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Search: Posts Made By: Dustodust
Forum: Crazy-Awesome almost Dakar racers (950/990cc) Yesterday, 09:39 PM
Replies: 18
Views: 834
Posted By Dustodust
I got a chance to test it today at 54F metal temp...

I got a chance to test it today at 54F metal temp in the garage
It started after about 30 seconds of start/stall It seemed like the problem was it was on one carb
normally it would have taken...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) Yesterday, 09:34 PM
Replies: 18
Views: 834
Posted By Dustodust
Wow thats cold ! I had my FCRs when I lived at...

Wow thats cold !
I had my FCRs when I lived at a cabin in the mountains and it was really struggling at 40F most of the year
I had about a 60/40 chance of starting/killing battery
at under 30F...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-28-2015, 11:44 PM
Replies: 18
Views: 834
Posted By Dustodust
Assembly continues in the lab : today I lost my...

Assembly continues in the lab :
today I lost my cold start parameters. the motor soaked ambient temperature in the garage and Laser thermometer says the motor metal is 84F. Game over for testing...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-28-2015, 11:43 PM
Replies: 18
Views: 834
Posted By Dustodust
thanks still in Beta test phase Im not a...

thanks
still in Beta test phase
Im not a machinist but got an offer from a freind to make them on a CNC program (if it works knock wood)
or maybe Tinwelp can make them
n ot really profitable...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-27-2015, 10:42 PM
Replies: 18
Views: 834
Posted By Dustodust
Built Beta test mount today after work : <a...

Built Beta test mount today after work :

<a href="https://www.flickr.com/photos/101983905@N04/17563207224" title="DSC02954 by DAVID MILLER, on Flickr"><img...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-27-2015, 03:56 PM
Replies: 18
Views: 834
Posted By Dustodust
you got me beat my cave man tooling can only...

you got me beat
my cave man tooling can only go +/- .01 if that
hey ...I bought a bench belt sander and fresh new fine file yesterday at least :wink:
I almost got a used mini lathe the other day...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-26-2015, 11:51 PM
Replies: 18
Views: 834
Posted By Dustodust
I built a brass seat to seal the plunger. ...

I built a brass seat to seal the plunger.
there is a seal in the end of the plunger
spring tension holds it to a tight seal against the plunger seat .
The plunger seat requires a raised "boss"...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-26-2015, 04:44 PM
Replies: 23
Views: 1,518
Posted By Dustodust
Hey Tim ! can you even believe this ? I...

Hey Tim ! can you even believe this ?

I thought the pics were photo shopped
I think we could (maybe) do it .....but why ?
I know Troy could do it on his SE but dont think he would want to
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-26-2015, 03:22 PM
Replies: 23
Views: 1,518
Posted By Dustodust
Actually the pictures dont do it justice. This...

Actually the pictures dont do it justice.
This trail is double black diamonds and although enzo rode the "easiest" direction and got lucky that Durwood was low enouigh to cross (we have had it...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-25-2015, 09:42 PM
Replies: 18
Views: 834
Posted By Dustodust
Cringed and cut the cake time to break into...

Cringed and cut the cake
time to break into the intake
Ive come this far cant stop now

I soldered tubing to a brass plate that I shaped in a curve to fit snug
now I will need to get two...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-25-2015, 09:29 PM
Replies: 23
Views: 1,518
Posted By Dustodust
Dude that is insane ! I know every rock rut and...

Dude that is insane !
I know every rock rut and turn in that trail because I helped rebuild it after the McNally fire with Trailtricks and Ranger Bob and some ktmtalk crew
Is the lower part...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-25-2015, 02:07 AM
Replies: 18
Views: 834
Posted By Dustodust
Brass tube is interference fitted into aluminum...

Brass tube is interference fitted into aluminum valve body block
looking down fuel inlet side with removable end cap to hold plunger seat
you can see the crossover for the vacuum ports in and out...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-24-2015, 02:27 AM
Replies: 18
Views: 834
Posted By Dustodust
FCR Chokes Part 3

.......In this endeavor to adventurize the downdraft pumper carbs by retrofitting the undrilled carb bodies with cold start enrichment, I came to the settle on a theory that the FCR flat racing...
Forum: The Garage 05-21-2015, 07:07 PM
Replies: 4
Views: 620
Posted By Dustodust
I did a high power DC wind on my KTM 525 back in...

