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KeLeYTiS Group: Members Posts: 50 Joined: Jan. 2006 Posted: Nov. 27 2008,16:51 Hi I have a 3xv and want to make the following questions 1)Does the bike work with no battery ? Because i have cleaned everything and have no spark ! I ordered a new one but i dont know if thats the real problem 2)The bike has to fire up for about 3 years , so I cleaned the carbs,changed oil and filters but i dont remember which carb goes on the lower cylinder and which on the upper Does the one that inside his body has 2 metal sheets (like reeds ) goes on the lower cylinder ? Sorry for my english Thanks Back to top

Warwickb Group: Members Posts: 1911 Joined: Sep. 2003 Posted: Nov. 27 2008,18:27 Bike should start without a battery, but it's probably not a good idea to run it like that as it may damage your electrics. Yes, the carb with the fuel baffle plates goes on the lower cylinder. Good luck Wb -------------- A garage overflowing with old stinkers... Back to top

KeLeYTiS Group: Members Posts: 50 Joined: Jan. 2006 Posted: Nov. 27 2008,18:41 Hi thanks I just put a new battery on and it fired up Problem is one cylinder works the other doesnt, the lower one has spark but it doesnt work .... Hmmmm Iam guessing the carb needs cleaning again or something ? Back to top

Warwickb Group: Members Posts: 1911 Joined: Sep. 2003 Posted: Nov. 27 2008,20:38 Yes, sounds like a carb problem. Check the choke and pilot circuits are OK- the pilot jet lives under the plastic dipper tube which just pulls out to reveal the jet.  It would also be a good idea to chenck that the little filter that sits in the carb fuel inlet stub isn't blocked and starving the carb of fuel. Those seem to be the most common carb problems, but sometimes poor adjustment of the tickover screw on the Throttle Position Sensor unit can be a problem too. Air screw should be around 1.5 turns out or so. -------------- A garage overflowing with old stinkers... Back to top

jools Group: Members Posts: 1221 Joined: Oct. 2005 Posted: Nov. 27 2008,23:12 Just as a heads up the carb with the TPS unit goes on the bottom cylinder get the carbs ultra sonically cleaned if possible. -------------- "The only thing worse than being talked about is not being talked about...." oscar Wilde Back to top

skinuthbilly Group: Members Posts: 209 Joined: April 2007 Posted: Nov. 28 2008,19:37 if my bike's been stood for a few days, it always takes a little while for the lower cylinder to kick into life when cold,even with the fuel tap on prime.carbs have been rebuilt so many times its feels like i have some kind of psychic connection with them!! or is that the silkolene fumes?  wats ultrasonic cleaning anyway? is it cheaper or more effective than prodding your jets and airways with a bit of wire? pulling a strand from a wire brush does the trick for me... btw, f**cking chav neighbour's just started his little nsr 50 up,ying ying yiiiiing!!!! just wait till the 3XV crackles into life my boy!!   Back to top

wullie3XV9 Wullie3XV9 Group: Members Posts: 293 Joined: June 2008 Posted: Nov. 28 2008,21:57 Hi Ian, where 'ave you been hiding lately ? We haven't heard from you for a while. How are you & the 3XV ? Ultrasonic cleaning involves immersing components in a water/cleaning agent solution & subjecting the fluid to high frequency sound, which makes the fluid vibrate, (& heat up !!), and cleans out stubborn debris/ deposits. I work on light piston engined aircraft, & we use an ultrasonic bath for cleaning fuel injector nozzles & inline micronic fuel filters, (it's also used on oil system micronic oil/fuel filters on jet aircraft as well). Don't you just hate spotty youths, annoying every one with their all noise, no go "Niffty Fifties". They give us proper bikers a bad name !!                                 Regards, Wullie.   -------------- Just when I'm about to make ends meet, someone moves the ends !! Back to top

