply #7 on: November 30, 2009, 03:06:03 PM »
Quote from: jfabmotorsports.com on November 30, 2009, 02:37:51 PM
. How is the NOS handled?

Its a wet kit with a fuel pump int the airbox and the solenoids mounted up by the rad, the fogger nozzle is located in the intake boot, theres a tethered arm switch that powers the pump and arms a switch mounted inside the throttle.

Ive got pics of the build but dint want to cluttler the thread lol



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Offline jfabmotorsports.com

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Re: Dumont
« Reply #8 on: November 30, 2009, 03:12:23 PM »
I built this as a gag. Post your pics, please.

Jfab
« Last Edit: April 22, 2013, 04:10:13 AM by jfabmotorsports.com »
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Offline britincali

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Re: Dumont
« Reply #9 on: November 30, 2009, 03:14:44 PM »
I was going mount the nozzle just like you did in the pic but it would hang out to far.

Ill get some pics up now....
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Offline britincali

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Re: Dumont
« Reply #10 on: November 30, 2009, 03:20:19 PM »
Battery in seat...



Fuel pump / pump relay / solenoid relay in airbox..



Switch in throttle tube...



Fuel and nitrous solenoids...



Fogger...





Mounted the bottle bracket to the tripple clamps...


« Last Edit: November 30, 2009, 03:29:54 PM by britincali »
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Offline britincali

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Re: Dumont
« Reply #11 on: November 30, 2009, 03:28:19 PM »
I ended up adding a second petcock as fueling from a T was becoming an issue..

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Offline ShadeTreeFab

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Re: Dumont
« Reply #12 on: November 30, 2009, 03:30:21 PM »
always wondered how a 2 stroke would handle nitrous, sick
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Offline britincali

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Re: Dumont
« Reply #13 on: November 30, 2009, 03:32:04 PM »
It cracks the intake side of pistons and keeping the bottle pressure around 1000-1100psi is a PITA but when its singing its fukin awsome  :-D
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Offline ShadeTreeFab

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Re: Dumont
« Reply #14 on: November 30, 2009, 03:38:29 PM »
might want to try lighting coil/ bottle heater combo.
i wonder if its the lower temp on the intake charge that's helping it crack
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