- Posts: 7
- Thank you received: 0
79 kz400 Oil on my spark plugs HELP PLEASE
- dokken
- Topic Author
- Offline
- User
Less
More
03 May 2015 16:25 - 03 May 2015 16:26 #670533
by dokken
79 kz400 Oil on my spark plugs HELP PLEASE was created by dokken
First off, I'm a complete moron. I know absolutely nothing about motorcycles. I just got my first bike(79 kz400)
I was riding it just fine for about 2-3 weeks. All of a sudden on a ride it just died and wouldn't start. Still won't start. I charged the battery, and checked the SPARK PLUGS and they were covered in oil? I'm guessing that is bad? I bought new spark plugs, put them in and it still won't start.
What do i do? Thanks everyone
I was riding it just fine for about 2-3 weeks. All of a sudden on a ride it just died and wouldn't start. Still won't start. I charged the battery, and checked the SPARK PLUGS and they were covered in oil? I'm guessing that is bad? I bought new spark plugs, put them in and it still won't start.
What do i do? Thanks everyone
Last edit: 03 May 2015 16:26 by dokken.
Please Log in or Create an account to join the conversation.
- bountyhunter
- Offline
- User
Less
More
- Posts: 7246
- Thank you received: 337
03 May 2015 18:12 #670552
by bountyhunter
1979 KZ-750 Twin
Replied by bountyhunter on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Oil can be from valve guide seals or blowing past piston rings. Can be coming through a bad head gasket or oil seal.
Whenever an engine won't run:
1) check compression. I think yours should be at least 110 psi ballpark to run.
2) check spark.
3) check fuel.
Whenever an engine won't run:
1) check compression. I think yours should be at least 110 psi ballpark to run.
2) check spark.
3) check fuel.
1979 KZ-750 Twin
The following user(s) said Thank You: dokken
Please Log in or Create an account to join the conversation.
- 650ed
- Offline
- User
Less
More
- Posts: 15344
- Thank you received: 2829
03 May 2015 18:17 #670556
by 650ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Replied by 650ed on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Are you positive it is oil and not fuel? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
The following user(s) said Thank You: dokken
Please Log in or Create an account to join the conversation.
- dokken
- Topic Author
- Offline
- User
Less
More
- Posts: 7
- Thank you received: 0
03 May 2015 20:16 #670578
by dokken
Replied by dokken on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Ok, so i'm not sure if it was fuel or oil on the spark plugs. Either way, It had too much oil in it, so i changed the oil and oil filter, and also bought new spark plugs.
I finally got it to start and run, but it sounded horrible. It was back firing and crackling.
Any thoughts?
I finally got it to start and run, but it sounded horrible. It was back firing and crackling.
Any thoughts?
Please Log in or Create an account to join the conversation.
- dokken
- Topic Author
- Offline
- User
Less
More
- Posts: 7
- Thank you received: 0
03 May 2015 20:17 #670579
by dokken
Replied by dokken on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Ok, so i'm not sure if it was fuel or oil on the spark plugs. Either way, It had too much oil in it, so i changed the oil and oil filter, and also bought new spark plugs.
I finally got it to start and run, but it sounded horrible. It was back firing and crackling.
Any thoughts?
I finally got it to start and run, but it sounded horrible. It was back firing and crackling.
Any thoughts?
Please Log in or Create an account to join the conversation.
- TexasKZ
- Offline
- Platinum Member
Less
More
- Posts: 7564
- Thank you received: 2234
03 May 2015 21:13 #670587
by TexasKZ
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Replied by TexasKZ on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Too much oil in it? Are you sure it was only oil and not oil contaminated by gasoline?
If the fuel petcock and one or more of the carburetor needle valves fail, fuel can overfill the carburetor(s) and slowly leak into the engine. This can leave the spark plug(s) wet and can fill the crankcase with gasoline.
If the fuel petcock and one or more of the carburetor needle valves fail, fuel can overfill the carburetor(s) and slowly leak into the engine. This can leave the spark plug(s) wet and can fill the crankcase with gasoline.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
The following user(s) said Thank You: dokken
Please Log in or Create an account to join the conversation.
