Re: Need help! and tried to start it but there was no spark. Ill see how the big cooler lines up and if it looks awkward Ill just stick with the 600s. The stator is relatively new about 4 months old. No spark at all tends to indicate that the power is not getting to the points. Check power to the points as indicated by the previous posts. It was running fine with the water hose attached when it started over revving. I disconnected the wires at the box, and checked spark at all 6 cylinders. Engine stop switch stuck closed. Strong Spark 4. Other two-stroke engines might pump lubrication from a separate tank of two-stroke oil. Does this mower have a condenser? To start viewing messages, select the forum that you want to visit from the selection below. If this fails then there exists the possibility the ignition moduel is at fault. Cleaned the carbs etc. Pull the cord, cord jams half way (or pulls back), no spark because the flywheel isn't spinning fast enough to produce electricity through the magneto (coil). I did. Loose wire connector. They are very light and the 2 stroke engines run at high speed. I dunked my 57" Arrow Shark Fighter Cat and got it running again, but only for about 5 minutes then it died. Clean Air 3. The motor started and ran fine days before this. OK, thanks for the reassurance. Engine turns over just fine. Just this weekend I was working on my '91 Kawasaki 550. Typically, this problem happens when the contact points become worn, or more precisely when the contact point's heel becomes worn. I ordered a 49cc 2 stroke engine off of ebay about three weeks ago. Spark plug cap not in good contact with spark plug. With no external signal to the coil negative primary post, voltage would travel through the ignition coil windings without inducing any secondary spark. There are two different types of ignition and electrical systems on lawnmowers. Receiving voltage from the CDI unit the coil will amplify voltage and shoot it through to the spark plug. Upward Stroke in 2 Stroke Spark Ignition Cycle: During upward stroke of a 2 stroke spark ignition cycle, the piston moves upward i.e. The ethanol that is added to our gas nowadays is one of the biggest culprits. In this two stroke engine, only air is compressed inside the cylinder. Still no spark on either plug. All 50cc Piaggio and Gilera 2-stroke engines plus some geared 50cc (e.g. Crank, no start. There is the battery driven and the engines without batteries. 0 Kudos BluewaterBill. Had spark on all cylinders except 3 and 5. I have replaced the spark plug so its not the plug. i am putting the NEW spark plug against the head,frame,and shock and nothing. Your machine has to HAVE these things to Start and to Run 1. Registered: ‎07-14-2011. No spark, no voltage going to the coil packs when cranking. and the fuel (diesel) is injected by an injector fitted in the head of the cylinder. The overwhelming majority of two stroke engines have spark plugs. So I decided to do some preventative maintenance on my 20 hp Merc. I bypassed the kill switch thinking it may have corroded the kill switch, but still no spark. I noticed a bunch of corrosion on the spark plug cables, so I decided to pull them and clean them. I have a 2000 Yamaha 2 stroke that has run flawlesly since I bought it two years ago. Testing for a spark. Rest assure, by following this trouble shooting guide, ... No Spark: 4: Check blue and black wire connections coming from motor to the connections to CDI module. Because the ignition module is electronic and does not utilize moving components, it is normally one of the most reliable part of the engine. That is I remove the plugs. I cranked her over, she sounded like she wanted too, shot a small spray of starting fluid in there and she fired right up, then had spark on all 6. Ignition Module Failure. The result will be an engine that performs badly, if it starts at all. I have no spark on my Victa corsair 2 stroke lawnmower. no spark on Victa lawnmower 2 stroke? I have a 2 stroke geely that dont have any spark, I changed the coil and stator with another one and still no spark? No spark. Click here to read more. The remaining operations of the two stroke compression ignition engine are exactly the same. I can't seem to find anybody that know how to hook up the two wires from the ignition coil, red and black. Having problems with your 2 stroke bicycle engine? Modern replacements are heavy and expensive. Last weekend it would not start. The spark seems somewhat weak. With all those washers and things, it's not hard to connect the points wires in a way that they either short out or don't make a connection. It is damaging and not necessary. Post by Vitoow » Sun Dec 20, 2020 6:38 pm. Hi My huskvarna wr 250 two stroke has no spark to the spark plug I have tried disconnecting the kill switch and have checked the wiring and have a new spark plug what else can I try. I think there are problems with the ignition. Since then i have spent hours upon hours trying to get it to spark with no luck. Mercury 115 inline won't start, no spark. Top 10 Best 2 Stroke Spark Plug Posts: 9,551. Any help will be much appreciated! To help you in your search, we have completed this list of the Best 2 Stroke Spark Plug. If no spark appears, check for broken wires, shorts, grounds or a defective stop switch. Diagnosing no spark on a Lawnmower engine. GT500 no spark. I haven't started it it in over a year. If there's no sign of a spark, try a new one or even a plug from a lawn mower (to test the ignition circuit is okay) before you attempt any more in depth troubleshooting. Hello this is my first post so if i'm missing crucial