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Hi folks, I'm having problems staring my h model. I bought the bike about 2 months ago. Recently changed the sparks to iridium. Only since then have I had problems staring the bike when its been idle for 12 hours or more (the time i'm in work for etc) it just seems to die after holding the starter for a few seconds and seems to get slower. I've been bump starting the bike and getting home that way. I've just put the normal sparks back in and have the battery on charge now.

Anybody any suggestions as to what else it could be? mayby i could nip it in the bud before i put it all back together.


Cheers guys

sounds like the cold weather is getting to the battery mate, might be worth getting a new one.

Think you may be right mate, my step father said the same thing. I charged it about 3 weeks ago when i done the sparks it charged in minutes. But today it took a lot longer. might take a wander down to halfords pick up a battery and see if that will cure it.

I charged the battery up fully last night, Went to start it it still took ages to kick in eventually did. thought it was back to normal. So i went to start it today same problems, would not start for love nor money. So i bump strted it (didn't take much of a push) started fine. When the engines hot its starts no problems via the electric start.

I'm wondering if its mayby something to with the oil that i put in, I changed the oil and oil filter about 3 weeks ago. god only knows the oil that was already in there, but i put in: castrol power1 racing 10w 40 fully synth.

Would this have a bearing on it mayby, any info would be greatly appreaciated lads as i don't want to be stuck out in work tommorrow.

It sounds liek the plugs to me, whip em out and give em a clean, they might be fouled up and sooty from not starting before.

http://www.zxrworld.co.uk/zxr400/balancing.html

dont do the balancing bit! Just upto where you can get to the plugs underneath the airbox

thats the thing mate i just put 4 brand new iridium plugs a month ago. I've bought a new battery the guy is charging it for me tonight pick it up tommorrow. He also advised me to try some petrol magic to clean the carbon off. He says it sounds like a loss of compression when starting the bike beacause even when engine is hot now its taking longer than it should to start up. I'll see how i get on with this cleaner stuff.

Hot starting problems did you say?

viewtopic.php?f=7&t=3391

Its a common ploblem!

Did you set the gaps correctly for the plugs?

RobB wrote:Hot starting problems did you say?

viewtopic.php?f=7&t=3391

Its a common ploblem!

Did you set the gaps correctly for the plugs?

I haven't checked the gaps no, i'll get a set from halfords when i get a chance.

I've had problems starting when both hot and cold, mostly cold though (only once or twice from hot). Since i put the mixture into the petrol to clear the carbon it seams to start a lot quicker. when i first put it in the rev needle was going back and forth without me moving the throttle. but now it seams to start a lot quicker. The big test will be in the morning when i try to start it for work at 6am lol.

iridium plugs are evil .. surface discharge plugs are expensive .. and more evil ..

CR9-EK plugs work fine .. and its easier to cold-start.

zimm wrote:iridium plugs are evil .. surface discharge plugs are expensive .. and more evil ..

CR9-EK plugs work fine .. and its easier to cold-start.

Yeah i have to agree with you there mate, was the same when i had my rs125 as soon as i put iridium sparks in it i had probs with it.

But this comma, petrol magic, stuff seems to have solved the problems. but am no counting ma chickens just yet, will see how it gets it on in the morning.

i disagree that iridium is evil all they do it make a better bigger spark.
Don't think it will be the battery all the battery does is powers the starter motor unless the starter motor isn't hardly moving then it wont be the battery. what you want to do is check your carbs take the plastic tops off them pull out the rubber diaphragm
and take the pin out careful tho because there will be some very small washers look which notch the clip is on the pin make sure there all the same in the carbs i think mines seconds notch from the top. then if you can the carbs will need balancing after that the carbs will be running sweet as f*ck.

assuming it works like a car system, the battery doest "just" power the starter at all.