Honda XR125 Keeps cutting out.....SORTED!

[Zapnut]

Hi Everyone, I’m a total noob here so this is my first post.

Back last July I went through the CBT and got myself a 2003 Honda XR125 and since then its been fantastic, every morning it starts fine runs fine and I have had no problems.

Until this morning, the bike started fine and I got about 2 miles from home and suddenly the revs started dropping (I turned the throttle but nothing the revs just died) the bike then cut out.

at first I couldn’t even get it started back up but now I can start it with the choke fully down (off?) and it will idle (very sluggish low idle speed) and literally if I put my hand on the throttle and move it even a millimeter it just cuts out. If I put the choke fully up (full on?)
I can start it and rev it but it sounds awful and will rev about half as high as normal then just stop an make a low sound rev (like accelerating in top gear at 20mph) then when I let go it just comes down and dies.

I needed to get to work so I manages to clutch and throttle it home with the choke on fully (as soon as I rev it while moving the whole bike judders and bogs down and looses power) and now its sitting in my garage.

Now I’m new to bikes so I have no idea where to start here and any advice would be greatly appreciated.

[Paxovasa]

Have you checked the oil level recently?
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Suzuki GSF600 K3 (in the fastest colour, black).

[Zapnut]

I had a look at it when I got home, it was quite low but not dry I have topped it up now.

[Paxovasa]

Are you on reserve (petrol)?
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Suzuki GSF600 K3 (in the fastest colour, black).

[Zapnut]

Gave it a full tank yesterday have driven about 10 miles since then.

[Paxovasa]

[Zapnut]

Yeah i was on reserve before i topped it up.

[Paxovasa]

In that case, it may well be just some crap that was in your tank has got into the fuel line / carb.
____________________
Suzuki GSF600 K3 (in the fastest colour, black).

[Zapnut]

Ok how would I go about cleaning it out? Is it a case or just trying to rev it through or do I need to take some things apart?

[Paxovasa]

It might pass though by itself, or it may need the carb removed, if the blockage is in a jet.
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Suzuki GSF600 K3 (in the fastest colour, black).

[Zapnut]

Ok well how hard a job is it to remove the carb and give it a clean out?

[Paxovasa]

Not hard if you have a little knowledge and the right tools.
____________________
Suzuki GSF600 K3 (in the fastest colour, black).

[Zapnut]

Ok Great, I will take a look tonight assuming nothing goes wrong how long is the job likely to take? Thanks a lot for your help

[Paxovasa]

Depends on how accessible the carb is

Try starting it again first.

It would aslo be wise to give the petrol tank a clean, get all the crap out of it.
____________________
Suzuki GSF600 K3 (in the fastest colour, black).

[Zapnut]

Will do. Cheers!

[kingsknight]

Trust me its crap in the carb, I know a bloke with 04 CG which has the same engine and he had the exact same problem as you when he went into reserve.

Buy some spray crab cleaner, spay every hole you can see in the carb. That should sort you out mate, keep us updated!
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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)

[kingsknight]

how many miles has your bike done?
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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)

[Zapnut]

Its just clicked over 13k iirc need to get it going again so I can get it sold, doing my test at the end of the month hopefully!

[kingsknight]

13k is quite low! Spray the carbs!
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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)

[Zapnut]

Will I need to take it off to spray it or can you get to it without removing? (like I said im a newb to bike mechanics)

[kingsknight]

Nope, just take the airbox off and spray all the holes you can find on the crab. Use loads of spray! It's very simple mate! You should be fine!
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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)

[Zapnut]

Great! Cheers for the tips!

[kingsknight]

Remember you got 8 years worth of crap at the bottom of you're fuel tank! I'v owned my bike for nearly 2 years and haven't been in my reserve once.

If I was you I would avoid using reserve if you can!
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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)

[Zapnut]

Ok I just got home and tried to just get the bike to start again (wasn't able to pick up any carb cleaner every wares closed) now, I tried turning the bike over and this time after a few tries the bike instead of making the startup sound makes a fast clicking sound (doesn't sound like its trying to turn over) and the horn was extremely quiet then I tried a few more times and now the clicking is slower and the horn doesn't sound at all, so im thinking dead battery could this be a cause of the other symptoms as well? or is it more likely just bad timing and the battery is dead and there crap in the carb

[Paxovasa]

Your battery is flat.

You still need to sort out the fueling problem aswell
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Suzuki GSF600 K3 (in the fastest colour, black).