Attempted VF1000F2 resurrection

just remove top of airbox and photo intake side.

 

Hi

I have a new set of plugs and leads on the bike, you suggest that I follow the cable from the run switch and clean the connectors and the ecu plug and socket, I can manage that, I had to replace the 3 and 6 pin connectors on the rectifier unit, as the previous owner had cut them off and used screw connector blocks


VF1000F2F, in bits

 

Thanks I will try and get that done in the morning, if I don’t manage to find the time I will get it done on Sunday, and post the pictures ASAP


VF1000F2F, in bits

 

and you checked/set proper gap @ .030" ?

 

Hi yes plug gaps checked as I know they get bounced in the boxes quite hard

I will pull the plugs when I get the tank off to see the colours and make sure they are all the same

I have set the air screws at 2.75 turns out, but it still seems to be very rich running

Is in leaner or out?


VF1000F2F, in bits

 

those are not air screws but fuel screws, so out is richer. again, how do you know it's too rich ?

 

From my ST1100 manual, there was a specific test to check for voltage at the ECU, below When that was low, I worked my way back through the connectors to find the cause, in my case it was the red connectior that feeds to the right bar pod where the starter and kill switch are. From the wiring diagram for the VF1000, I think you need to check the black/white wire where it enters the two spark units and check there is battery voltage to the green earth wire.

 

I have been both bike and car mechanic for many years, I might not know this bike very well yet but I can smell a rich engine,

Other parts of me may have failed like my heart, but the nose still works, but I agree a gas analyser would be a better test, and also the exhaust ends have gone black in less than 5 miles, it also starts first time with no choke

 

Thanks for that. I will certainly check that out even if it is just give them a good clean out


VF1000F2F, in bits

 

Ok got the air box off,

Pictures of the intake side





Checked all the slides move and they do


VF1000F2F, in bits

 

OK, do you have compressed air ?? if so, direct a blast into the oval-shaped section and watch to see that all slides move up smartly.

 

Unfortunately no I don’t

Don’t even have power or light where the bike is stored


VF1000F2F, in bits

 

you can try using a length of rubber hose directed from your mouth to the oval section and blow hard like trump making a speech. do each carb and see if slide wants to move up.

 

I will surely have a go at blowing down them and see if they all move the same ISH,
the wife recons I'm full of hot air so should not have too many issues blowing in them.

I did not get the chance to take the plugs out and have check on the colours, but i did rev the bike with the air box off and they all seemed to jump about at the same rate,

The three yellow wires out of the stator were just spades pushed into another set of spade terminals, so I fitted a new 3 way original looking white plastic plug and socket, now the bike keeps blowing the main fuse?

3 yellows to 3 yellows, did not think i could get that wrong..........................

 

So 10 mile ride today, and its getting worse as time goes by, but at least it passed its road worthy test today,

Carbs are coming off again for another clean up

 

VF1000F2F, in bits

 

nice photos !

have u tested compression ?

 

Not had a chance to do anything, got to get the decorating finished before bike time,
As the shutter installers are coming next week and it’s all got to be done by then

But the virtual rev limiter is now down to 4500 rpm, so the carbs will be off tomorrow and taken to the workshop for some TLC again


VF1000F2F, in bits

 

Yeah, looking good.

 

Those Rubber Carb Venturi Tubes shrink with age and leak air in.
I had to do the WinterGreen dunk to expand them back to fit into the seating groove.