What am I … Jump to Latest Follow ... Left for a couple of weeks and sure enough now wont start same as before. Discussion Starter • #1 • Nov 25, 2012. Get a buddy (or two) to push the … Most of the time, the tank and side pannels are the only things that need to be moved. By continuing to use this site, you are agreeing to our use of cookies. my kmx wont kick start just backfires ever 4 5 kicks it does bumpstart & bike rides fine when started but even when bike is warm it still wont kick start cleaned carb/jets fresh oil and best 2stroke. My 89 chevy got spark and good fuel pressure it wont start i change crank sensor cap and rotor pick up coil in distributor it cranks and backsfire lije a bomb in exhaust when u release key but wont start. I re-set the valves to .002 set my point gap to about .013 at the "T" mark i have spark and the plug is getting wet, all it … Also, I want to test if my current plugs are sparking, to do this do I just put one spark plug on and go through all the leads while pressing the electric start? Before it wouldn't start up at all, the bike ran really crappy. You know the old saying: There are motorcyclists who have gone down, motorcyclists who are going down, and motorcyclists who are going to go down again – down to their garage only to find that their bike won’t start. Weak battery and blocked air filter will cause poor starting or lack of. (Don't run down the battery.) when my nc23 did something very similar i left the bike with the fuel off, and charged the battery over night. 1998 750 monster backfires and won't start. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. But after a few kicks there is a loud backfire. Jump to Latest Follow 1 - 7 of 7 Posts. Some cars wont start if certain fuses are blown. My cj7 has sat for the last year, it ran when I left it but after a year of neglect its taking its revenge. Learn More. If you can, get jump leads and a car - bump starting can be harder than advertised, I started it near enough every day and let it warm up, Yes, wait for the plugs to arrive before stripping your carbs. Bike always starts up 2nd kick. If all of the other electrics are working fine you could take out the spark plug (if easily done) to inspect or dry it / replace it? Discussion Starter • #1 • 12 mo ago. Expose the battery terminals on both bike and car, connecting the positive (red) clamp to the positive post on the motorcycle battery first, and then the positive post on the car battery. Before I placed it on the charger I tried to start it and it turned over and cranked for about one second then wouldnt crank again. Won't Start, Just Turns Over And Backfires - Fixed! Engine backfires when cranking, but won't start? * If it doesn't start, buy new plugs. Just beacuse you've charged a battery 15 times doesn't make it good. I have a 1986 kawasaki vulcan. Buy a new plug if it still doesn't work. THE BUMP START. This is why batteries are left on trickle charge and people regularly fire up their bike and leave the engine at a fair few number of revs for a time or just give it a quick blast around some big roads. The CDI unit should have arrived when I get back from travelling at the start of October. This site uses cookies. Even with today’s improved batteries, if it hasn’t happened to you yet, it will. If you’ve kicked until you’re blue in the face, it’s time to try the bump-start method. I have fuel. May 23, 2017 0 1 frome,somerset #1 herbie, May 23, 2017. hello people So I cleaned my carb. Like my dad's old grand marquis wouldn't start if the brake light fuse was blown. Well, as soon as I started to feed any throttle to it, & just as the boost would start to build past 0 it would start coughing & sputtering. I let it idle for a little bit, maybe 10 min, then went to drive it. Ahh...I had one of those and it was useless. jul 04, 2015 | motorcycles Hello! * Try again with new plugs + car battery * If it starts, put old plugs into your toolbox to use later. Bonneville Wont Start. Turning the fuel tap off will stop the fuel going to the carb. Last edited by finpos on 00:02 - 30 Mar 2010; edited 1 time in total. I try to start her up a few times a week but she's gettin sicker and sicker. Full Forum Listing. As said before, if the battery is weak, it won't produce enough current to power the starter motor and the coils at the same time. If you're cheap, put the old ones in a hot oven to try and burn the stuff off (also may help the engine start if you put in hot plugs, but you invariably end up burning yourself, Your battery is completely stuffed. Pulled out all the jets cleaned them put them back in and set to factory specs. Still just backfires every 5-10 kicks or so. I cleaned the carb twice, new plugs, and all I get is a pop after 3 kicks with a brand new … Doesn't even act like it is trying to start until it backfires or after