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Search: Posts Made By: roger 04 rt
Forum: GS Boxers 04-25-2015, 07:20 PM
Replies: 6
Views: 374
Posted By roger 04 rt
Rather than just guessing, measure the amount of...

Rather than just guessing, measure the amount of fuel returning to the tank from the pressure regulator. It should be 2 liters per minute at idle or with the pump on but engine not running. If it is,...
Forum: GS Boxers 04-25-2015, 07:15 PM
Replies: 18
Views: 763
Posted By roger 04 rt
I'm not saying the problem is in-tank hoses but...

I'm not saying the problem is in-tank hoses but for future reference, it is very hard to check the in-tank hoses by examining them. They can look perfectly good but have splits that can only be seen...
Forum: GS Boxers 04-25-2015, 03:45 AM
Replies: 18
Views: 763
Posted By roger 04 rt
I make a lot of tests on the Oilseeds fuel system...

I make a lot of tests on the Oilseeds fuel system and get the bogging, dying symptoms when there is grossly, too much fuel. It's hard to see how that happened.

One possibility is that the return...
Forum: Thumpers 04-23-2015, 05:10 AM
Replies: 465
Views: 39,530
Posted By roger 04 rt
That's a great result. Good low torque figures....

That's a great result. Good low torque figures. Lambda shifting by LC-2 or AF-XIED makes a nice improvement.
Forum: GS Boxers 04-23-2015, 04:59 AM
Replies: 26
Views: 1,093
Posted By roger 04 rt
I don't have specs on the oil temp sensor handy...

I don't have specs on the oil temp sensor handy but you can read out the error codes as a check, instructions here: http://www.largiader.com/articles/motronic.html.

You could connect a DVM to the...
Forum: GS Boxers 04-22-2015, 04:40 AM
Replies: 26
Views: 1,093
Posted By roger 04 rt
Jetwhine: Here is a link to how the Motronic...

Jetwhine:
Here is a link to how the Motronic calculates fueling for your bike. At a cold start, it relies heavily on time, oil temperature and the Long Term fuel trim (which is likely to be correct...
Forum: GS Boxers 04-21-2015, 08:30 PM
Replies: 26
Views: 1,093
Posted By roger 04 rt
Edit: I thought you had a pm 1150. Will your bike...

Edit: I thought you had a pm 1150. Will your bike start with the throttle held open a bit?


350 mV is perfect. I doubt tps is your problem.

Your bike should cold start easily with the fast...
Forum: GS Boxers 04-21-2015, 08:20 PM
Replies: 17
Views: 631
Posted By roger 04 rt
Did you replace the in-tank hoses? They fail all...

Did you replace the in-tank hoses? They fail all the time, even when they look good.
Forum: GS Boxers 04-18-2015, 04:47 AM
Replies: 12
Views: 508
Posted By roger 04 rt
A few years ago, Happy Wanderer install an LC-1...

A few years ago, Happy Wanderer install an LC-1 on his R1100RT to answer the questions being asked in this thread. Here is a link that explains how the R1100 and Motronic are fueled based on which...
Forum: GS Boxers 04-17-2015, 03:52 AM
Replies: 32
Views: 1,536
Posted By roger 04 rt
It's hard to say without some data to rule things...

It's hard to say without some data to rule things in/out. If you could borrow a GS-911, it could be set into "log realtime values" mode. Then you'd let the bike sit overnight and go through the start...
Forum: GS Boxers 04-17-2015, 02:54 AM
Replies: 13
Views: 905
Posted By roger 04 rt
Isn't an Oilhead most stable with the bike on its...

Isn't an Oilhead most stable with the bike on its side stand, handlebar locked full left, with the transmission in 1st gear?
Forum: GS Boxers 04-16-2015, 04:19 AM
Replies: 15
Views: 698
Posted By roger 04 rt
Service and prices are great at BeemerBoneyard...

Service and prices are great at BeemerBoneyard too and I think they give and ADVrider discount.
Forum: GS Boxers 04-13-2015, 07:38 AM
Replies: 16
Views: 2,148
Posted By roger 04 rt
Sounds like a good plan. I suggest replacing the...

Sounds like a good plan. I suggest replacing the in-tank vent lines with submersible hose too. I ended up opening the tank 3 times because they weren't addressed correctly by a dealer before I bought...
Forum: GS Boxers 04-11-2015, 10:27 AM
Replies: 23
Views: 1,302
Posted By roger 04 rt
Why wouldn't the CG shift down if you rode with...

