RVFR

That's a great question Since getting a NEW TPS was basically out of the question... luckily Darlly had one to give a try, whats ya know it worked, I did have to dial it in to get it right, but yea, for now it works like its supposed too. On that note, now that this adventure is behind me, I have this very fine gem of a 5thgen posted on FB marketplace. If I may, here is the link https://www.facebook.com/marketplace/item/642239281834680/

UP Date: Wow! What a Go figure. It turns out I had a partly like a very little lack of communication with the ECU via the TPS being it was only the very first part of the throttle not telling the ECU what to do with the #4 injector. Doh!, it was telling me it was working, yet only partly I found out. Anywho, all is like it should be. Runs great now, but what a headscratcher. Side note: if anyone is looking for a very sharp 5th-generation low miles, very well taken care of with nice options. I should have this one available sooner than later. Though I am in the PNW of the USA, so there's that hurdle.

As the tile asks I'm working on a 5th gen that's driving me nuts figuring out this #4 cylinder not getting fuel thing until 2800 rpms all that has been done through the course of finding the culprit has me totally at witts end. I'm now waiting to hear back if the second injector I installed could have been bad. I mean back-to-back injectors, what is the odds? then after working over this TB being a RPITA! I am thinking of swapping out to the 6th gens knowing that those fuel rails can be removed separately, whereas the 5th has it you have to pull the whole TB out to get to the mounting allens holding the rail $#@!

Up date: after a bit of fiddling I was able to hook up a separate fuel pump & fuel lines to the injector in question on #4 and had it wired in to the VFRs circuit. Once running I turn on the fuel pump and, Wa-la there is a nice spray of fuel. The only thing puzzling me left to do now is pull the fuel rail out to see whats going on. How odd, could it be, all though the fuel pump test showed me 70 psi, that's not enough? When running above 2800 it makes more psi? The Shop manual says the injectors need or run at 43 psi. I would think if it runs great above 2800, it shoud be working fine below 2800.. Totally Weird. At least this test takes away the VFRs FI circuitry.

Yes that's whats throwing me for a loop. Unless.. it's like what I have seen and heard of like when a coil lead is lose or barely on where as the rpms increase so does the the energy. In this case as the rpms rise the voltage gets to a point where it can jump the connection. But in this case I'm pretty sure the 12v with the injector is a constant and not a lot needed in a amp load here, which begs the question of, WT...... 😉 Yep, I'm going to do that as I just happen to have 4 extra Injectors laying around, just ordered up a little fuel pump, so we will see what comes of that.

Thanks for the Noid thing. That gets me thinking if a digital multi meter may work. Now I'm gong to throw on a an extra injector to see how it actually acts. 😉

Hi guys Its been awhile since the last conversation. Yet this time it is a crazy one, I''ll do my best to keep it condensed. Last year I got my hands on a very clean low millage VFR that I knew of from a gentlemen that took care of it it was very well less the last couple years where he hadn't time for riding so it sat. Next he decided to sell the beast again I knew what this one was about so made him an offer thinking its going to need the basics to get it down the road. He was getting ready to fire it up and get back into it, but things went in a different direction. then I didn't hear back for a few moths then here he was coming full circle and took my offer Nice 😉 so I thought. Ok, here we go once it was in my garage the normal fluid changes, plus battery and the complete going over al look good Now it time take it for a spin fired right off so typical Honda 😉 then once out it acted like it was down on power compared to my 98, Then bing GOat 2800 rpms it took off, all was good.... hahah Nope, any time you go below 2800, it kinda goes flat so back to the shop I went. Knowing these critters like i do and know this particular VFR told me since it sat for awhile it could be a fuel injector so into the gunnels we go, while it was opened up, I swapped outall 4 them , button up, lets try this again. PUFF!! only to have the same result. Head -a -scratching had me use a temp gun on the exhausts, yep Number 4 was the culprit, not firing off util the 2800 mark. So the next was done one at a time. Fuel pump, check pressure checked out along with new fuel filter, check, still does it ECU swap still does it ignition coils with leads and boot along with new plugs.. still does it FPR swap.. still does it. Here's the weird part, it starts and idles great hard tell its not running on all four, I even did the starter vale alignment, it still does the same after 2800 it's great. I decided to let it act this way for a couple tanks, no change. Next I modded out the air box so I could get it running less air box to check injectors with a tester of sorts ,that told me as best one could, $#@! those bugger are buried. that they are working, Yet ??? So I got a syringe and squirted fuel in # 4 while running. Wa-La the exhaust temp showed up, so yea its not getting fuel in there below 2800 Hmm? A double checking that the fuel lines are good,which they are, so now the question is, is it the Injector wire harness? or maybe there's a pulse input thing with the injector mode that isn't working? if so where ? Thanks for the Listening, If this VFR wasn't so sharp, I'd part it all out.

Nice find, thanks for sharing that, now to look for Jama 😉

Thanks, cool Ok, here is the site that was said to have them, but this is from 6 years ago, so who knows, but sure would be sweat to see if they did. It is a header collector for the 85-86 VF1000r I have no part# Yet here's a photo I grabbed from off the VFRW site. https://www.boonstramotoren.nl/en

That's what it says in the VFRW thread, then once at their site I need to understand Dutch. or fnd one that does 😉

It's been a while, though busy, I'm not too much out of the loop. Now the fun is, I just landed a nice original owner 86 VF1000r to tinker with that has 60k on it. It has the lower faring but the previous owner didn't care for it and it also ran cooler so he says, Ok but it's going back on once I get all the details figured out as it runs rough. So first thing, dive into the Carbs, then suspension, possible brakes then onto upgrades, which may turn into tires, wheels and exhaust. As I spotted some interesting in that if they are to be. This is going to be fun. Yes!! Might have to wheel in Capt. into this since he's sorta in the neighborhood 😉

So sad and crazy to think we'll never see Lance again, physically. Yet his spirit is felt in the wind.

Interesting find this with a different bleeder & line hook up https://www.ebay.com/itm/Brembo-Black-P32-Rear-Brake-Caliper-P32F-Ducati-Buell-Grom-Honda-Motorcycle-916/324245835939?hash=item4b7e8ed0a3:g:n84AAOSwDZJbDK-C

Just keeping an eye on this 😉

Oo, I can see this on my Viffer, Ola-la. Guess I best start looking for a caliber. Curious question before hand, Does Nissin have a caliber that works for this set up? Asking as that's what's up front 😉