Carb Over Fuelling Problem on a Suzuki Bandit 600 Motorbike

[@stuartbailey9941]

Things don't always go to plan as you said and no-one is infallible. Great to see a mechanic honest enough to show mistakes and then rectify the problem. Yes it's frustrating, yes it costs you time and money but does wonder for your reputation. Thanks for posting, thoroughly enjoyed. Regards.

[@bottletree33]

Heads up to the camera woman for being very patient and steady. 👍

[@stevebayliss4597]

Trying to get mine going for the first time since 2011 (on the road anyway). Sorted rusted fuel tank. Cleaned out and welded a new patch in and POR15 to seal it 👍New vacuum seal/gasket on fuel tap AFTER i got the tank nice and clean . Just had carbs off for a few days and replaced most of the seals, cleaned emulsion tubes and thanks for your video! I had another look at the holes after spinning them carefully in a drill with Autosol (nice and shiny) and as the were sooo small they filled up and became solid like paint in a very short time as so little had to dry. Checked and checked again cleaned with needle files and a good spray and all holes clear now. I wanted to keep mostly OEM parts in the carbs so reluctant to change float needles. I set floats to17.0mm + - 1.0mm on a vernier but after doing a bench test today fuel poured out of the front of them from those tiny holes near the butterflys and yes I've tapped them. Looks like i'll be changing those tomorrow. My pilot screws were 3 1/4 turns out when I checked on disassembly so I put the new ones back in the same not the 1 3/4 it says in Haynes and all over the internet. It ran fine and started previously so thought best left. Thanks for video really helped 👍 2 Days later 02/112024 Installed 4 new float needles and after an hour on a bench test no leaks PHEEEEW

[@kevinspalding5470]

Just come across this channel .....must admit mate I find this very interesting as I do all my own maintenance, brilliant to watch and pick up tips .

[@willswheels283]

Excellent Mark, glad you got the Bandit running right in the end, these things happen, it’s pretty frustrating when you’ve spent time working on carbs and finding you have to go back and do it all again in quick succession. I had Kawasaki GT750 that repeatedly had carb issues very similar to the bandit, even after taking it to a bike mechanic it still played up from time to time. Anyhow another interesting video, thanks mate.

[@millymoo6575]

Thank you for the up load! Your bike tour please when you can !❤

[@themobilemotorbikemechanic]

Coming soon!

[@japfourme381]

Great video Steve, excellent explanations to stripping and cleaning carbs!!

[@joehooyen725]

Nice job mate ! Bike sounds great in the end.

[@harryw9598]

steve top job but do mind your own body. bended back end your knees my friend, they are much harder to fix than bikes. question, did you ever came across worn needles and emulsion tubes? almost forgot, to clean them pilot jets ask a guitar player for the thinnest string. they go to 0.006 inch

[@themobilemotorbikemechanic]

Guitar string. Never would have thought of that 👍

[@stephenhepburn6374]

why didnt u check the float heights first time u took carbs apart ??

[@themobilemotorbikemechanic]

We were told by the customer the work had already been done (by someone else, some time ago) so all they wanted us to do was a quick clean and refit to the bike. As it turned out this wasn’t the case.

[@stevenwarner7348]

Alright now. I'm here in New Hampshire. With one of those red bikes on my porch now. (Your's is blue) All about fb MP and a motorcycle campaign I started in Feb. So my campaign started with the realization that there are many "fast bikes" available on fbMP for well, what would be about 500 quid. or $600.00. Right? Literally from a container (in West Virginia ~Honda cb750 Nighthawk) and then from (not sure where~an 18 year old sold the bike ~ southern New Hampshire ~ 98'. 1200 Bandit) And then last week, local, the red bike. 600cc Bandit. So I am a mess with three 'go fast' bikes, all $600. That's $1800.00. All with potential. All needing a new battery and that four barrel rebuild. So the lift is coming on the porch, the red bike is being switched with the black Honda and I'll start with that. Fair is fair. I checked for the Alcohol Anonymous schedule locally. But really don't have the time for meetings. Not gonna lie. I'll keep an eye on that blue bike of yours. And of course subscribe. Thank you.〰✨👍✨.〰. - Steve from New Hampshire.

[@roniswtf]

Excellent video! Was there any sign of rust particles in the carbs when you cleaned the float valve seats? My bandit had dumped a third of fuel from the tank of into the engine oil too and cleaning the carbs I found the main culprit - rusty gas tank plus torn filter diaphragms on the petcock, both for the reserve and the main fuel supply. Do you reckon adding an inline fuel filter from now on is a valid solution or should I find myself a new petcock?

[@themobilemotorbikemechanic]

No rust particles. Glad you found the issue and cured it

[@charlesscottkelly]

Any idea how i get a snapped bolt out a diagram head cover, man those bolts are stuck bad..

[@themobilemotorbikemechanic]

Try a pair of mole grips very carefully to assist turning the screw whilst using a screw driver. It’s a two person thing but should get it out

[@GASGASENDUROADVENTURES]

Brilliant video i wish this was on last week so i would of known what was wrong with mine but i managed to sort it other day and mine was the exact same newbie me left it on prime and oil was like water 😂 had the owner of this done the same by any chance

[@themobilemotorbikemechanic]

Glad you got it sorted

[@richardhoult5342]

Do you use j.i.s screwdrivers. And when balancing cards do you turn idle , up like the last shop I took my bike to doesn't sound right to me

[@themobilemotorbikemechanic]

Yes and yes

[@danielrooney9945]

Great video i was wondering I have the same issue with my bandit I've cleaned the carbs out but am still getting petrol in the oil sump what ended up being the issue final. I've cleaned the carbs and had them clean but others but still the same trouble

[@themobilemotorbikemechanic]

Get the float valves out and polish the float seats. They are not removable but you can polish them with a cotton bud and some T-cut

[@danielrooney9945]

@@themobilemotorbikemechanicthanks for the response man I'll give that a try fingers crossed this will sore my problem

[@motoadi95]

Can you tell us what was the cause of fuel getting into the oil? Super video as always

[@themobilemotorbikemechanic]

Fuel seeps past the piston rings and ends up in the engine oil

[@mklimu]

Do not use aftermarket needle valves.

[@RoobieRoo2]

Steve bro what's your head torch, have tried loads and failed to find a decent one that i can rely on.

[@themobilemotorbikemechanic]

No idea tbh. The camera lady bought it me for Christmas a few years ago. 👍

[@Gtechracing]

How did you clean the float needle seats

[@themobilemotorbikemechanic]

Cotton ear bud in a drill with a little car polish

[@steve122444]

How does the engine oil get petrol in it, might be a stupid question but I know nothing about engines lol

[@themobilemotorbikemechanic]

If fuel leaks in to the engine (because the carb float valves are not working correctly) it will run down inside the cylinders and leak past the piston rings and contaminate the engine oil. Hope that explains it.

[@chr11sf]

👍

[@stevenwarner7348]

OOPS.... Not your bike but I hope that you visit this bike often. Oh Nooo.. Did I say that? I hope it is reliable and runs forever! With your good grace. I am a mess I'll tell ya. Oh well.

[@UncleBob247]

Bandit carbs are the worst in my opinion hahaha 😂