information please let me know, I bought a GT500 awhile back and i finnaly got the time to try and fire it up. If no spark you'll have to remove the blower housing and check the ground wire back to the coil, checking that it is not shorting along the way. The engine will run clean sometimes and then sputters and backfires and quits. Once you have confirmed that the stop switch is working, reconnect the spark plug lead. I disconnected tha battery, nothing. There is no spark plug in this engine. I have been through the carb twice and I think it is ok. If you are pulling a start cord you don’t have a battery. ... Answer: 2-stroke engines don't have a sump (reservoir) containing oil. High voltage is then generated in the coil windings. Admiral. Magneto damaged. Message 6 of 13 (27,138 Views) Reply. Disconnected the kill switch to check for short. Want Answer 0. from the bottom dead center to the top dead center. What causes this? The upward movement of the piston creates a partial vacuum in the crankcase. The best option is to use a spark tester which plugs into the spark plug lead (instead of the plug) and is clipped to an earth point on the moped engine. If it sparks then it is the fixing at the control plate that is earthing out. The Flymos have no numbers. 97 Mercury 20 HP 2-stroke NO SPARK June 25th, 2018, 06:32 AM. Faulty or damaged coils will have weak or no output. i have a 2 stroke chainsaw motor on a little pocket bike i cleaned ALL connections and when i turn it over the wire will give me a pretty good shock if im up against the frame. It's getting fuel, but no spark. No spark; weak spark: Spark plug fouled, broken, or misgapped. 2 stroke engine.. no spark; If this is your first visit, be sure to check out the FAQ by clicking the link above. This led to a marked reduction in spark plug fouling, which had previously been a problem in two-stroke engines. Here is what I have done so far. CDI unit faulty. 2 Stroke Trouble Shooting Guide; 2 Stroke Trouble Shooting Guide. You may have to register before you can post: click the register link above to proceed. I agree with tester, spark plug should be checked first, then the compression and or carb, the filters (air and fuel)...if you aren't getting a spark then the spark plug needs replacement have the dudes at your 2 stroke engine repair place show you the correct gap, how to clean the thingys that make the gap as they get gooed quickly, only use NO ETHANOL gas! When the module and coil begin to fail, it's typically because the units have been burned out. thanks Posted by tony evans on Aug 24, 2013. 8. I’ve got a 2012 115 Yamaha four stroke. Hey guys first time poster here. On any other lawnmower this suggest that the flywheel key has sheared. Two-stroke oils, which became available in the 1970s, are specifically designed to mix with petrol and be burnt with minimal unburnt oil or ash. I have two 89 225 o.m.c sea drive i have no spark from the spark plugs and i did all i know how to do and to them Report Inappropriate Content. While moving up, it compresses the air-fuel mixture in the combustion chamber. Our machines ran FINE without it and no small engine likes it. Went through and found I had no spark. Spark plug cap or high tension wiring faulty. How do i get spark. took the old plug and gapped it about a quarter inch and not a spark. Air/fuel mixture incorrect: Idle air screw mis-set. Was running Awesome!! Rod October 2008: It sounds almost as if the position of the coil, in relation to the flywheel has been fractionally adjusted. Often a faulty CDI unit will see intermittent or no spark on cylinders and may only breakdown when your engine warms up. I have a 90 hp Yamaha 2 stroke .I replaced the cdi and i have no spark on cylinder 2&3 .I think the coils are bad #1 is firing so I switched coils and now no fire on 1.But I can take the 2&3 wires fro … read more I swapped the coil and plugs out and still no spark! I hit the stop button but nothing happened. Ignition Coil. 1. A switch, or signaling device, triggers an interruption in the circuit. as those of the spark ignition engine. Got a 2010 250 exc... my bike decided to just stop.workong after riding one day. The engines then turn easily and the plug can be earthed to the cylinder and the starter rope pulled. can any one help? This problem can only happen on a 2-stroke because there are no valves to be operated in a set sequence, as in a 4-stroke engine. The ignition coil or module for a two-stroke engine regulates the ignition power, and converts it to charging electricity for the battery system. Derbi) which use the same ignition. It's assumed you have and know how to work a multimeter! 2 Stroke no spark help? The engine occasionally took 15-20 seconds of cranking before it finally started, before it failed. I took off both spark plug cables and it continued to rev. Ignition coil faulty. Suzuki 2-Strokes: Gt550 1973. Compression (around at least 90 PSI on a 2 stroke like yours) 2. If you are looking for top quality Best 2 Stroke Spark Plug, read the detailed reviews on top 10 Best 2 Stroke Spark Plug before buying. And tried to start and to run 1 spark ; weak spark: spark plug so its not plug. Box, and checked spark at all tends to indicate that the power is not getting the. 115 inline wo n't start, no spark Vitoow » Sun Dec 20, 6:38. Good contact with spark plug cables and it continued to rev all tends to indicate that the is. Voltage and shoot it through to the coil, in relation to spark... Module for a two-stroke engine regulates the ignition coil, red and black around at least 90 PSI on 2... 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