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craynerd

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    Bromley.Kent.

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    Bikes -Guitars.

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  1. Well I've been using the bike on and off all day. I filled the tank with a little more petrol and did some miles and it has run in a lot. It starts first time, even after being left a few hours and seems to idle ok. I think adding the new fuel helped. I've listened a lot to the bike and the pops do seem to be from the hole in the exhaust so like you said, next step is replacing the down pipes.......which looks like a hell of a job!!
  2. Yes... I'm into engineering but clocks not motorbikes!! Maybe I should increase to 0.75mm Can the holes in the down pipes cause misfiring?
  3. Just googled.... Apparently spark plug set at 0.7mm and zxr400 ideal is 0.7-0.8mm.
  4. . I have fitted new ones! NGK Iridium IX CR9EIX 3521 No it hasn't and the down pipes are shot and there is a hole in it ... I'm sorry, I've only noticed after reading your message but I didn't realise this would effect things on the other side of the engine but stupid of me. The guy I got the bike off actually gave me a set of good condition used down pipes to fit but it looks a big job - this was obviously a known issue! I guess I better get around to fitting them! Chris
  5. Hi guys, thanks for all the advice. I am a bike beginner and so I've done what I wanted to attempt to do before coming on here and asking for more advice. So I've changed the spark plugs and replaced the air filter. I also purchased second hand coil off eBay but bizzarly the cap didn't fit despite being off the same bike - the cap was longer and had a wider rubber plug at the top. Consequently, I've switched the coil and plugs but have the same caps and lead. It was a hell of a mission to get it going this morning, but I think the battery was low which didn't help, I ended up bump starting it. It coughed and spluttered but came to life. Drove it around the block a good few times and it was much better - once at temperature it was idling ok but it was still bumping and coughing in lower gears, 1st 2nd. All my power was back but it just felt it wasn't idling smoothly. I even had a backfire with quite a bit of popping and bumping going on in the engine. Certainly wasn't a smooth enjoyable ride, felt like cutting out at any second but it didn't. Once it was home and hot it idled just fine in neutral. Does it sound like carbs or something else still?? I admit, it scares me to death just looking at them!! One random question. When pulling the fuel tank on and off I had a hell of a job! I presumed the fuel knob thingy, off, on reserve, would lock the fuel from coming out but it doesn't! It the valve broke or do I need to do something else? I'll start from cold in another hour and report back but any thoughts welcome!
  6. Oooooopppps They unscrew off to reveal the threaded end
  7. I went to a v reputable bike dealer today and payed just short of £40 for 4x spark plugs for my zxr400 L9 2003 model. They sold me NGK Iridium IX CR9EIX 3521 The old plugs have a thin small thread on the top and the cap pushed down onto it. These new ones have a much wider top and the cap doesn't seem to be locking down onto it properly. The other ones, the little threaded section really sticks into the cap and makes a good contact, these don't seem to lock down properly - I expect the metal is touching but not locking together. What confused me however is that other sellers are selling the same plugs for this model of bike! I also changed the cap, ht lead and coil and they are the same type on both the old and new one so clearly the cap is standard as well! I'm a bike beginner... Am I missing something. There seems like a threaded hole to screw in that little extra part on the new spark plug but it seems part of the old one!
  8. The coils are the leads connected to the spark plugs right?? What's the pickup?
  9. Guys, I`ve bought a ZXR400 and it was apparently stood for 9 months unused. I changed the break pads, oil, oil filter... took it to the MOT centre and it passed with flying colours. I spent the afternoon riding it around. Next day, came to start it and it just stalled and wouldn`t idle! The bike now won`t idle, hard to start. When it does start I can rev it high but the rev counter doesnt seem to register correctly. There is no power - stick it in first gear and it will ride but the revs stay low with very little power then it sort of comes around and the revs increase but it splutters and coughs. There are 4 down pipes and the middle two get hot but the outer too are cold. It clearly isn`t running on two cylinders but I`m just worried why this happened all of sudden after running OK the day before after sitting still for months. Any ideas? What would you do? Obviously I need to check the spark plugs but nothing will happen now until weekend and I`d appreciate your thoughts before I start fiddling! Chris
  10. EDIT: Just thinking - it was a good 20 minute ride to the MOT centre - bike was standing for 45-60 minutes for the MOT but rode OK once started after - but that was 60 minutes, much longer than the two times it has happened. It needs sorting though as I can`t ride it once I`ve turned the engine off!
  11. Hi guys I`ve got hold of a ZXR400 and just changed the break pads, oil, oil filter, coolant and today it passed its MOT. Not havin an MOT (and tax) until today, ive not rode it much but I did notice this a few nights ago. You can ride the bike just fine - I`ve just been out for 30 minutes. Stopped at lights, stopped tones of times due to traffic and even chucked it in neutral when the lights went red on me so I can have a relax. No problems. Got home, drove on the drive, parked up and turned the engine OFF. Decided to ride it into the garage and EVERY TIME, no matter how careful I was with the clutch or how much throttle I gave it, it stalled in first setting off. The exact same happend the other night, rode fine, turned engine off, had a 30 minute stop with the engine off (!!) got back on it and it did the same stalling in first. I can only presume it has something to do with the bike being hot but why on earth is it only happening when I turn the engine fully off and back on and the same isn`t happening when I top and start or move from neutral???? I`m confused. Ay thoughts appreciated. Chris
  12. Guys, do you go for a flip front helmet? If so, why and if not why not? Is it something you look for when buying a helmet. I've ridden 125cc for 6 years and never owned one but I've just done and passed DAS and getting a new bike and fancy one. I liked the flip front option when doing my lessons but then maybe that's because I was stopping and talking a lot and in normal riding that isn't needed.
  13. Ahhh! I'd forgot I had posted this thread. I did ask the bike examiner and he agreed I should send it off so I've now got it at home. You can't be serious ??? There must be some other electronic proof that I passed the exam???? I guess now, I have to send it off signed for and tracked to ensure it arrives!! Now I'm worried. I also didn't realise it was free to amend your address. I should have just let him send it off and put parents address on like was advised. I could have them freely changed my address to the new address! Chris
  14. I agree with the previous post about going for a run out in a car or even the bus and actually think about what's going on! As a young passenger most will just tune off during the journey. Just watch what's happening, at lights, crossings, junctions. Stand at junctions and watch. Is there a filter light, where would you position yourself. It wouldn't do any harm before you do your CBT.
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