fires when you crank it for 5 seconds or so continually. Put the plug back into the cap and leaving hanging so that the side of it touches your engine. Good point, in this situation I would normally use the massive hill next to my house to "bump" start it over about a quater of a mile of downhill. It may have failed or passaged have some buildup. It seem to be getting fuel and everything seems to be working, but when I try to start it it just cranks and tries to turn over but won't catch. Go back to the shop and buy a battery. After a couple tries the bike will back fire really loud but still won't start. I have spark. Another one of the fuel issues to check when your motorcycle won’t start is flooding. And after all of this you still haven't checked / changed the spark plug(s)? Take the spark plug out and turn the engine over for a second, that will unflood it. Pull that plug and see if it's wet...as in gasoline. Just leave it, it only takes a couple minutes to sort it's self out. Well today I went to start it and got nothing but backfire, I tried compression starting it and it ran (sounded more diesely..) I changed the plug. I then placed it on the charger overnight and when I tried to crank it the same thing happened (started then went dead) and after that it would only turn over and backfire (quite loudly I might add..lol) but not start. It sat for a couple months, and when I went to start it again, it wouldn't turn over. To jump start a motorcycle with a car, ensure your car’s battery is in top condition and the car and motorcycle ignitions are both in the off position. The best way to un-flood an engine is by removing the spark plugs, turning the choke off, and turning your motor over to drain all the excess gas. Last edited by StevenF on 16:17 - 26 Mar 2010; edited 1 time in total. Press the starter and see if you get a spark. Fuel can blacken plugs but shouldn't deposit brown gunk on them. :). I originally posted this video to ask for help in solving the issues I was having with my 2002 Kawasaki Ninja Zx9r. Well when i was tring to start it, the thing died and since then we cant get anything out of it but loud flaming backfires. The starter motor is a huge current drain, so won't leave alot for the plugs. I am out of ideas if anybody knows anything or has an idea please let me know Thanks for the help :-D Shawn It sounded like it was trying to catch and it fired for one or two pops but that was it. Maybe going too slow? ... Also, it will not start on starter fluid either. ok, so my friend had my kz750b for a while and he couldnt figure out why i wasnt getting spark, turns out he was messing with the wireing on the points and the shaft it rides on, but now i figured out how to rewire it so im getting spark, but i cant for the life of me get it to start, all it does is backfire out the carbs, and sometimes the exhaust too depending on how i move the … herbie New Member. Looks like they're sooty and then petrol is mixing with the carbon ( thus looking like burnt oil - remember fresh oil isn't black either ). My brother tried to bump start it for me but it didn't go, how much speed do you need to bump it anyway? honda fourtrax 350 will not start trys to then backfires through carb,has good spark,removed carb cleaned bowl still no change,has good compression,not sure if spark is good spark ,plug gets wet after trying to start for awhile,not sure if timing issue or valve seat problem Check your vacuum lines for cracks and holes. I have compression but now it still wont start with starter and wont start with kick starter either. A weak battery and a blocked or poorly flowing filter (like in my previous post) can cause that effect on your picture, your air filter could of been blocked for 100s of miles an you wouldn't know, trust me... Don't bother trying to clean the plugs, if they've gone funny it's because of all the clag right up inside the insulator where you can't actually get to clean, so buy new ones. I had to jump start it, but it fired off right away & idled great (I was impressed). The backfiring of the motorcycle is a signal that something isn't quite right. I live in Missouri where the temps are dropping to the teens. They might disconnect their battery too. If you get a feeble spark try cleaning the plug and repeat. Turning the engine over with the starter for a minute or so may empty the float bowl but it might cost you a new starter motor. We checked the spark plugs, and cleaned them up. It also spins over well, doesn't seem to drag or anything. I have no idea what happened between last night and today. Throw them away 6 years later when you can't even remember what the fit. K ... Motorcycle Forum. Won't Start, Just Turns Over And Backfires - Fixed! Dan Ferrell (author) on April 12, 2019: Check the idle air control solenoid. My 2007 Vegas ran fine 2 days