jools Group: Members Posts: 1221 Joined: Oct. 2005 Posted: Nov. 28 2008,22:03 Aah Wullie you just answered a question I had (not 3xv related) I have a small ultrasonic cleaner used for drafting pens - about 150mm diameter I use now for bike stuff so its good that i can stick my diesel injectors in there from the 4WD beast ! Ian check you autolube pump is not leaking - I had a problem that the oil was flowing along the oil line into the bottom reed intake due to a worn pump seal. That could be worth checking. After its been standing for a few days pull the bottom car off, it will be obvious if it is. -------------- "The only thing worse than being talked about is not being talked about...." oscar Wilde Back to top

wullie3XV9 Wullie3XV9 Group: Members Posts: 293 Joined: June 2008 Posted: Nov. 28 2008,22:43 Glad to be of service Jools. Just to clear something up, technically speaking, what I SHOULD have said was fuel metering nozzles. They're just basically glorified carb main jets, but are about 1 inch long !!, that are screwed into the inlet port of the cyl. heads. They have a precision drilled hole, which delivers the fuel at however many millilitres of fuel per minute, at 20 psi fuel pump pressure. I work on Lycoming 4 stroke, air cooled, 360 cubic inch, flat four "Boxer" aero engines, that have a crude butterfly controled, differential air pressure metered fuel injection system, with a manualy controlled, (by the pilot), mixture adjustment, ( to allow for the air density decreasing with altitude ). Hope I'm making sense !!   -------------- Just when I'm about to make ends meet, someone moves the ends !! Back to top

jools Group: Members Posts: 1221 Joined: Oct. 2005 Posted: Nov. 29 2008,10:51 Yup I used to work at Rolls Royce, Derby. Speys, adours, RB211's, RB199,s even the odd derwent, dart, trent and avon and very very rarely a merlin would appear ! I think we Hijacked this thread................sorry KeLeytis ! -------------- "The only thing worse than being talked about is not being talked about...." oscar Wilde Back to top

wullie3XV9 Wullie3XV9 Group: Members Posts: 293 Joined: June 2008 Posted: Nov. 30 2008,15:04 Ah, the sound of a R.R. V-12 MERLIN, lovely !! Makes the hairs on the back of my neck stand on end.     -------------- Just when I'm about to make ends meet, someone moves the ends !! Back to top

skinuthbilly Group: Members Posts: 209 Joined: April 2007 Posted: Dec. 01 2008,00:34 i live just a few miles from east kirkby,where they regularly strike up(but not fly)a fully working lanc' luv hearing those merlins being revved up!! the 3xv is fine,hopefully take it out sometime over the xmas break,if it aint snowing!!   Back to top

KeLeYTiS Group: Members Posts: 50 Joined: Jan. 2006 Posted: Dec. 02 2008,22:25 Iam really mad for hijacking this thread I can forgive u if you tell me the float levels of the carbs         thanks guys Back to top

skinuthbilly Group: Members Posts: 209 Joined: April 2007 Posted: Dec. 03 2008,01:11 i believe its between 15-17 mm,i've set mine to 17 mm,and it runs absolutely fine, Ian   Back to top

KeLeYTiS Group: Members Posts: 50 Joined: Jan. 2006 Posted: Dec. 03 2008,15:19 The left carb is 17 but it keeps leaking I will put it on 15-16 The other problem is that the bike fires up easily and everything is fine on idle and until 3000 rpm Then the left cylinder turns off Hmmm maybe its electric problem ? Back to top

Warwickb Group: Members Posts: 1911 Joined: Sep. 2003 Posted: Dec. 03 2008,16:51 Sounds like it could be flooding on the left cyl due to a sticking or dirty float valve. Maybe try dismantling and cleaning it well while you are re-setting the float height? It would also be a good idea to remove and clean the little filter in the carburettor fuel intake stub at the same time too. -------------- A garage overflowing with old stinkers... Back to top

jools Group: Members Posts: 1221 Joined: Oct. 2005 Posted: Dec. 04 2008,03:25 replace the float valves - its the easiest option. They used to be available cheap off ebay.......... -------------- "The only thing worse than being talked about is not being talked about...." oscar Wilde Back to top

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