I did a high power DC wind on my KTM 525 back in 2004 ( before the trail Tech ones came out cheep)
we used to jump the coils to get Full DC but I rewound and it came out great .the original was...
Forum: Some Assembly Required 05-21-2015, 03:42 PM
Replies: 15
Views: 1,164
Posted By Dustodust
Great thanks !

Great thanks !
Forum: Some Assembly Required 05-21-2015, 03:23 PM
Replies: 15
Views: 1,164
Posted By Dustodust
Making Control Cables

Can I pick your brain for any wisdom/experience in making my own cables up from flanders stock
http://www.flandersco.com/Products.html
I will be making a dual choke cable for FCR choke plungers...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-19-2015, 08:16 PM
Replies: 83
Views: 4,353
Posted By Dustodust
Maybe the axle nut kept coming loose because it...

Maybe the axle nut kept coming loose because it was mounted on the wrong side
so to fix it somebody torqued the bejeebers out of it

the extreme tightness caused the entire axxle, bearing and...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-19-2015, 08:04 PM
Replies: 83
Views: 4,353
Posted By Dustodust
I agree a decent welder who knows aluminum...

I agree
a decent welder who knows aluminum could build that back out no harm no foul
but be careful and get references there are few aluminum welders who know their stuff
as far as machining...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-19-2015, 07:16 PM
Replies: 3
Views: 247
Posted By Dustodust
that fitting is a suction side inlet to the oil...

that fitting is a suction side inlet to the oil pump.
There is a grommet in there under the flange (#19) , it wraps over the screen(# 18) to make the seal
something else to check
Quite often...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-18-2015, 10:39 PM
Replies: 25
Views: 1,302
Posted By Dustodust
the diagram is similar to the FCR MX or Flat...

the diagram is similar to the FCR MX or Flat Racing
CVRD Downdraft enrichment is different in that keihin introduces the metered fuel at the bowl and atomizes it leaving the bowl, then instead of...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-18-2015, 10:10 PM
Replies: 25
Views: 1,302
Posted By Dustodust
it would be great if it worked random priming...

it would be great if it worked
random priming does not work with these
pump some ritual holy water juju in and hope
hit the starter
it idles for a few secionds then dies
give it a magic dose...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-18-2015, 12:40 AM
Replies: 25
Views: 1,302
Posted By Dustodust
I studied the chokes on the CVRD carbs and they...

I studied the chokes on the CVRD carbs and they offer hope . It looks like keihin took another approach and the venturi rises up with passages from the float bowl in an A shape and then into a large...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-17-2015, 06:02 PM
Replies: 25
Views: 1,302
Posted By Dustodust
I think there is a deeper reason that the...

I think there is a deeper reason that the downdraft racing carbs came without "chokes". That is the problem of "recondense" as we discovered, it is a large obsatcle.
The standard FCR venturi circuit...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-17-2015, 05:42 PM
Replies: 25
Views: 1,302
Posted By Dustodust
Thanks but we already have a fuel squirter built...

Thanks but we already have a fuel squirter built in the pumper carbs
What I am attempting to acheive is precise metered venturi cold start enrichment
no simple task, there are layers of...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-17-2015, 12:04 PM
Replies: 25
Views: 1,302
Posted By Dustodust
yes I am about to run out of cold air test...

yes I am about to run out of cold air test environment myself.
seems about 55F is the cutoff
I am still getting 45F overnite but only get one try maybe two

Regretfully I missed your previous...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-17-2015, 11:26 AM
Replies: 25
Views: 1,302
Posted By Dustodust
? I always thought that was just the early...

?
I always thought that was just the early accelerator pump
we already have one of those
thanks for the lead

one of the problems is fail-safe for hydrolock
any system of forced fuel...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-17-2015, 01:03 AM
Replies: 25
Views: 1,302
Posted By Dustodust
Got the third carb rigged up and it tested...

