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Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Jim Colombotos, Jan 6, 2013.
There's an idea.
Could be as simple as a momentary pushbutton.
If I may give my 2 cents.
I still carry an extra set of filters with me on very long trips. You never know, better be safe than sorry.
Since these filters are cost prohibitive, I installed the purge unit from CJ to see if that would pay off over time. It did without a doubt in my case.
Of course, there are thousands of 990s out there and thousands that haven't had an issue. Yet, my first fuel starvation happened at 4000 times on California gas..... so technically "good gas".
Making a unit was my first idea as it is electronically pretty simple. Yet I wanted a fully automated system without additional buttons. All in all, I thought that the price of the unit was relatively cheap considering the parts to purchase and the time I would have to invest in it. But it surely is a fun project.
Don't forget that extra one way valve as not all purge unit system are not created equal. The stock one way valve is ridiculously small.
In the end, the best solution would be an external fuel pump. Just like the 950s.
It's being worked on!
Tell us a little about the clcye process. Should I stall the bike, do I have to wait for the whole process to happen before I start it again? I already hate to wait for the FI to cycle (I'm old, but immature), and I'd hat to add time to the restart cycle.
Ride (or not)....turn the ignition off.....walk away.
on a more serious note: every time you turn the ignition off, within a few seconds, the fuel pump is started in reverse for several seconds then stops.
That's it. Nothing happens when the ignition is switched on again.
I understand how it works- but if the ignition is switched back ON during that process (while reversing), does it automatically cancel itself?
Very true. But an external pump along with external filters would be so much easier to deal with when you're stuck in the middle of nowhere (dropping 6+ gallons of fuel into....?? and destroying the o-rings....and then dealing with the warped tank that don't align. I don't want to do it again). I won't even mention the insignificant cost of traditional fuel filters.
Until there is a proven plug and play external fuel pump solution, the purge unit is my answer to the issue.
yes, it cancels the process.
I have one done 20000 km no problems filters clean last inspect
I like this idea, but it should be $29.95...
Go ahead, make one.
I haven't tried one, but this looks like the easiest/ cheapest solution to the problem. If it gets clogged, pull it out, shake off the crap and stuff it back in. I may have to look this up and see if it can be made to fit.
I emailed Scott at CRF stuff. He has the ADV himself.............but nothing he sells fits.
I checked on the KTM ADV fitment and the KAWI filter is very close. THe OD is about .010-.020 too large, I ca force it into the tank and it will seat, but the problem is that now the ID is too small for the KTM gas cap to fit into.
It might be possible to remove the flange on the Splitstream, open up the ID someway and figure out a way to retain the filter in the neck of the tank as the flange would have to be removed to prevent leaking.
LMK if that's something you are interested in pursuing and I'll take some pics to further clarify.
That was the about a month ago.
CJD 950/990 Adv tank filler filter kit - est release date early April.
More details coming soon.....
Terrific CJ, I assume that the bag will help keep gas from splashing out as well during filling. Good job seeing a need and developing a product. I will take two.
This sounds like an easily surmountable problem, assuming there is enough "meat" to allow opening up the ID. If you don't mind, can you PM me his e-mail, I'd like to get some of those photos. I'd be willing to take a dremmel to it...
Interested...look forward to the details.
Any chance for filter kit for Ned's aux tank as well?
If I'll take the Adv tank filter kit I'll need one for the back as well.
No idea. I don't have one of those here for testing. Easiest and cheapest solution to that would be an inline filter on the transfer line to main tank. That how we setup our rear tanks. It's easy to keep an eye on, and only a few bucks to change out every 10,000 miles.
If anyone has one they want to send in or call with filler neck dimension specs, I could take a look at it.
Anyone close to Craig willing to help?
I have not read all these threads so hopefully this isn't something that is one of the items that everyone just 'knows' about.
Does anyone install a filter in the balancer line/cross over line between the two halves (under the battery)? I am thinking just a normal fuel filter. It should then at least filter 1/2 of the fuel going to the fuel pump?
Has anyone got a long term report on these purge modules?