Stuttering with constant speed
Thread Starter
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Junior Member
Joined: May 2009
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Stuttering at constant speed
Hi there,
My bike does have problems with constant speeds.
When I am cruising at speeds like 50mph and 30mph the bike stutters a little.
Like I am playing with the gas constant.
with 30 its stutters harder then 50.
Bike acceleration is fine. The bike drove a total of 17 945 miles.
Who knows what this can be and how I can solve it?
Thanks.
My bike does have problems with constant speeds.
When I am cruising at speeds like 50mph and 30mph the bike stutters a little.
Like I am playing with the gas constant.
with 30 its stutters harder then 50.
Bike acceleration is fine. The bike drove a total of 17 945 miles.
Who knows what this can be and how I can solve it?
Thanks.
Last edited by BlackLion; Jul 30, 2009 at 01:59 AM.
Senior Member
Joined: Jul 2009
Posts: 769
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From: Pittsburgh, PA
Look into the side door and see if there is a piece of rubber above the spark plug wires which goes between the wires/engine and the air box.
After that, take your spark plugs out and see what they look like. Take a picture and upload it here if you can.
After that, take your spark plugs out and see what they look like. Take a picture and upload it here if you can.
Thread Starter
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Junior Member
Joined: May 2009
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I don't know yet.
It's hard to get them out the engine.
You get handy in it but it takes a while.
I will check the other 3 another day.
What if they are all good?
oh and btw the cover was sitting a bit loose. the sparkplug don't have a kind of cover but was placed on the screw thread (dont know how its named. i mean the thing were you can turn a bolt on)is this normal?
I mean that thing at the top off the sparkplug:
It's hard to get them out the engine.
You get handy in it but it takes a while.
I will check the other 3 another day.
What if they are all good?
oh and btw the cover was sitting a bit loose. the sparkplug don't have a kind of cover but was placed on the screw thread (dont know how its named. i mean the thing were you can turn a bolt on)is this normal?
I mean that thing at the top off the sparkplug:
Last edited by BlackLion; Jul 30, 2009 at 02:29 PM.
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Joined: Aug 2007
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if all 4 plugs are the same brownish color, then it means the carbs are delivering the same correct mixture in all 4 cylinders. If one is white, it is running lean, or coolent is entering the cylinder. If it is black, it is running rich, or oil is leaking into the cylinder.
The cover on the top is just an adapter, so your leads fit onto the plug.
Some other leads on other types/bikes you have to unscrew the adaptor, for the leads to fit.
The cover on the top is just an adapter, so your leads fit onto the plug.
Some other leads on other types/bikes you have to unscrew the adaptor, for the leads to fit.
Senior Member
Joined: Aug 2007
Posts: 100
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Here....analyze the condiotion of your engine:
http://www.aa1car.com/library/reading_spark_plugs.jpg
http://www.beru.com/english/produkte...gnosehilfe.php
http://www.aa1car.com/library/reading_spark_plugs.jpg
http://www.beru.com/english/produkte...gnosehilfe.php
Thread Starter
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Junior Member
Joined: May 2009
Posts: 25
Likes: 0
if all 4 plugs are the same brownish color, then it means the carbs are delivering the same correct mixture in all 4 cylinders. If one is white, it is running lean, or coolent is entering the cylinder. If it is black, it is running rich, or oil is leaking into the cylinder.
The cover on the top is just an adapter, so your leads fit onto the plug.
Some other leads on other types/bikes you have to unscrew the adaptor, for the leads to fit.
The cover on the top is just an adapter, so your leads fit onto the plug.
Some other leads on other types/bikes you have to unscrew the adaptor, for the leads to fit.
What should it else be?
BTW it also looks not running smooth in idle.