Question about 2005 Honda CRF 250 R

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My 1982 honda cr80 has no smark but has compression and its not the spark plug

My 1982 honda cr80 has no spark and has compression and i just put in a new spark plug any ideas

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  • Honda Master
  • 1,190 Answers

Check thd kill switch ! remove plug cap off the ht and see if you can feel a voltage as you kick over the engine ! it wont kill you but easy way to know if coil is working ! plug caps resister break down !

Posted on Jul 09, 2014

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Posted on Jan 02, 2017

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SOURCE: whats the gas mixture for a 1998 honda cr80

well for a two stroke get a small container of 2 stroke oil and mix it with 1 gallon of gas.

Posted on Jun 03, 2009

SOURCE: 2002 cr80 wont start.

Is the timing right? Check the timing.

Knight.

Posted on Apr 17, 2009

hermit58
  • 33 Answers

SOURCE: Wont start sounds like it doesn't even try to fire

Check the rectifier.

Posted on Jul 12, 2009

  • 3600 Answers

SOURCE: 1982 Honda Magna VF750 won't start.

Try starting it then pull the plug out right after trying if the plug is wet you have to much fuel and the float is stuck or has a hole in it and it is most likely your problem if you have fire. if it is flooded you can pull out the spark plug and clean it and kick the motor over to get excess gas out of the cylinder try installing it again then start it, does it fire up? if it does it's flooded due to the problem listed above. If it does not start pull plugs out again add a cap of motor oil in the cylinders and if the plugs are dry reinstall plugs and see if it runs, If it does it may have stuck rings the capful of oil will make the rings seat once this happens they rings should loosen up if not and it will not run after you shut it off then you have low compression. This is assuming you know you have a blue spark to the plug and have cleaned and gapped the plug or plugs. If you need more help psot here and reply tothe e-mail you recieved with this. Hope this helps.

Posted on Sep 01, 2009

  • 22 Answers

SOURCE: Ignition problem with CB750K Honda

I have a 1980 CB750-F Super Sport and I went through this problem once.
After that long time, as MATHEW said, some gunk (gorilla snot) could be formed into the little carburetor's passages.
It will not come out if You don't "soak" the DISSASSEMBLED carburetors (without rubber parts) into carb cleaner for at least 6-8 hours.
After that, You can wash them with thinner, and then go on with compressed air.You'll be surprised with the amount of gunk that remained into the carburetor's bodies!!!
Good luck

Posted on Dec 02, 2009

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1986 Honda CR80 quit running


C A R B U R E T O R .. have a qualified professional take a look at it....

your bike only needs THREE things to run,,(assuming the insides are good),,
1. A timed spark
2. Adequate compression
3. Proper fuel/air ratio

Start with one... eliminate one at a time until you find out which one is NOT happening!! (This is how a professional would trouble shoot your bike)!

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Not likely valve timing if it will run, cams are one piece so if one is right all are right. Have you checked compression with a gauge, or just by feel? Try swapping the sparkplug wire with the #1 cylinder and see if the dead cylinder moves with the wire. Also try moving the spark plug to another cylinder and see if the dead cylinder moves with it. If the compression is indeed good, the problem will be with the spark plug/ wire, or in the carb, these are the only things that can kill a single cylinder. The coils run a pair of cylinders so a bad coil would put out 2 cylinders at the same time. Start with the spark plug, I have seen a perfectly good looking plug, that would fire whun held to the head, but would not fire in the cylinder.

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Whats the spark plug gap for a 2004 honda crf150f . i added a new spark plug but the gap might be wrong. but when i go to kick start it it seems to have less compression.


Less compression has nothing to do with the spark plug unless it is not tight on...As a rule the gap should be enough for a saw blade.Hope this gives you an idea...

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I have a 94 cr 125 , that i just bought , it started at the guys house but now wont start for me , tried putting a new plug in , any ideas


Try a compression test first see what it is, next check for spark, remove plug from engine leave connected, ground the end of the plug to the engine and kick over, if you have good compression and spark, it is in the carburation, some bikes dont start well when cold due to bad carburation(air leaks, bad jets etc)you could try roll starting down hill and see if it starts.

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1982 Honda Magna VF750 won't start.


Try starting it then pull the plug out right after trying if the plug is wet you have to much fuel and the float is stuck or has a hole in it and it is most likely your problem if you have fire. if it is flooded you can pull out the spark plug and clean it and kick the motor over to get excess gas out of the cylinder try installing it again then start it, does it fire up? if it does it's flooded due to the problem listed above. If it does not start pull plugs out again add a cap of motor oil in the cylinders and if the plugs are dry reinstall plugs and see if it runs, If it does it may have stuck rings the capful of oil will make the rings seat once this happens they rings should loosen up if not and it will not run after you shut it off then you have low compression. This is assuming you know you have a blue spark to the plug and have cleaned and gapped the plug or plugs. If you need more help psot here and reply tothe e-mail you recieved with this. Hope this helps.

Sep 01, 2009 | 1982 Honda VF 750 S

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I have a 98 honda foutrax 300 4 wheeler it started acting up and now it wont start took the carb. off and cleaned the jets and everything up and pulled the spark plug out and put my fire over the hole and...


remove all of the old fuel using a siphon bulb and hose. Put in brand new fuel and make sure the line from the tank to the carb. is flowing gas. if not clean or replace the fuel line

Jun 17, 2009 | Honda NS 250 R Motorcycles

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2002 cr80 wont start.


Is the timing right? Check the timing.

Knight.

Apr 12, 2009 | 2002 Honda CR 125 R

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91 Honda Accord No spark


If the timing belt is damaged(broken or missing teeth) you will get no spark. One easy way to tell is that many times the engine will sound different as it turns over, than it used to.

Oct 05, 2008 | 1991 Honda Accord

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