information on the problem i accure cutting out

[broomy12]

right well i'm 16 and i'm going to be taking my cbt very soon i have a honda ns125r 1991 and it seams to be going a bit funny as you can tell i'm new at biking and when ever i wanna pull away it stalls its not me as a bike because my uncle has experienced it as i was having a go the revs dies and if you pull a bit of thotal it does no help and dies he sugested the carbs might need cleaning i've also put some more 2 / oil in making sure it was all ok in there and the fuel is ok it had been working fine before for about a week and now its just gone silly it will start up n stay ticking over but one you try and move it cuts plz plz plz could you help me thanks

[Noggin]

So, it starts, and as you try to increase the revs, the engine cuts out?


Craig G(Noggin)
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Current bike: kawasaki zx12r 2002
Track bike: yamaha r6 1998
Old Bike: honda NSR 125 1998

[hush]

You're in first gear on the clutch, and run the revs up a bit, and it stalls as you release the clutch? Can you rest the bike in first gear on the bite point of the clutch? Can you rest it on the bite point with the revs up a bit? What RPM are you at when you prepare to move?

[broomy12]

Noggin: when i increase the revs to pull away it cuts out

hush: when i release the cluch not fully but on the biting point it cuts out even if i tryed adding more revs it seams to not respond with it i've added more full cuz it was a little low and i don't know if lack of fuel would make it run any different ill try again 2 day to see if there is any difference. when i prepare to move i've had it in 2,3,4 thousand rpm. buts still no difference as i said ill try again 2 day see if there is any change if not there must be something wrong but it cant be so serious because it will stand in neutral and stay running

thanks for replying most appreciated

[hush]

At 4K when you reach the bite point of the clutch does the engine instantly die, or do the revs slow first and then it stops?

If so are you able to compensate for the falling revs by applying a little more throttle to maintain 4K?

The bike I've just got is being a little monster, if it is not maintaining at least 3.5K and pref 4.5K when launching, the revs drop and the engine splutters to a stop (not good at a major junction )

If it just dies, I'm no mechanic but I would wonder whether perhaps the clutch plates may be worn or warped...?

[broomy12]

the revs slow first and then it stops. i am not able to compensate for the falling revs i try but it doesnt seam to respond il give it a run in about an hour n find out thanx for your info

[Slinn84]

your engine is being starved by the sounds of it, if it goes and ticks over then once you try reving it to get it moving it cuts out, your carb needs to suck fuel and air into the pistons before it will starts going properly, check your carbs out, or you could check your air intake to your fuel tank, their might be a vacuum stopping any air getting into your engine.

[Pete]

sounds like what happened to my trials bike. fuel tap was not on properly, it ran fine untill I came to the section to pull away and it died. really embarrasijng when I found the fuel tap nearly shut!
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One fine day in the middle of the night, two dead men got up to fight. Back to back they faced each other, drew their swords and shot each other!

[Hex]

Are you running the bike a lot without actually riding it?

If so you could well be fouling the spark plug up. Take it out and have a look at it and replace if needed.

When pulling off give it plenty of revs and slip the clutch - the bike really doesn't make any power till after 6000 rpm.

If your problems continue, consider giving the carb a clean out, though I doubt this is your problem to be honest.
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The BCF's very own Party boy! Though he's getting old and feeling it!
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[Keith]

your 16 with a 125?
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Aprilia RSV Mille R Edwards Replica - Aprilia RS250 - Suzuki GSXR600 Supersport Race Bike

[AcIdBuRnZ]

Let the engine warm up for at least 5 minutes before attempting to ride it.

2 strokes don't like pulling away from cold.

Hope this helps

Mark
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Past: Honda NSR125R >> Kawasaki ER-5a2 >> Kawasaki ZZR-600e1 >> Suzuki GSXR-750Y >> Honda VTR 1000 Firestorm
"Chickity China the Chinese Chicken..."

[broomy12]

Sorry i haven't typed back in ages, been very busy with college. it's all cleared up now. Thank god. My bike will pull away at 2000rpm is that a good thing.

[atom]

I started having the same problem today ( increase throttle, try slipping clutch, bike dies ) on an RS125, the Guy at the shop told me to give it a right blast every couple of days. I've been running it to and from work in the city so hasn't had much in the way of blasting. Could this be causing the problem?

[broomy12]

I haven't been able to i'm only 16 still. but it stoped as i've toped up the water and the 2stroke and made sure oil was ok and it seamed to me ok.

[broomy12]

[atom]

Em I know why mines was cutting out now, turn fuel to reserve....time to fill er up.