a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need. goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Hi,first of all worm the car up to running tempriture,put your hand on the water pipe that is coming from the fermastate is it hot if so try the one at the bottom of the radiater to see if that is hot if that is hot then the radiater is fine,nexst turn engine off,then undo the oil cap to see if your oil has a musterd colour for oil if oil is ok,then you will have to do a compresion test to see if there is one of your cylinders has low compresion.
some times you can have a broken head gasket which can couse uneven running due to water going into the cylinder.
I hope its not bad and a easy fix this is just to give you food for thought,best of luck.
A two-stroke engine idles because a very small hole behind the throttle plate lets a tiny amount of gas through to keep the engine running. At full throttle the air moving through the carburator pulls gas through the venturi vaporizing it. With the motor at idle, if you give the motor full throttle very fast the first charge or two that get into the cylinder are almost completely fresh air with vary little or no gas mixed in. It takes a revolution or two for the motor to pull air through the carburator fast enough to get a fully charged mixture of gas and air into the cylinder so you get full power. This effect is especially pronounced when the motor is cold, the gas doesn't vaporize as well when the motor parts are cold. If you give it throttle slowly or let it warm up the effect should go away.
Check the pipe right where they come out of the heads. It depends on what type of exhaust system you have on your Road King. If the stock exhaust is on the bike, the rear cylinder exhaust is directed to both mufflers. With the exhaust from the front and part of the exhaust from the rear cylinders going to the right side muffler, it gets more exhaust than the left side and runs hotter. Like I said, check the temp of the exhaust pipes at the cylinder heads. If one of them is cold, that cylinder is not firing. As long as both of the pipes are hot there, you're fine. Just ride the bike and have fun.
I am not sure if the bike is a 650 or 1100 but in either case it sounds like a fuel issue or and air leak. When the carbs were off for re-jetting did they get cleaned? The slow circuit controls to about 2000 rpm and it sounds similar to your problem.
The first thing to look at is the carb synchronization. If the front cylinder is lagging, it can give the same symptoms. I do not think that the exhaust is a factor because the front is cold when running.
Spray some WD 40 at all the intake manifold area when the bike is running and see if the idle changes. the idle will change and push some smoke out of the exhast if the intake is leaking.
If both of these check good I would pull the carbs back off and clean the slow circuits out completely. This is delicate work and shoud be done by and experienced tech.
Establish which is the 'lazy' cylinder (touch the exhaust pipe header with a WET finger). There will be a marked difference in temperature. Change the plug on the 'lazy' side. If no better, check for a good spark - with engine running on the good cylinder, connect the other plug lead to a spare plug and grund the plug body. A weak/internittant spark will be readily apparant.
If there is a spark problem, replace the coil on the dud side. If not, check for equal compresion on both cylinders.
there is exhaust that runs from head to head under carburetor . there should be a damper that opens when cold and closes when hot . when it stays open after motor reaches operating temperature gas in bowl boils and gas is a vapor instead of a mist and causes motor to run lean .