Why wouldn't the CG shift down if you rode with pressure on the foot pegs? Do GS riders actually sit on the seat? :wink:
Forum: GS Boxers 04-11-2015, 02:59 AM
Replies: 5
Views: 342
Posted By roger 04 rt
Joerocket, There are check-valves on both ends of...

Joerocket, There are check-valves on both ends of the Quick Disconnects. No fuel should flow no matter which line you removed. If fuel is coming from the return line on the tank end, that means the...
Forum: GS Boxers 04-10-2015, 07:03 PM
Replies: 23
Views: 1,302
Posted By roger 04 rt
Greg, Completely clear now, on both points. That...

Greg, Completely clear now, on both points. That diagram looks obvious once you've drawn it but I couldn't come up with it while staring at the original paper. The divide by zero explanation makes...
Forum: GS Boxers 04-09-2015, 07:51 PM
Replies: 23
Views: 1,302
Posted By roger 04 rt
Hi Dr. Greg, That's a good piece of work. You...

Hi Dr. Greg,
That's a good piece of work. You paid even more attention in geometry and trig than me. Well done.

I had problems easily seeing one equation, and want to ask you about one statement....
Forum: GS Boxers 04-09-2015, 04:10 AM
Replies: 5
Views: 349
Posted By roger 04 rt
Yours didn't have the Wideband O2 option did it?...

Yours didn't have the Wideband O2 option did it? If he has it and ends up wanting to remove it, he needs a new stock O2 sensor.

If he has the unit with Wideband, it can be programmed simply to be...
Forum: GS Boxers 04-09-2015, 04:04 AM
Replies: 15
Views: 698
Posted By roger 04 rt
This is the most likely reason, the other thing...

This is the most likely reason, the other thing that happens it that the cover over the planetary gears inside the starter motor falls on the the armature of the motor. It arcs to the case and...
Forum: GS Boxers 04-09-2015, 03:57 AM
Replies: 5
Views: 349
Posted By roger 04 rt
It may be a PC that has the stock O2 sensor...

It may be a PC that has the stock O2 sensor unplugged or it may have a Wideband O2 sensor. What you have to do varies. If it has the Wideband sensor I recommend you keep it. I'll explain why later.
...
Forum: GS Boxers 04-09-2015, 03:49 AM
Replies: 5
Views: 403
Posted By roger 04 rt
There are lots of possibilities. --when the...

There are lots of possibilities.

--when the key is first turned on do you hear the pump run?
--when the key is on does the gas gauge register?

Have him try sitting on bike, side stand up,...
Forum: Vendors 04-04-2015, 04:39 AM
Replies: 1,440
Views: 184,046
Posted By roger 04 rt
The AF-XIED draws no current with the key off and...

The AF-XIED draws no current with the key off and only a little when running. How did you determine that there's a drain on your battery?

It looks like you've connected it to ground at the...
Forum: GS Boxers 04-03-2015, 07:24 PM
Replies: 16
Views: 1,105
Posted By roger 04 rt
Looking at the GS-911 log, with the steppers very...

Looking at the GS-911 log, with the steppers very unbalanced, it looks like you have an air leak on the left side. Check and see if your tank vent hose is cracked or missing. Try plugging the left...
Forum: Parallel Universe 04-02-2015, 07:28 AM
Replies: 526
Views: 43,044
Posted By roger 04 rt
Hey Erling, You didn't miss a thing. The first...

Hey Erling, You didn't miss a thing. The first paragraph isn't talking about the LC-1/2 or AF-XIED, it's only referring to what happens as throttle angle widens and RPM increases. ;)
Forum: Parallel Universe 04-02-2015, 04:06 AM
Replies: 526
Views: 43,044
Posted By roger 04 rt
I could go and dig out some GS-911 data on the...

I could go and dig out some GS-911 data on the closed/open loop question but the point at which the BMSK changes over is based on throttle angle and TPS combined. Above half throttle, or above 5-6000...
Forum: GS Boxers 03-30-2015, 03:50 AM
Replies: 16
Views: 1,105
Posted By roger 04 rt
So if you hold the throttle open, you can keep it...

So if you hold the throttle open, you can keep it running? If that's the case, can you slightly reduce the throttle but hold it open a little and keep it running? If you can, what is the lowest rpm...
Forum: GS Boxers 03-30-2015, 03:43 AM
Replies: 33
Views: 2,361
Posted By roger 04 rt
Glad the OP found the problem but we've all done...

Glad the OP found the problem but we've all done similar things. Great the he let us know.

+1 to the over designed fuel system comment above. The fuel pump can pump 3X the amount of fuel needed by...
Forum: GS Boxers 03-22-2015, 10:20 AM
Replies: 28
Views: 1,953
Posted By roger 04 rt
Since there is a turn-on ramp for the injector as...