- dokken
- Topic Author
- Offline
- User
Less
More
- Posts: 7
- Thank you received: 0
09 May 2015 07:06 #671238
by dokken
Replied by dokken on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Im not sure if it was only oil or oil contaminated with gasoline. All i know is the spark plugs had black stuff on them.
I changed the spark plugs. It will start now, It takes a while to get it to start however, but when it does start it sounds horrible.
I should probably just take it somewhere to get looked at i guess. I was hoping it was something that wasn't going to cost a ton of money, but it sounds like it might??? Do you think this is going to cost a lot?
Thanks
I changed the spark plugs. It will start now, It takes a while to get it to start however, but when it does start it sounds horrible.
I should probably just take it somewhere to get looked at i guess. I was hoping it was something that wasn't going to cost a ton of money, but it sounds like it might??? Do you think this is going to cost a lot?
Thanks
Please Log in or Create an account to join the conversation.
- SWest
- Offline
- Sustaining Member
- 10 22 2014
Less
More
- Posts: 22972
- Thank you received: 2749
09 May 2015 08:26 #671242
by SWest
Replied by SWest on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Do you have a manual? You should. Take it step by step.
Steve
Steve
Please Log in or Create an account to join the conversation.
- missionkz
- Offline
- Sustaining Member
09 May 2015 11:06 #671250
by missionkz
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Replied by missionkz on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Does it run long enough to get the engine warm?
If yes, does slowly engaging the choke make it much worse or very quickly die?
Do you have the air cleaner on or off?
Have you had a chance to view the ignition system with respect to the owners manual?
#1 Have you had a chance to procure a service manual?
I bet you can find a copy on the NET and it might even be free.....
If yes, does slowly engaging the choke make it much worse or very quickly die?
Do you have the air cleaner on or off?
Have you had a chance to view the ignition system with respect to the owners manual?
#1 Have you had a chance to procure a service manual?
I bet you can find a copy on the NET and it might even be free.....
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Please Log in or Create an account to join the conversation.
- TexasKZ
- Offline
- Platinum Member
Less
More
- Posts: 7564
- Thank you received: 2234
09 May 2015 13:54 - 09 May 2015 13:56 #671261
by TexasKZ
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Replied by TexasKZ on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Are you sure you got the spakplug wires on correctly? One coil fires plugs 1 & 4, the other coil fires 2 & 3.
Oh wait, the '79 KZ 400 was a twin wasn't it?
Oh wait, the '79 KZ 400 was a twin wasn't it?
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Last edit: 09 May 2015 13:56 by TexasKZ.
Please Log in or Create an account to join the conversation.
- TexasKZ
- Offline
- Platinum Member
Less
More
- Posts: 7564
- Thank you received: 2234
09 May 2015 14:11 #671265
by TexasKZ
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Replied by TexasKZ on topic 79 kz400 Oil on my spark plugs HELP PLEASE
A genuine Kawasaki factory service manual is a must-have for any owner of a 35 year old motorcycle. It contains detailed, systematic maintenance and diagnostic procedures that will save you a great deal of time, money and grief. Just randomly stabbing at problems often results in added problems and expense.
These old bikes are not particularly complicated, so anybody with basic wrenching skills and aptitude can perform most of the maintenance and many needed repairs. Patience, the right tools, a fsm and some sage advice will likely get your KZ back on the road in pretty short order.
These old bikes are not particularly complicated, so anybody with basic wrenching skills and aptitude can perform most of the maintenance and many needed repairs. Patience, the right tools, a fsm and some sage advice will likely get your KZ back on the road in pretty short order.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Please Log in or Create an account to join the conversation.
- SWest
- Offline
- Sustaining Member
- 10 22 2014
Less
More
- Posts: 22972
- Thank you received: 2749
09 May 2015 17:45 #671284
by SWest
Replied by SWest on topic 79 kz400 Oil on my spark plugs HELP PLEASE
Agreed
Steve
Steve
Please Log in or Create an account to join the conversation.