sj wont run

[eugene]

hi my wife a a sj410 for offroading the thing is i cant get it to run properly it has a speed boat petrol tank in it and the standard one removed the petrol return pipe is blocked of ive put new dizzy cap rotor arm plugs and leads on it and new air filter it start straight away and when choke is fully out revs loads screams infact drop the choke off to half way and try to rev then it dyes any advice welcome its doing my head in
thanks
eugene

[4xmike]

Hi
Not sure if this is it but there is a pump on the bottom of the carb that adds fuel when you rev it,if used off road the pump arm sticks on the shaft & causes poor runnning when you rev it,its worth a look ,just see if the arm moves up & down easily
4xmike

[generation-x]

hi can i ask why you have blocked the return pipe?

id quess its over fueling now
might be worth unblockin the return into a seperate can and see wot it runs like if it does run


Simon

[eugene]

thanks 4xmike will try that at the week end and simon it was already blocked of because it have a speed boat take like a banger tank in it have tryed what you said but still the same

[4xmike]

Hi
me again !!
I had a 410 that I bought & it was fitted with a boat tank when I got it & it only had a feed to the carb & no return & that alway ran ok,so I dont think its that
4xmike

[eugene]

cheers 4xmike il keep playing

[generation-x]

hi m8
reading your 1st post you are sayin it will run with full choke? but wont even if only half closed?

Simon

[eugene]

on half choke it runs then when you put foot down it dies

[generation-x]

sounds like the jet needle is chuffed m8y have you tried another carb on the engine?

simon

[digger]

SET FIRE TO IT YOU OLD CU*T

[generation-x]

also does it have a snorkle fitted ? if so wot sort? as also sounds like to much air gettin into the carb and killing it

Simon

[eugene]

thanks scott for the input and it has a snorkel on it well a henry hovver hose that was on it when i got it il try blocking it off

[sam yelland]

let me know how that carb i gave you goes

[eugene]

will do mate  :D