I recently bought a rx 100 used,without the magneto plate and flywheel.found an original plate but used another flywheel .so i took the bike to a mechanic to install the parts ,he told me that the crankshaft bearings needed replacing .when he replaced the bearings and mounted the engine .however when he tried to start the bike ,he said that it is starting in reverse.can anyone help?
An expert who has achieved level 3 by getting 1000 points
An expert that got 20 achievements.
An expert that got 10 achievements.
An expert that got 5 achievements.
Re: rx 100 reverse start
Make a couple of calls to different Kawasaki dealers in your area. Ask what direction the flywheel is supposed to turn when the engine is running. Chances are the mechanic is seeing a directional arrow on the odd-lot flywheel when the correct flywheel has the arrow going the other direction. Put the bike on the centerstand. Start the engine and put it in first gear. The sprocket should be turning counter clockwise.
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. Good luck!
- 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.
Are you swapping engines? Only manual transmissions use a flywheel. Automatic equipped engines use a flex plate to mate the torque converter to the engine crankshaft. The flex plate is bolted to the crankshaft just like a flywheel, but is much smaller, thinner and with very little weight. If you do have a flex plate mounted, it must be the wrong one to match your torque converter and transmission.
The magneto is probably where the problem is. You'll need to pull the cover off of the motor and check the gap between the magneto and the flywheel. If the bolts holding the magneto have vibrated loose, the gap between the magneto and the flywheel will be incorrect. While you have the motor cover off, check the wiring to make sure you don't have a short in your ignition wiring and clean the air filter. I don't remember what the gap is between the flywheel and magneto, but .010 In. sounds familiar. Both legs of the magneto should be the same distance from the flywheel and they must not touch the flywheel at any point. I have used a matchbook cover between the flywheel and magneto while I tightened the magneto retention screws and it worked.
flywheel bolted to engine, clutch disk and pressure plate, also has a throw out bearing that should be replaced at the same time. you don't need to replace the flywheel unless it is cracked though you should have it turned down at a machine shop.
It sounds to me that you have done most all of what is needed. Just take some fine sandpaper to the magnets in the flywheel. After sanding, wipe it clean, then spray it with carb cleaner to remove any possible residue. Now give the magnets a spray coating of clear polyurethane coating. The flywheel will never rust again. Replace the source coil and install a new spark plug. A plug that is carboned up can lessen spark voltage. The last item is the battery. A weak one can rob power. Please rate my answer. Thanks.
Hello, the next couple of things to check would be under the engine lid.
Remove the screen over the air fan on the top of the fly wheel.
Remove the 4 bolts securing the main lid and remove. Depending on the year of this engine it may have a secondary cover that Craftsman put on that will need to be removed first.
When the lid is off you will see the magneto coil right above the spark plug; just follow the spark plug wire up to it.
Use a wrench to see if the magnet on the fly wheel is strong. If the magnet is bad or really weak the flywheel will need to be replaced.
Next check the magneto ground out wire. It will be a small black wire on the magneto. Unplug it then crank the engine. If the engine starts plug the wire back on the magneto and if it shuts down there is a short along the wire. It should only shut down or short out when the key is shut off. You will need to find the short if this is the problem.
If the magnet is strong and the above test still fails to provide a spark then it is likely that the magneto is bad. You will need the rest of the model number; it will look something like: 31c707- # # # # - # # The part runs somewhere around $35.00 from Sears, but you might find it on-line cheaper.
Replacing the magneto is pretty straight forward from there.
Remove the old one and replace the old one adjusting it as far away from the flywheel as possible.
Turn the flywheel until the magnet is directly across from the magneto.
Put an ordinary business card between the magneto & the flywheel.
Loosen the 2 screws that hold the magneto in place just enough for it to tighten up to hold the business card in place.
Tighten the screws holding the magneto & rotate the flywheel to remove the business card.
Test rotate the flywheel by hand a couple of full turns to ensure there is no contact with the magneto.
Replace the small black wire, spark plug and spark plug wire, then test fire the engine.
Shut the engine down and replace all the remaining parts in the reverse order as removed.
You should be good to go after this. If this was helpful please vote yes. Thank You!!
Pull off the side cover where the cord is.Make sure the keyway in the flywheel is not broke and flywheel has not turned.If flywheel did not turn the timing is fine.Too set the air gap you have to loosen the screws on the magneto .Slip a piece of paper or metal that is .010 thick between magneto and flywheel and turn flywheel until magnet pulls magneto down.tighten screws and reinstall cover.
You should be able to get a new magneto at any local lawnmower repair shop. The proper gap can be achieved using a standard business card. When you get the new mqagneto, turn the magnets on the flywheel to the opposite side away from the magneto, replace the magneto pulling it all the way back away from the flywheel and "snug" 1 or both of the mounting screws.
Now, turn the flywheel magnet to where it is centered under the magneto, insert the business card between the flywheel and magneto and loosen the screw you tightened earlier. Magneto will pull down tight to the magnet. Tighten both screws then rotate the flywheel to remove the business card
Rust on the magneto has no bearing on the output of a spark. The magneto or the points if it has them could be the problem. If the unit has points they may be under the flywheel. If so equiped, that would be the logical place to start. If no points, I would replace the magneto. When you place the new one on, place a piece of paper between the flywheel and the magneto. When you tighten the magneto, pull out the paper and turn the flywheel by hand. If the magneto turns without touching, put everything together and try it out. Good luck...Lee