Kingsize15

ok thank you and where the main jet is at the bottom of the carb when you take it out a kittke metal tube falls out i had always put it back in the same way but the last time i changed my jet (since the bike hasnt been running) i think i put it in the other way round thinner end going in first would this have affecting myped with the petrol spitting out and it not starting?? im going to turn it back round the next chance i get but its been snowing here for the whole of today so i havent got a chance yet

yes my engine floods everytime i try to start it

its it is sparking and yeas its clear

hello i have a Yamaha Jog RR 50cc 2-Stroke Scooter my problem is my carb is spitting out petrol from a hold on the air intake side as you look at it http://www.scooternations.com/showthread.php?112-Whats-where-on-a-50cc-Scooter-Carb - if you scroll down half way to the last picture just under the aarow that says tappered throttel needle the hole thats where the petrol is spitting out into my air box/ air filter how i noticed: i was fixing my ped because 2 weeks before this is just stopped running as i was riding along, so i rang adrinalin pedstop and yamaha and another scooter garage and they all said change the barrel, piston and piston rings so i did but no change yes there was a scratch down the side of the piston which could have stoped my ped from working but there was no change so i rang adrenalin again and they said put the standard box air filter back on and down the main jet to a 68 so i have but then i noticed my box air filter was filling up with petrol as i was turning my ped over so this should obviously not happed can anyone help me pleasee..... infomation my may need to know: upgrades before my ped stoped running - high speed veriator kit with 6.9g rollers, reinforced kevlar belt, K&N style air filter (not real K&N), 84 main jet, tecnigas rs exhaust, race clutch with 21kg tough spring and matching clutch springs and derestricted... since my ped stoped working - i have changed the following: barrel, piston, piston rings and all top end gaskets i have also down the main jet to a 68 and put the standard box airfilter back on my carb is a gurtener 12 19mm with electronic choke my ped sont have a fuel tap when i bought the ped new it didnt come with 1 fitted so i must have a vacume carb and my ped wont start can anyone please help i will do my best answering any questions thanks you, Jeremy

yeah the arrow on the piston is pointing to the exhaust and its when im turning the engine over trying to start it and the yeah the reed valves looked fine when i had a look and my ped dont have a fuel tap i have a cacume carb and the float where the main jet is is fine me and my uncle a mechanic both looked at it and theres nothing wrong with that but neither of us can understand why its spitting petrol put. im thinking investing in a new carb is the best option but i would rather get this one working

http://www.scooternations.com/showthread.php?112-Whats-where-on-a-50cc-Scooter-Carb on this webside go down about half way to the last picture and its under the arrow that says tapered throttel needle

and with the old piston there was a big scratch going down the side if the piston

when your looking at the carb from the air intake where the air filter will attach there is the main hole which you measure to see what mm carb you have well on ther edge as your looking at it there are 2 smaller holes and the hole closest to the center at the bottom itshard to explain. and we i have cleaned the carb but it hasent changed nothing at all. but it filled my sports air filter with petrol and i know it shouldnt do that. one ofmy mates said it might be the electronic chock i have which came standard on my ped when i bought it last june brand new so i dont see why that would be failing already...........

ok thank you

sorry that was my step brother he knows nothing everything you see on there i had to tell him maybe this will sound abit clearer........... (he has a thing about putting piston rings on upside down) i have a yamaha jog 50cc 2011 2 stroke my problem is there is petrol squerting out the hole closes to the center on the inside as you look at it from where the air filter/air box would go i just wondered if anyone would know anything that would sort of help this problem any ideas and solutions would be great thanks. my carb is a gurtener 12 19mm standard.. upgrades when the problem happened: tecnigas rs exhaust high speed variator kit 78 main jet K&N STYLE!! air filter (not acc K&N he dosent seem to understand that) 21kg tough spring (goes behind the clutch) matching clutch springs racing clutch 6.9g rollers what happened: well i was riding my ped and there was a change in note coming from the engine so i pulled over and my ped just died and when ever i tryed to start it it would turn over but when i put some throttle on to help it start it just bogged down and would not start i told adrenalin pedstop, yamaha and a schootor company in central london and they all say change the barrel, piston and piston rings so i did and there was no change................. since the problem happeded i changed the barrel, piston, piston rings and all top end gaskets to eliminate that. there is a spark from the spark plug and my ped sound like it wants to start. the petrol is going into the carb and into the piston head know this because it keeps flooding... and i have put the standard air box back on and down jetted my main jet to a 68 which was reccomended my adrenalin pedstop because of my exhaust, veriator kit and rollers but now i hae just noticed that petrol is spitting out or the hole closest to the center or the bottom as you look at it from the air intake side anything would be a help thank you. Jeremy p.s my step brothers 600cc bandit is rubbish, a yamaha r1 would piss over it a look a hell of alot better

if anyone can help this woud be great. thanks i have a jog rr and i have been upgrading it i have put a technigas rs exhaust on the bike i then put a high speed vairyator kit with 6.9gram rollers on racing clutch with 21kg tought spring an matching clutch spring a KanN air filter and 78jet on the bike wilst i used my bike it stopped running i was told i had blown my piston so i replaced it with a new barrel, piston an rings all with new gaskets once the bike was back together it still didnt start but when it was turning over the hole at the bottom of the air intake was spitting out petrol. does anyone know what is happening with my bike or how to solve thease problems. any ideas will help many thanks jeremy yes as my brother in law said this is what happens when you upgrade a hairdryer he has a bandit but he has no idea what is wrong