ago, but when I tried to start it yesterday it turned over but wouldn't start. A broken or loose vacuum line can result in too much air being drawn into the combustion chamber, which will alter the air/fuel mixture and not allow the engine to ignite the mixture properly. Went out and finally managed to get my exhaust fitted to my downpipes using a gasket I made from a can of Macaroni Cheese, Last edited by StevenF on 13:14 - 01 Apr 2010; edited 4 times in total. MotorcycleForums.net is the leading motorcycle forum for news, specs, reviews and discussions, including road and sport, classic and dirt bikes. So here is the background to this post. Motorcycle Repair, Building, and Restoration. If you don't want to hear that backfire...try and start it, pulling one plug wire at a time..leaving three connected when trying to start it. Hi, I have a 1985 kx 125 2 stroke and it ran great till it ran out of gas. But if it was a safety feature like that, I don't think it'd turn over and you wouldn't get the backfiring. Finpos is right, they do not like starting with a dull battery. If a battery gets too low on charge you can basically damage it / you can't charge it back to previous levels. Conversely, too little air can be the culprit as well. 02' Katana 600 won't start and backfires. If that doesn't cure it I'll get hold of a compression tester to check, but it has a new standard size Wiseco piston and the bore was honed and is within the limits in the manual. That does look like oil. If you find the one causing the backfire...leave it disconnected...and try and start the bike.....hard. Motorcycle Repair. Btw it has a nice blue spark. It has a full tank and the battery is charged and I can hear the fuel pump run, it … Ok so eventually got one of the plugs out and it was wet and has a black tip, here's a picture: take the plugs out and turn the engine over a few times this should force any unburnt mixture out the cylinders. If you don't at all you have bigger problems than the plug. Silly question but is it ok to do this with the airbox and fuel tank off? Clean the plug and put it back in and it should work fine. 23 Posts . Just about to inspect the spark plugs but I can't get the tool down to reach the plugs, do I need to remove the radiator to get to them (thus the side fairing as well?0. What gives? Bike cranks but won't start and backfires - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. After replacing a coil, distributor cap, rotor, starter and a few plug wires, I finally got it to crank over, but now all it does is backfire and not start. Versatile relays that can work fine for most functions in your motorcycle, such as switching lamps, running horns, starting, etc., is the Bosch (now Tyco) 330-073, rated at 30/40 amperes and 12 volts, SPDT, 5 pin, with tab for screw (tab area can be removed); or the Blazer DF005 or DF005W which also has a tab/screw mounting. Went out and finally managed to get my exhaust fitted to my downpipes using a gasket I made from a can of Macaroni Cheese Anyway, tried to start my bike after it and it wouldn't start, it was turning over but just wouldn't fire up, then it sounded like it was backfiring Battery got drained so I just fully charged it and same is happening - turning over but not firing up! The battery is fine, we let it charge after draining it trying to start … my F2 it was just the inspection covers on the fairing then reach in and undo the plugs. I find giving it a minute to settle and then giving it a good bump start normally works for me. :), https://i4.photobucket.com/albums/y118/Wonderboy_001/DSC_0010.jpg, https://i4.photobucket.com/albums/y118/Wonderboy_001/DSC_0011.jpg, https://i4.photobucket.com/albums/y118/Wonderboy_001/DSC_0012.jpg, https://i4.photobucket.com/albums/y118/Wonderboy_001/DSC_0013.jpg, https://i4.photobucket.com/albums/y118/Wonderboy_001/DSC_0015.jpg, https://i4.photobucket.com/albums/y118/Wonderboy_001/DSC_0014.jpg. Discussion in 'Technical Help' started by herbie, May 23, 2017. * If it still doesn't start, … Prior to winter I … Went out to see what it was like today and it's doing the same. Hey guys I've gotta 01 Katana 600 which wont start up at all. Basically yes. The float bowl on the carb will be full however and will contain enough fuel to run the engine at tickover for a minute or so. The thrill of riding your motorcycle is lessened somewhat if your motorcycle tends to backfire. Riding your motorcycle in the open air is a thrill for motorcycle enthusiasts. ok last time out on my Z it felt like crap had no power and i thought it was due to the 1/4 throttle i installed but now it wont start at all. If you have time, allow the motorcycle to sit until everything evaporates. Bolts are underneath the seat usually. 83 500 virago won't start. 4 Posts .
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