84 Big Red Starting Problem and Spark plug eater
#1
84 Big Red Starting Problem and Spark plug eater
Hello there,
here is my problem, I have a 84 big red 200 and It just keep eating spark plugs. I have to change the spark plug like every day when I use the bike, and this is when I can start it. Sometimes It wont even start, and my spark plug gets black and wet (on the start, when running, it just become all black , I'm not sure if there's oil on it, but it's sure there is gas. Sometimes, the bike runs for like 10 minutes, and stop, and won't start again.
The spark plug wire is new, and the stator too, I cleaned the carb, and replace the needle (groove #3) and seat. I think this is the original jet of 90 or 95. I do use Ngk's 8 but the spark doesn't seems too powerfull when I checked it outside the engine. I also notice that there's oil in the pull starter assembly, I don't know if it's normal or not.
My bike started to do this after the motor heated because of an oil problem, do you think a valve overheating might be the problem?
Thank you and sorry for my bad english I'm from qu?bec.
here is my problem, I have a 84 big red 200 and It just keep eating spark plugs. I have to change the spark plug like every day when I use the bike, and this is when I can start it. Sometimes It wont even start, and my spark plug gets black and wet (on the start, when running, it just become all black , I'm not sure if there's oil on it, but it's sure there is gas. Sometimes, the bike runs for like 10 minutes, and stop, and won't start again.
The spark plug wire is new, and the stator too, I cleaned the carb, and replace the needle (groove #3) and seat. I think this is the original jet of 90 or 95. I do use Ngk's 8 but the spark doesn't seems too powerfull when I checked it outside the engine. I also notice that there's oil in the pull starter assembly, I don't know if it's normal or not.
My bike started to do this after the motor heated because of an oil problem, do you think a valve overheating might be the problem?
Thank you and sorry for my bad english I'm from qu?bec.
#2
84 Big Red Starting Problem and Spark plug eater
You've got more than one issue here.
First off here's an easy one. There should not be oil in the pull starter assembly. Sounds like a bad crankshaft seal.
As for the spark plug condition. Let's assume that your rings and valve seals are ok and that you have a carb problem. If the plug is getting sooted up it would be due to a rich condition. I'm not sure about the main jet # but I'm guessing that the # 3 position on the needle is correct. I'd also check the pilot jet and pilot screw. On a side note, if the air filter was extremely plugged up it could cause a rich condition as well.
Good luck and give us an update.
First off here's an easy one. There should not be oil in the pull starter assembly. Sounds like a bad crankshaft seal.
As for the spark plug condition. Let's assume that your rings and valve seals are ok and that you have a carb problem. If the plug is getting sooted up it would be due to a rich condition. I'm not sure about the main jet # but I'm guessing that the # 3 position on the needle is correct. I'd also check the pilot jet and pilot screw. On a side note, if the air filter was extremely plugged up it could cause a rich condition as well.
Good luck and give us an update.
#4
84 Big Red Starting Problem and Spark plug eater
i had the same prob with plugs on the same bike. I had new rings, cleaned valves, in short spent a small fortune. I wouldn't get an hour out of a new NGK, even with all the work done. A guy told me to try a champion plug, the equivalent to the NGK. It worked so well that I never changed the champion for the next 4 years. Worth a try for you too, if it don't work, then you still are only out the price of a plug. Let us know if it works.
#5
84 Big Red Starting Problem and Spark plug eater
yea you could be right, i had the same thing happen only opposite, my old polaris 400 2 stroke would eat up champion plugs left and right, throw a ngk in it and never had a problem, idk could be a possibility, personally i would rather use ngk but hondas are diff than polaris for sure.
good luck
adam
good luck
adam
#6
#7
84 Big Red Starting Problem and Spark plug eater
Originally posted by: jowils
i had the same prob with plugs on the same bike. I had new rings, cleaned valves, in short spent a small fortune. I wouldn't get an hour out of a new NGK, even with all the work done. A guy told me to try a champion plug, the equivalent to the NGK. It worked so well that I never changed the champion for the next 4 years. Worth a try for you too, if it don't work, then you still are only out the price of a plug. Let us know if it works.
i had the same prob with plugs on the same bike. I had new rings, cleaned valves, in short spent a small fortune. I wouldn't get an hour out of a new NGK, even with all the work done. A guy told me to try a champion plug, the equivalent to the NGK. It worked so well that I never changed the champion for the next 4 years. Worth a try for you too, if it don't work, then you still are only out the price of a plug. Let us know if it works.
If it fixes my problem I will let everyone know.
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