Engine cutting out

[nathandenniso...]

Just started commuting on my 125 and not realised how many miles I have been doing and ran out of petrol on the way home last week, put it on reserve and got my way to a petrol station and filled up, on my way to work today going up a hill in a 50 and I start losing power and it eventually cuts out on me, I put it on reserve once again and got to the petrol station but my tank was nearly full (as expected), could it be linked to the running out of petrol last week? Thanks

[MarJay]

If I was being cruel I would merely answer with "I don't think so." and leave it at that.

I'm fairly certain that your issues are not related to running out of fuel last week unless there is some sort of blockage in the fuel line. It would be worth us knowing what sort of bike it is before we can make further diagnosis...
____________________
British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[nathandenniso...]

It's a Yamaha Sr 125 W Reg, rang up local garage and he seems to think that if it hasn't been ran low on petrol for a while (it hasn't) then it could have been a build up of bits of muck which has caused a brief blockage and if it does it again to give it a clean out?

[N cee thirty]

crap from the bottom of the tanks been sucked through in to the carb

clean the carb
____________________
'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[nathandenniso...]

[2wheelsteve]

[nathandenniso...]

[nathandenniso...]

May I also add that when the engine cut out on me and I started it up again first time it didn't have any problems for the rest of the journey on normal tap position

[2wheelsteve]

[Pete.]

[kingsknight]

me and rob just covered this shit with someone else.

https://www.bikechatforums.com/viewtopic.php?t=212477

Its crap in your carb!
____________________
TS50 (sold) NS125F (sold) NSR125R-K (write off after 2 crashes) CG125 (nicked) XR125L-3 (Sold )-: ) DR125SM '11 (sold yay) XL125V '12 (In love with this bike) XT600E '04 (fun on the dirt)

[nathandenniso...]

Ride home was fine, if anything seemed alot quicker when pulling back the throttle (yes I know it's only a 125), but seemed as if some of the shit has gone

[nathandenniso...]

Sorry to be a pain again, but once again on the ride to work today I started losing power from around 45 mph, I was still going but on full throttle I was doing 40, it just felt as if I had half the amount of power, so could this have been more rubbish in the carbs? I turned off the engine left it 5 seconds started it up again and I got to work easy no problems

[N cee thirty]

sounds like theres crap in your main jet
____________________
'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[nathandenniso...]

Is there any chance of all the rubbish passing through over time, or is it best to get it looked at?

[N cee thirty]

what you wanna do really is clean the whole fuel system

drain the tank,take the tap apart and try and get any dirt out

maybe try a inline filter
____________________
'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[chris-red]

Clean it out.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

[doggone]

You might have rusty water in there from condensation or worse rain getting in.
This is to be expected with a rather old bike like this - TLC needed.

[fiery tupp]

Check & see if the plug is oiled up & if you have the standard air filter check how oiley it is , clean & re'oil , on the Sr I had it needed doing quite often

Clean the carb & fit an inline fuel filter
____________________
If you can't fix it with a hammer , use your head .

[stinkwheel]

Before you start pulling the carb apart, check the fuel tap.

As your local bike shop correctly said, running to the bottom of the tank if it hasn't been on reserve for a while can lead to a load of crud getting into the tap and filter.

If it were me, I'd check this first. Either drain the tank or take it off and lay it on its side at an angle so the fuel is away from the outlet. Remove the tap and give it a good clean out.

Some taps can be dismantled. In which case, do so and rinse the bits in fresh fuel. Some can't be dismantled in which case the best bet is to give it a good rinse in fuel and blow compressed air back through the tap with it in both positions.

If you get a load of crud out, try it back on and see how it goes. If it is muck in the fuel system, you'd most likely see a load of it stuck in the guaze filter on the fuel tap.

If it's still cutting out after that, take the carb apart and clean it out.

No point stripping the carb if there is still a load of rubbish gumming up the tap, it'll just run in and foul the carb again.

Worthwhile fitting an inline fuel filter to prevent any rubbish getting into the carb again once you've cleaned the tap out. Then if the same thing happens again, you know it is only a blocked tap or a blocked filter, the filter will stop muck getting as far as the carb. Paper element fuel filters are best, if not particularly pretty.

This type:
https://www.mchenryse.com/imgs/products/in-line-1-4-inch-fuel-filter.jpg

EDIT: Also worth having a good look at the inside of the tank with a torch for signs of rust, muck and water. If present, drain the tank and give it a good flush out with fresh fuel while the tap is off.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Paxovasa]