NOT STARTING!!! HELP

ross01505 · Post by **ross01505** » Tue May 29, 2007 10:18 am

My new bike which i just bought about 2 wks ago was stripped and rebuilt by my dad and i changing small things on it, like brake lines, pads and all new stainless bolts. I rode it around my block a few times to make sure things were alright and everything was great, power awesome, brakes gd and bike went where i wanted it to go. The only thing my dad pointed out was that as i was going up the street that there was smoke coming out of the exhaust!!! Meaning that it must be burning oil, by worn barrel, piston rings and valve stem seals etc. Anyways started fine 2 nights ago when i was just showing my new toy off to my pals, but now it wont start. Charged the battery, cleaned the plugs and it almost fired up. But it seems to be misfiring and backfiring after i stop the engine turning. and when we checked the spark it still sparked for a second after i let go of the starter button. There is 5lt of petrol in the tank as i put fresh petrol in it. The spark plugs were not too black and they were getting petrol. If it is the timing that is out how do i check it?

Cheers Ross

Post by **rene** » Tue May 29, 2007 11:47 am

are you useing the choke?

is the airfilter gunked up?

ross01505 · Post by **ross01505** » Tue May 29, 2007 12:01 pm

the airfilter is fine, as we took off the airbox last night to see if that helped, and tried the choke but doesnt make a difference. I've checked the choke cable to see if it is pulling the rod that is connected to all the carbs and it is. Lol what a kick in the teeth this bike is, i've had it in bits for about a wk and a half lookin forward to getting out on it and having a blast and now it isnt starting. Still the bike is looking great, but me polishing wont get it anywhere.

superman · Post by **superman** » Tue May 29, 2007 12:53 pm

sounds like the same problem i had when i first got the bike

I think the backfire is somet to do with leavin it for a couple of days thats what mine does if i dont start it for say 2 days then try it gives a rite back fire (flame out exhaust the lot) but then starts sweet so tip there to stop that is as you pull up for the night just turn the fuel off an let it run abit that sorts the problem (well it has on mine)
as for startin if it almost gets goin but then dont it might be worth putting the battery on charge a couple of hours then give it a try with the charger still attached to the battery that worked on mine not had problems since.

Post by **Xphyral** » Tue May 29, 2007 4:44 pm

Try a brand new set of plugs, You sure it was oil smoke from the exhaust and not just condensation from the exhaust evaporating?

RedexRobB · Post by **RedexRobB** » Tue May 29, 2007 5:54 pm

It wont be the timing mate, not unless youve had the engine apart so dont worry there

A new set of plugs i reckon and youll be fine

ross01505 · Post by **ross01505** » Tue May 29, 2007 8:49 pm

I only left th bike standing for 1 night. The choke is a bit delicate meaning when the bike was running if i put it on fully it would rev to 4thou rpm. The bike is on a trickle charge and still is connected when im trying to start it. Theres no water in the petrol as i drained a carb to see. It only back fires once i've just let go of the starter button not during the engine turning over. I think it could be the cdi unit, as both coils are working and the guy i bought the bike off of had reciepts for the carbs being balanced and new spark plugs put in it, and that was only a month ago. Do you normally use the choke full on, or a bit of throttle. I dont think the fact that i left the petrol on all night might have flooded the engine that bad not to start. Im sure it must be something electrical, but i might have to change the spark plugs but they seem fine. I would like it to be something simple so i dont have to strip the bike again.

anyways cheers for the help

ross01505 · Post by **ross01505** » Tue May 29, 2007 8:52 pm

I would like to think it was just condensation as i never managed to the bike up to norm temperature but i need to go a proper blast on it to make sure before i make any assumptions, but if i don't get it started i wont be going anywhere.

Cheers Ross

SplaTZXR400 · Post by **SplaTZXR400** » Tue May 29, 2007 9:44 pm

had had similar problems in the past mate, mines a lemon. tho smoke could be condensation, if its white n quite odourless usually. evidence can usually be found by water droplets around the exhaust exit. if u think a ring has gone, in which u wud have lost comp, test compression, n check oil n coolant for any obvious signs of unusual foaming. i dont have a comp tester, i jus use my hand to seal the plug hole n see if they are similar.

test good spark by removing all 4 plugs, n cranking the engine whilst holding them on the block, check for a decent continuous spark. i once had an intermittant spark caused by HT leads weren't in properly. check mixture as i found mine wouldn't start coz it was rich, thus flooding and backfiring, even tho it had worked before n i currently have it on a richer setting which is fine atm.

anyway hope this gives you a direction to go. let us know.

Post by **rene** » Wed May 30, 2007 9:05 am

have you checked the Regulator? put a multi-meter over the battry termainals and if your getting over iirc 16v's then your regs blown

Post by **Xphyral** » Wed May 30, 2007 1:31 pm

ross01505 wrote:I only left th bike standing for 1 night. The choke is a bit delicate meaning when the bike was running if i put it on fully it would rev to 4thou rpm. The bike is on a trickle charge and still is connected when im trying to start it. Theres no water in the petrol as i drained a carb to see. It only back fires once i've just let go of the starter button not during the engine turning over. I think it could be the cdi unit, as both coils are working and the guy i bought the bike off of had reciepts for the carbs being balanced and new spark plugs put in it, and that was only a month ago. Do you normally use the choke full on, or a bit of throttle. I dont think the fact that i left the petrol on all night might have flooded the engine that bad not to start. Im sure it must be something electrical, but i might have to change the spark plugs but they seem fine. I would like it to be something simple so i dont have to strip the bike again.

anyways cheers for the help

It's highly unlikely it's a problem with the cdi either m8, start with the easy stuff first. A new set of plugs and see how it behaves, the guy might have recipts for a carb balence and new plugs but i've known many garages only clean the old plugs and not bother balencing carbs during a service yet charging for em anyway. If you get it running with a new set of plugs go get the carbs balenced up again.

ross01505 · Post by **ross01505** » Fri Jun 01, 2007 9:53 am

The spark plugs that were in it wer CR9E, so got the denso equvilant of the of the CR9EK, which started the bike straight away, although i still think its strange that all four failed completely. My dad thinks that the bike was burning off the excess oil that was in it as there seemed to be too much, still not managed to go a proper blast to check as the insurance company takes 5 days to get my cover note so i cant get the bike taxed. But the smoke that it was producing seems to have stop and the oil has came down slightly at the same time. Cheers for all the help, i just wish i had fixed it earlier without worrying about all the things that i thought were wrong with it. Also the bike only seems to start off the throttle then catch it on the choke, i think the mixture could be too rich.

Cheers

superman · Post by **superman** » Fri Jun 01, 2007 12:03 pm

Thats how mine starts to be fair i wouldnt bother about that cos when it warms up the problem goes. i cant put the choke on an start i have to start an just catch it with the throttle then apply the choke, plus i dont know if anyone else has this but it wont start if im in gear it turns over an the bike pulls forward a little but it wont start. is that the norm? anyway im not arsed about that as long as it starts in neutral