Since there is a turn-on ramp for the injector as well as a shutoff ramp it would be interesting to know the fuel-flow results at 3600 rpm (60 Hz, about 17 mS), at pulse widths between 2-4 mS.
...
Forum: GS Boxers 03-22-2015, 05:55 AM
Replies: 28
Views: 1,953
Posted By roger 04 rt
The 7% mismatch you corrected is huge. In closed...

The 7% mismatch you corrected is huge. In closed loop, one cylinder was running at 14.1:1 and the other at 15.3:1, and the fueling was similarly mismatch in all modes of fueling. One cylinder was...
Forum: GS Boxers 03-17-2015, 04:35 AM
Replies: 18
Views: 6,244
Posted By roger 04 rt
+1. 10V or less is a battery at 0% state of...

+1. 10V or less is a battery at 0% state of charge.

This is in agreement with the advice that Odyssey gives for recharging its batteries. You may just get enough charge in an hour to get it going....
Forum: Vendors 03-16-2015, 08:26 PM
Replies: 1,440
Views: 184,046
Posted By roger 04 rt
The fueling when cold may improve. Give it time....

The fueling when cold may improve. Give it time. Let us know. Try setting 8 after several tanks of gas.
Forum: Vendors 03-16-2015, 12:33 PM
Replies: 1,440
Views: 184,046
Posted By roger 04 rt
Hi Merlin32, The simple answer is that during...

Hi Merlin32,
The simple answer is that during warm-up your bike is Open Loop. It fuels based on: RPM, TPS angle, Oil Temp, Air Temp, Battery Voltage and Barometric pressure. The 1150 stays Open Loop...
Forum: Thumpers 03-06-2015, 10:03 AM
Replies: 465
Views: 39,530
Posted By roger 04 rt
Geeza also ran multiple WOT test runs in 4th gear...

Geeza also ran multiple WOT test runs in 4th gear on his TR650. The procedure he used was:

--Stabilize and cruise at 2000 RPM in 4th gear.
--Fully open the throttle until 6000 RPM is reached.
...
Forum: Thumpers 03-06-2015, 09:12 AM
Replies: 465
Views: 39,530
Posted By roger 04 rt
For those of you who are interested how the TR650...

For those of you who are interested how the TR650 is fueled during a Cold Start (meaning the bike sat overnight), here is a plot made from data supplied by Geeza. You can see the various phases of...
Forum: Thumpers 03-04-2015, 07:37 PM
Replies: 465
Views: 39,530
Posted By roger 04 rt
Puke This is a complicated answer with no way to make...

This is a complicated answer with no way to make it simple. Immediately after an ECU reset, the open loop fueling in the cruise area is about 14.7:1 and richer than that at wide throttle angles. The...
Forum: GS Boxers 03-04-2015, 07:18 PM
Replies: 7
Views: 366
Posted By roger 04 rt
If you open the QD then connect a hose from the...

If you open the QD then connect a hose from the fuel distributor return (top line) into a collection tank you should get 2 liters per minute at idle, which is the amount returning to the tank. If...
Forum: Thumpers 03-04-2015, 08:38 AM
Replies: 465
Views: 39,530
Posted By roger 04 rt
The only way to get the lambda (O2) sensor signal...

The only way to get the lambda (O2) sensor signal to be moved to th rich side, is to get it to switch states at a non-stock value of lambda. This is what the LC-2 and AF-XIED do. There is no voltage...
Forum: GS Boxers 03-04-2015, 06:01 AM
Replies: 79
Views: 4,571
Posted By roger 04 rt
Dave, I'm neutral on the filter-externalization...

Dave,
I'm neutral on the filter-externalization idea, do it if you like it. Personally I'm not in favor of adding another foot or two of fuel hose in the tight space outside the tank.

It doesn't...
Forum: GS Boxers 02-28-2015, 09:36 AM
Replies: 79
Views: 4,571
Posted By roger 04 rt
Looking at the condition of my in-tank hoses at 8...

Looking at the condition of my in-tank hoses at 8 years, when they failed, I don't think I'll go more than 5 or so before I replace them.
Forum: GS Boxers 02-28-2015, 04:48 AM
Replies: 79
Views: 4,571
Posted By roger 04 rt
It's not a "zip tie fix" it's a safety-backup. ...

It's not a "zip tie fix" it's a safety-backup.

The point is that even if you make a proper repair or renewal of an Oilhead's in-tank hoses, the consequences of a burst failure are serious. Because...
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