Ex. Club Member
Cheers buddy (Y)
i have a 4 wire sensor, but dint know the wiring, i think it has 3 white wires and 1 black, what wires does yours have?curtis
mine is just a narrowband setup, so it only gives a small window of air/fuel ratio (about 14.2:1 to 15.2:1 apparently) but it,s still usefull (albeit limited).
i think the 2 outer wires on the sensor are for 12 volts in, and pre-heater, and the middle wire outputs a voltage of 0 to 1v, (0.5v being 14.7:1 mixture).
a wideband sensor has a much wider range, but i think they,re a few bob tho
i think the vv carbs are designed so that when you hit the throttle, the butterfly is wide open but the slide is delayed, which creates a high vacuum around the jet, adding extra fuel (acceleration enrichment).Im pretty sure they are yes, as you can't turn them upside down with fuel in them otherwise the diaphram swells
exacty what mine did, if you flattened the throttle at say 2.5k not alot happened, actually it worked better if you didnt go the full way dowm, but when you reach 4k it took off then it was change gear time, same in a ll 4 gears i had at the time, loloo i'll have to have a play about with them..
Its basically a flatspot at low revs, but soon as its picked up the acceleration is really good, if not better then the webers
the webers were good for the whole rev range
FFS, no wonder you,ve got no response till 4000 .Nope...but im looking into getting one...
lol calm down frank, i didnt have one either buts that cos i couldnt fit one in, my next set will have one tho, but will try the masking tape method also.FFS, no wonder you,ve got no response till 4000 .
i usually put some 2" masking tape over the bellmouth,s, then punch a 20mm hole in the middle (you should get instant throttle response then), then gradually open the holes up, to give some idea of jet size, needle setting, filter size and diaphram spring etc
Yep, pretty much it, nothing really happens at 2.5-3K but soon as 4k comes along its power all the way...lol
I do miss the webers now
But if i get the timing sorted and the idle etc done it should be ok
indeed i agree with you there dave, the webbers dont give alot more HP but they have a better power delivery and power curve IMO plus they are easier to tune and live with day to dayBeeing someone who has also now tried both the webers and bike carbs,, i agree with speedle, the webers are better, but they havent blown me away in comparison. pound for pound the bike carbs are prob better value, and if set up right, i think they could easily give the webers a run for there money.
not having tried the webbers i cant base my opinion on complete fact, but i never found my bike carbs hard to live with day to day.indeed i agree with you there dave, the webbers dont give alot more HP but they have a better power delivery and power curve IMO plus they are easier to tune and live with day to day
about time we had some updated pics of your project dave!
Yeah, sometimes it starts on the first turn, and sometimes you need a little throttle...but thats usually once they have been running for a whilei never had to use the manual chock on them carbs and never had problems starting them, might be a different story tho when we hit january! as for mpg i cant accuratly say yet as the webers where jetted and tuned to curtis's ma12, i wont get a true picture of mpg untill their tuned to my engine and had some more use. but theres no way there worse than the bike carbs. 35mpg is prob the max on the bike carbs.
Yes i agree, i would now recommend anyone with a standard k10 to get uprated shocks and lowering springs...Does improve it a whole lot!!mate im lovin my new lower stiffer k10,its like another car,my wheels go off to be refurbed (black steelies)next week then my brand new yokahama adrives go on! IM LOVIN IT!