Hi I have a question: my speedfight 3 ac 2t, has problem with kickstart and electricstart: the fuel pressure seems off (the fuel go’s up and down). It doesn’t keep the pressure so that the fuel reaches the vacuum pump. I am not sure wether I have placed my vacuum pump in a right spot. It is near the 12v buddyseat cables.

Hi mark where can I get a carb gasket set? I have the same bike and it’s not running it does run takes forever to start once it starts it’s fine just takes 30 mins some days

How long will it last tho???? As i seem to have the same problem and also the garage basically did what you did and my bike lasted 1 journey before dying again/ after spending 240 pounds at the garage?

Love your videos watch them all was hoping that you can help trying to fix a Suzuki burgman 125 a 2002 model getting a ticking noise but no spark have checked starter motor coil and tried the screwdriver across to bypass starter switch still nothing as your a scooter or moped wizard any suggestions thanks for your time and patience

I've found that E5 causes the washing away of engine crankcase sealant around the crank bay area on three 125cc 2 stroke single engines that I've had to re-seal with ethanol resistant Blue Hylomar. Around the crank bay area all the factory RTF or previous rebuild silicone was gone, which was why the engines had started burning their gearbox oil. This is because ethanol dissolves silicone & RTF (original black rubbery factory crankcase sealant).

i use e10 in my 2003 Peugeot vivacity, it’s very similar to the speed fights in terms of engine, I’ve had no issues since I replaced the carb and change my head to 65cc airsal sports kit, but my original 50cc piston rings broke soon after buying it ( only had 8000 miles on it or so) thinking about e10 my have caused that, I also premix all my fuel going into the bike, anyone have any thoughts on this?

2 & 3 star petrol…, those were the days!, and an attendant would often fill the tank for you! (with a smile!) 😂👍

Hello mark another good video I’ve got to admit I’m still worried of rebuilding my aerox so basically the only fuel to premix is super unleaded

Hey mark how are you ? I need an oil pump for my speedfight 4 electric mikuni do you have one ?

i hvae a problem with mine it will run on rich for some time and shut down if i change it a litlle bit more lean doesnt even start i would like some help

Rubber parts can be replaced with vitro parts,e10 can also ruin the crank shaft oil seals if they're not made of vitron.

Hi Mark, I have a vespa Lx 3v 125 2013 plate.. What type of rollers, clutch and exhaust would you recommend? It does about 62mph stock

With the fuel shortage atm i couldn't get E5, had to stick a full tank of E10 in the Car, but ill be using E5 soon as the tank gets low

Hi mark I took my speedfight 3 apart to re spray the body parts on it and I found a pipe which wasn’t connected to anything looks like it’s for air flow as it’s not from the radiator or anything the pipe was hanging down underneath my plastics and was clipped up to just under my seat do you know if it’s for anything important I’m thinking it’s not because the ped should have broken already if it was important it’s just a black pipe with a black box connected to it and on the end it looks like a showerhead end let me know what u think it is as I can’t see it on the owners manual or anything

I don’t know where your base is but can you fix my Gilera runner vx125? I am having puppies with it. Fuelling/starting problems!!

Why do they say "2T" ,I am guessing you are talking about 2 stroke but I am a bit confused, PS I am 56 years old hence I am wondering why its called "2T" very good videos by the way.

Hi Mark could really do with your help. My sons scooter just stopped working I have changed the stator, the regulator/rectifier, new ecu, new ignition coil, new spark plug and the side stand switch but still no spark. There is power in the ignition coil but none when spark plug is inserted. Any ideas welcome xxx

I’ve filled my speed fight 3 50cc (LC) 2010 3 times with the new E10 and it actually runs better, it feels like its got so much more power and climbs big hills at 45MPH it’s used to do 35MPH

If it’s a help to anyone smear a bit of grease on the gasket to help stop ethanol penetrating the gaskets.

Doesnt the fuel pipe sit under the frame so it doesnt get pinched ?

Bit of a subject change how do i stop the clucth on my bike from engaging to early

Actually leaded petrol sold as 2 Star (94 RON), 3 Star (97 RON) & 4 Star (99 RON).

Hi I have speedfight 3 it sparks when u first turn key and then it doesn't spark

Mark could you find out where he got them bolts from and link it below please

Super unleaded is still E5 at the moment,in the old days it was 2 3 and 4 star.

Hi mark i know this is a old video but im really having issues with my speedfight 3 50 lc ive got the idle screw all the way in and throttle cable screwd on the last threads to idle and really badly bogs on acceleration lumpy idle and black spark plug its had a new top end as badly scored so bought a narauku one and leo vince exhaust and new inlet manifold and reeds and crank seals but still having this annyoing idle problem and bogging

I hate to be one of those people correcting you. But it was 2 star, 3 star, 4 star pertrol. Not two stroke, four stroke petrol. 😂 But you know that Mark. Oh yes the joys of swapping out not rollers.. My typhoon is loving 97 super after that carp E10. Even 50/50 it was well down on performance. Take care mate.

Hello mate why wouldn't the pipe 2 the casing be creating pressure to work the feul pump?

I have a BIG problem with a SF2 LC. I am almost 50 years old and have a lot of experience with 2T but doesnt have any more ideas on what to do.. Can I send you a movie of how it sounds and what I have done?

9:30 what does that cable for the seat do?

I've switched to Tesco super E5 99 Ron. The bike runs fine but won't start easy now. What is the problem?

That nasty e10, just destroys some types of rubber

hi mark im after a bit info on carbs if u dont mind helping me out is there any were we cud chat on message or skype or even on the phone , just cant find anyway on hereto message you direct

had a full lock up on my girls scooter with this crap ....... filled it just once :(

Oil injected 2 strokes, as opposed to the pre-mix 2 strokes, have the biggest problems with E10, due to being run right up to the edge of under lubrication.