ok....let`s try another angle !

[ade the blade]

years and years ago i ran a cb 750 f1 honda bought it brand new!!!£1100 on the road!!!now ile try and get this over to you before i croak thru old age!!at approx  33000 miles i got the same prob as you,.....and after alot of money exchanged hands with the stealer" it was fialy down to ...weak diaphrams 2 where very pappy !! no holes just weak?.... i replaced the lott anyway and it ran mint after that?......but i will warn you they not cheap?.....going bk to 1976....yes that old :'( cost me over £100 then!!!! so in a way i do hope its not them?.....but you never know???????? clive

cheers clive, will take that on board.....hopefully not, but food for thought nonetheless. 1976? i think my old nan told me about that drought year a little while back :lol :lol :lol :lol :lol

[ade the blade]

[quote author=CRH link=topic=3071.msg24446#msg24446 date=1337365937]
years and years ago i ran a cb 750 f1 honda bought it brand new!!!£1100 on the road!!!now ile try and get this over to you before i croak thru old age!!at approx  33000 miles i got the same prob as you,.....and after alot of money exchanged hands with the stealer" it was fialy down to ...weak diaphrams 2 where very pappy !! no holes just weak?.... i replaced the lott anyway and it ran mint after that?......but i will warn you they not cheap?.....going bk to 1976....yes that old :'( cost me over £100 then!!!! so in a way i do hope its not them?.....but you never know???????? clive

thats got me thinking about my bike now...didnt replace the diaphrams as the ones in the secondhand carbs felt a bit stiff and were a little mis-shaped,my origanal ones very very flexable  :rolleyes ....cheers clive
[/quote]
access....your flexible friend !! sorry i started this thread now, it`s getting a bit pervy now. wheres my grotty old mac? :lol :lol :lol

[CRH]

she  didnt visit malock bath did she????? :rolleyes ...remember me to her if she did?????

[ade the blade]

she  didnt visit malock bath did she????? :rolleyes ...remember me to her if she did?????

hello granddad :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin

[CRH]

  :rolleyes ....i  der BLOOD!!!!!!!!!!!!!!!!!!!!!!!!!! :lol

[ade the blade]

:rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin  bedtime !!!!!!!!!!!!!!!!!!!!!!

[CRH]

ok!! good luck with it? .....why dont you try pipe strait from tank to carbs??? no fuel pumps in my era!!!!

[ade the blade]

ok!! good luck with it? .....why dont you try pipe strait from tank to carbs??? no fuel pumps in my era!!!!

tried that matey. bit hit and miss. seemed to get a load of airlocks constantly in the fuel line. yep give me gravity feed anyday . see what tomorrow brings. thanks all. Ade

[clayt74]

ok, just checked what my fuel pump does;
at idle = 1 pulse every 5 secs (depending on how you timed it it could be considered 2 pulses in 5-6 sec duration)?
at 5K = 6 pulses (counted 3 times, counted 7 pulses twice)


not sure if that's gonna help with the comparisons you are trying to do?


good luck mate

[110%]

At idle mine pumps once every 4.3 seconds taken as an average from 1 minute of counting.
If I held it at 5000rpm for one minute my next door neighbour would most probably come around and stick a kitchen knife up my arse.

I doubt my results would be affected by the fact that my downpipes are riddled with holes again (which does affect the performance of the engine but probably not the fuel filter timings) but thought I would mention it in the interests of fair science.

I'm guessing for a true experiment you would have needed the results a 5000rpm as well so I'm not sure how helpful I've been - although if you lived in London I would be more than willing to lend you my carbs for an afternoon.

[CRH]

ade, did you have a look at your diaphrams ? spoke to a motorcycle mech i know? and that was the second thing that come to his head!! the first being?....inlet rubbers/ perished/ loose.? clive.

[ade the blade]

ade, did you have a look at your diaphrams ? spoke to a motorcycle mech i know? and that was the second thing that come to his head!! the first being?....inlet rubbers/ perished/ loose.? clive.

mate its been a right old weekend what with this and that. aint been near the bike at all. but will be re-checking everything again at some point during this week. cheers for asking

[CRH]

ok, if you do find you,v got problem with any of the diaphrams? ive got 1 that you can have if needed? clive.

[red98]

swoping the ecu and removing the filter made no difference to my bike so i put filter and ecu back on and tryed the pulsing test again,sane results as before.......idle....2.5 pulses...........5000....7 pulses.
have you had chance to spend so time on the fazer ?

[red98]

any progress ade 

[ade the blade]

well i`ve been prescribed anusol by the quack and told to stop scratching and to make an appointment in a fortnight.........so fingers crossed eh !!

[CRH]

ade, did you get chance to look at yours today?

[CRH]

look in for sale and wanted ade?...braking a fazer?...you wanted a fuel pump didnt you?