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doesn't like hot starts?

Posted: Wed Jul 13, 2011 7:02 pm
by R P Corse
hey guys, been speaking to the owner about his bike ZXR 400 H2 - im genuinely interested in it but he sent me this message when i asked him about it

"Only trouble I've got with the bike is it's got a bit of an issue with hot starting, when the temp gets right up it can sometimes be a bit of a pig to start again. Think a lot of zxr's have this problem, think it might just want a new battery though, starts fine with a bump..."

can anyone help me out what could be the real problem with it??

Re: doesn't like hot starts?

Posted: Wed Jul 13, 2011 8:23 pm
by Tirpitz
We all wish we knew :smt012 It's just one of those things, a lot of people do have hot starting issues and there doesn't seem to be any common denominator.

Re: doesn't like hot starts?

Posted: Wed Jul 13, 2011 8:30 pm
by R P Corse
thanks for the reply mate, long as it isn't just the one then! puts me at ease a bit more!

Re: doesn't like hot starts?

Posted: Wed Jul 13, 2011 11:22 pm
by Tirpitz
No, I shouldn't worry on that account. However, if the battery is tired it's worth noting that these bikes are susceptible to poor starting unless the battery is tip-top. It's a relatively small battery for the size / compression of the engine and unless it is well charged and strong you will get problems. So if the battery is suspect it would help to change it.

Re: doesn't like hot starts?

Posted: Wed Jul 13, 2011 11:52 pm
by CaNsA
I used to get this then i ran 2 or 3 tanks of posh premium tescos finest fuel through it.
Also, hold the starter button and turn the key off then on.

hth

Re: doesn't like hot starts?

Posted: Thu Jul 14, 2011 10:27 am
by R P Corse
nice one cheers guys! haven't owned a zxr400 for 3 nearly 4 years so forgotten a fair bit about it lol what battery should i be looking at and how much?

Re: doesn't like hot starts?

Posted: Thu Jul 14, 2011 11:47 am
by Tirpitz
http://www.wemoto.com/bikes/Kawasaki/ZX ... ery_Yuasa/

Not saying that's the cheapest you'll get it but Wemoto won't be undercut by much, if at all.

Re: doesn't like hot starts?

Posted: Thu Jul 14, 2011 12:02 pm
by Neosophist
Tirpitz wrote:We all wish we knew :smt012 It's just one of those things, a lot of people do have hot starting issues and there doesn't seem to be any common denominator.
I was speaking to Zimm about this one a while ago.

I believe theres a relay in the ignition box that alters the ignition timing when starting the engine.

If this relay packs up it makes the bike difficult to start.

I had a fusebox where this relay was constantly clicking and it was a pain to start.. I replaced the fusebox and it was fine after that...

Re: doesn't like hot starts?

Posted: Sat Jul 16, 2011 7:20 am
by masterofinsanity
check out this thread viewtopic.php?f=166&t=3391

Re: doesn't like hot starts?

Posted: Sun Jul 17, 2011 11:20 am
by R P Corse
thanks for that guys, well so far, the battery is in need of a change - like i said, but hey, i can get them from halfords cheap :)

but she splutters a little when idling, however she died on me last night when she got a bit too hot after filling up, went to start and didn't want to know, had to wait a few mins before trying start her again, jumped straight to life afterwards, so may look at getting a new fuse box!

thanks for that link MoI - will fill that out now, has anyone actually boiled it down to a key problem yet?