Got the third carb rigged up and it tested beautiful
the bike started right up and idled but soon died
it never has started right up with the FCRs when cold.... EVER
(NEVER EVER)
I then...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-15-2015, 07:46 PM
Replies: 60
Views: 3,870
Posted By Dustodust
up above every gloomy overcast sky the sun...

up above every gloomy overcast sky

the sun is shining bright and cheerful :wink:
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-14-2015, 10:46 PM
Replies: 25
Views: 1,302
Posted By Dustodust
other concept in the works as well although...

other concept in the works as well
although this one involves purchase of aftermarket float bowl plugs and hopefully the will be thick enough to tap a compression fitting into
the enrichment jet...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-14-2015, 10:30 PM
Replies: 25
Views: 1,302
Posted By Dustodust
Third carb concept is nudging out in front by a...

Third carb concept is nudging out in front by a nose :
got the XR80 carb arrived today from ebay and I worked it up
got a mount built and brass tubing sealed at each end eliminating void traps in...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-12-2015, 04:45 PM
Replies: 33
Views: 1,947
Posted By Dustodust
Alex knows the ktm big bike and wont be guessing...

Alex knows the ktm big bike and wont be guessing around like the big box tuners :
http://www.konflictmotorsports.com/
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-10-2015, 01:48 PM
Replies: 22
Views: 744
Posted By Dustodust
I wonder if the KTM dirt bike front caliper (like...

I wonder if the KTM dirt bike front caliper (like from 525, 530, 250 2stroke etc)
is the same as 9xx rear
because the front pads from dirt bike are the same size as 9xx rear
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-10-2015, 01:26 PM
Replies: 33
Views: 1,947
Posted By Dustodust
Geometry is a very complex subject it is also...

Geometry is a very complex subject
it is also relative to shock height, how far the swingarm is into the fulcrum also effects the behavior of the rake
raising the tubes so that they are above the...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-10-2015, 01:05 PM
Replies: 5
Views: 445
Posted By Dustodust
the "shock" you feel may just be static discharge...

the "shock" you feel may just be static discharge

rapid ion exchange
nothing to be alarmed about
it just means you are a very negative person :freaky
cheer up
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-10-2015, 12:42 PM
Replies: 25
Views: 1,302
Posted By Dustodust
killed the battery yesterday trying to start it...

killed the battery yesterday trying to start it without any enrichment set up
took 4 hours charging on the tender
almost killed it again today
after 12 attempts to start with throttle twist pump...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-09-2015, 12:33 AM
Replies: 25
Views: 1,302
Posted By Dustodust
option on top of the pile external enrichment...

option on top of the pile
external enrichment fed from a Honda generator carb float bowl
float bowl can be fed fuel from the existing fuel pump
the top of the carb can be left...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-09-2015, 12:02 AM
Replies: 25
Views: 1,302
Posted By Dustodust
another option is drilling passages in the carb...

another option is drilling passages in the carb bodies
but seems like extremly risky business finding or fabricating drills that long and
lining them up witout wandering
the parts are available...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-07-2015, 08:58 PM
Replies: 73
Views: 5,934
Posted By Dustodust
2007 990 may need ECU reflash if the low...

2007 990
may need ECU reflash if the low voltage discombobulated ? but it should start at least yud think ?
ignition switches had problems in 06-07

2007 SE's and SM's had carbs/ ADV went FI
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-07-2015, 08:54 PM
Replies: 73
Views: 5,934
Posted By Dustodust
the 11 volts is a big red flag but hard to...

the 11 volts is a big red flag
but hard to tell if it is unrelated

did you check for wiring problems from the bottom up along the frame ?

ignition switch ?

sidestand switch ?

new...
Forum: Crazy-Awesome almost Dakar racers (950/990cc) 05-06-2015, 10:47 AM
Replies: 51
Views: 2,893
Posted By Dustodust
you could try adjusting the lever if it has a...

you could try adjusting the lever if it has a little red knob but I doubt it will do anything , its either on or off
does it feel like it hits a spot and gets firm when you squeeze the lever ?
or...
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