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Ccm 644 carbs flooding when engine off

This morning found petrol dripping out the air filter. Bike off but found the battery was drained. ?????

Posted by Anonymous on

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Hi, Anonymous and the usual suspects are:
1. Dirt or other foreign matter between float valve and its seat.
2. Float valve sticking.
3. Float valve and/or valve seat worn or damaged.
4. Float misadjusted.
5. Float cracked, leaky or damaged.
6. Excessive "PUMPING" of hand throttle grip.
For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have nice a day.
Carburetter experts required
http://www.hainesmc.co.uk/ccm_motorcycle_spares/ccm_644_spares/ccm_644_carburettor_spares_and_upgrades
CCM 644 Dual Sport Supermoto 2003 service manual DOWNLOAD FREE FULLMANUALS...
CCM Spares 644 Dual Sport
CCM 644 Dual Sport

Posted on Jan 24, 2016

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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voodoomox
  • 1689 Answers

SOURCE: 2002 honda crf450r starting problem

Hi Smit,

here are some thread that will really be helpful for you and your bike.

http://www.thumpertalk.com/forum/archive/index.php/t-589583.html

http://www.supermotojunkie.com/showthread.php?p=862289

http://www.mototips.com/general-bike-repair/21014-crf450-04-hard-start-cuts-out.html

happy trails,

regards,

voodoo

Posted on Jul 22, 2009

SOURCE: Carb (Mikuni) flooding on Yamaha Vmax motor cycle

You will have to adjust the float pin of tht particular carb and don't remove them off the rack..just pull them out of the engine and work on the one tht needs attention.
Hope this helps!

Posted on Sep 06, 2009

ollie reece
  • 1167 Answers

SOURCE: can u tell me y they have 2 petrol taps on the 644

one for reserve tank incase run out of fuel and one for normal fuel

Posted on Sep 10, 2009

  • 16 Answers

SOURCE: Carb (Mikuni) flooding on Yamaha Vmax motor cycle

I had a similar problem. For the float needle there is a seat that it goes into, check this for dirt first, then if no dirt present, the brass part (not the needle but the part it seats into) has an o-ring where it mates to the carb body. If that o-ring is not tightly sealed it will allow fuel to bypass. I found o-rings very cheap at pep boys just take an old one with you to match for size. very cheap too. (under 5 dollars)

Posted on Sep 20, 2009

  • 3567 Answers

SOURCE: yamaha t80 townmate carb keeps overflowing with petrol

Yes, the float or the float needle is sticking in an open position. The only other possibility is a float that has a pinhole in it and has filled with petrol and will no longer float as it should.

Posted on Nov 22, 2009

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1 Answer

I have a ccm 644 that won't start bought new battery and checked the air filter which had oil in the bottom of the filter box. Turns over no problem but no start any ideas.


Hi, Philipirk and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
CCM 644 Dual Sport Supermoto 2003 service manual DOWNLOAD FREE FULLMANUALS...
Rotax Manual pdf
CCM Spares 644 Dual Sport
CCM 644 DS Dual Sport Parts
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1 Answer

Why does my ccm 644 keep floading,had carbs off 2,3 times,i get it to stop,put the bike away for a week or so,go back to bike,try starting it and the carbs start flooding again,need help thankscarbs...


I think this may be another one of those faults due to the ethanol and other **** in modern fuels.
There is so much rubbish in petrol the stuff just wont keep also ther have been a lot of problems with the stuff rotting fuel lines this may be your problem, the float needle may be getting stuck by particles of fuel line.

May 06, 2014 | CCM Motorcycles

1 Answer

Why I have a ccm 644,ever since I bought it,its leaked fuel from carbs,ive had carbs off 2 or 3 times,cleaned them,but every time I get it stop leaking and I put the bike away for a couple of...


Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have nice a day.
53 plate CCM 644 DS Burton on Trent
Adventure Bike Rider
CCM 644 Dual Sport Supermoto 2003 service manual DOWNLOAD FREE FULLMANUALS...
CCM Spares 644 Dual Sport
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May 06, 2014 | CCM Motorcycles

1 Answer

I have a ccm 644,ever since I bought it,its leaked fuel from carbs,ive had carbs off 2 or 3 times,cleaned them,but every time I get it stop leaking and I put the bike away for a couple of weeks,next time I...


Flooding carbs often means that the needle valve that the float is supposed to close is leaking, causing the float chamber to overflow. replace needle valves.

May 06, 2014 | CCM Motorcycles

1 Answer

Ccm 644 fumes through carb


Hi, Anonymous for more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
Air movement through carb
ccm 644 need more power
http://www.ludd.luth.se/~joshua/xf650/xf650service.pdf
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Nov 04, 2012 | 2002 CCM RC 30

1 Answer

Ccm 644 misfire


Hi, Anonymous and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition and leaking.
3. Spark plug gap too close or too wide.
4. Faulty ignition coil, module, and or sensor.
5. Battery nearly discharged.
6. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
7. Intake air leak.
8. Water, dirt, or rust in the fuel system, carburetor and/or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor.
12. Loose, dirty, or corroded ignition module connector at crankcase.
13. Faulty MAP, CKP, O2, and/or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damaged intake or exhaust valve.
For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have nice a day.
http://forum.ccmmad.co.uk/topic/7175656/2
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1 Answer

I have a ccm r30 644 2004. The bike will not start i am getting fuel to the carbs but i presume its not going through to the head. I have taken spark plugs out and checked them i have also added a little...


dump the float bowels and inspect/ clean as necessary. consider buying an acid bath solution sold at your local parts store just for this sort of thing or carb cleaner and a toothbrush. you may need to clean your current/ buy new jets for your carbs. just try spraying starting fluid into the carbs while starting the bike by removing the air filter first and try to keep it going as long as possible this may get the juices flowing on its own. goodluck

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5 Answers

2005 honda shadow vlx stopped running


if u smell fuel then its getting fuel so skip the filters. check your air filter and replace the spark plugs. and not doubting you but i've seen this a lot..... make sure you have gas and the valve is on.

Apr 10, 2009 | 2005 Honda Shadow Slasher

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