Question about 2003 CCM RC 30

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Hi i have a ccm r30 644. I have only recently managed to get the thing to start again, but now when i ride it the bike doesnt like to stay at a constant speed. For example if i try to stay at 30mph the bike will juder and has a feel as it is about to stall. There is no problem with the acceleration and when i stop at lights it will idle fine.

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The carb and fuel tank can still be dirty inside and recomend you clean these out and replace the fuel !

Posted on Jan 22, 2014

6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: No spark at the plugs Suzuki engine R30

I have ROTAX engined 604 no spark at my spark plug, just found another site that says the same thing no spark changed every ignition/electrical part and nothing. then spotted small crack in flywheel magnet. i'm going to check mine weekend. worth a try. it says he was bumpin and it worked high revs. mine died when i put it in neutral after a serious thrash on an A road 1-5th gear wheelie :| fort id fried a piston ring but no spark is what i'll fix before i pull the bore apart. good luckk

Posted on Aug 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

  • 73 Answers

SOURCE: ccm r30 rotax 604e year of reg 2002 the engine has

if you are realy lucky and the bike wasn't going to fast and who ever was riding it pulled in the clutch quickly.. then you might get away with just a top end
but no two ways about it the engine has to come apart.... to do it properly special tools and knowlede required you will need to find a shop
Good Luck

Posted on Oct 09, 2009

  • 164 Answers

SOURCE: clutch problem on ccm r30

firstly check your cable adjuster to make sure the gremlins havent taken the slack out during your absence some gouls think this is a funny prank to play if this checks out ok have you given it a decent period of time for the oil to warm up & the clutch to operate properly oil becomes sticky after standing for a period of time creating a film between the friction & steel plates causing clutch slip usualy this can be rectified by simply changing the oil & filter

Posted on Feb 21, 2010

  • 83 Answers

SOURCE: I have a ccm r30

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

Posted on Mar 10, 2011

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As soon as I turn the key the rev counter red lines and stays their and as soon as I turn the key of it goes back down

Hi, Anonymous for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. If necessary, transport your bike to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your problem. 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.
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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.
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Hi i have just started biking and got a ccmrl125 enjoying learning but when i am sat at lights the idle on bike can go up and down for some reason it goes from 2000 revs to 3and a half when it sounds...

Hi, Jjimmyo and the usual suspects are:
1. Idle speed improperly adjusted.
2. Inlet system air leak.
3. Leaking accelerator pump.
4. Loose low-speed jet.
5. Plugged low-speed jet.
6. Contaminated or plugged low-speed circuit.
7. Enrichner valve is not seated or leaking.
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I've recently had a problem with getting my bike started, i have managed to get it to start now, but it can only be started with the choke fully open and if i try to close the choke it cuts out. (Even when...

It is most likely fouled spark plugs. You can take them out and sand blast them, or buy new ones.
I had a CBR 954, and noticed that the spark plugs fouled out pretty easily because it runs so rich at startup (and I would shut it down during the 'warm up' phase).
Here is some more information for you:
What are signs or symptoms that spark plugs in a motorcycle need to be changed?
There are several things that could hint at bad plugs.

- Hard starting.
- Slight to severe hesitation when you give the bike some throttle.
- Stalling, especially when you give the throttle a good twist
- uneven idling (tends to zoom up, or down, or sputters)
- After running the bike for a little bit, take out one of the plugs. If the end of the plug is wet, its not firing, and it could be oil fouling the plug
- take a look at the color of the end of the plug -- if it is white, its running too hot, and it can cause misfires
- look at the same area, and if it is covered in black soot, it can be poor gas mixture and dirt in your tank causing it to foul
Hope this helps.

Mar 13, 2011 | CCM RC 30 Motorcycles

1 Answer

Ccm r30 rotax 604e year of reg 2002 the engine has siezed due to lack of oil .i bought the bike with this problem. can you help me.

if you are realy lucky and the bike wasn't going to fast and who ever was riding it pulled in the clutch quickly.. then you might get away with just a top end
but no two ways about it the engine has to come apart.... to do it properly special tools and knowlede required you will need to find a shop
Good Luck

Oct 09, 2009 | 2002 CCM 604 DS Supermoto

2 Answers

No spark at the plugs Suzuki engine R30

check the fuel filter for sediments clean the carb filters too if your bike has one, overhaul the carb if necessary....

Jul 19, 2009 | 2002 CCM RC 30

1 Answer

Engine management light stays on

usualy when light comes on it has to go through so many warm up cycles to erase if battery is charging and you passes a load test you can erase code but you need obd tester you can get from autozone 70-80bucks plugs in under seat cable is on passenger side good thing about taster is it will read all erors tell you exactly what going on

Apr 20, 2009 | 2003 Triumph TT 600

1 Answer

2006 Aprilia RS125 doesnt start

Hi .... Try switching the petrol off just prior to stopping the engine and start up again with the petrol OFF. There's enough petrol in the carb to start the bike. A good battery should show over 12 volts. Take the plugs out and give them a good clean or replace them. Is there a petrul pump fitted ? A two stroke needs to be ridden quite hard to maintain efficeincy, higher revs etc ........ let us know how you get on ?

Dec 19, 2008 | 2006 Aprilia RS 125

1 Answer


hit reserve switched taps over and the bike did not run. Luckily there was a petrol station close by so pushed it over. Filled up and would still not start. The bike was flooded. Left it a bit and managed to get it started. Switched the taps back on and the bike runs like a bag of sh**. (Will not tick over coughingetc.). Knock the taps off and it will again run Ok until the carbs are empty. Therefore i can only assume someting is sticking in the carbs. Any ideas? What it a common carb fault that would create this problem?,The proper fix is to take the carb float bowls off and clean then ensuring that there is no stifness or notchiness on the float spindles and no dirt in the fuel inlet where the fuel cutoff seatand valve sits. A quick and dirty fix is to tap both the float bowls with a plastic or wooden screwdriver handle (or simillar) about 10times each side .... this will usually free up the floats if they are the issue .. then turn the taps on and see how it runs,,,

Nov 10, 2008 | 2007 CCM 404 Enduro

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