Looks nice but runs like a dog...

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MillaMeter
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My Bike: K ZXR400 L2, H Rebel 125
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Looks nice but runs like a dog...

Post by MillaMeter »

Hi,

As you all know I've overhauled my 1992 ZXR400.

I'm having a few issues with the engine. The bike will not go over 10,000rpm, sometimes holds an idle sometimes not, and i'm only getting 120 miles to tank. When I rebuilt the bike I changed everything over to uk specs loom,clock,cdi,lights,switchgear etc...

The carbs are still the same when I took the bike apart, infact I didn't touch them aprt from a quite balance. I'm starting to wonder if the plugs are duff or the coil caps that I added are fooked or not really good for high rpm.

Any ideas?

Regards

Rich
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CaNsA
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Re: Looks nice but runs like a dog...

Post by CaNsA »

What CDI/ECU u got laddio?

Im selling a Denso M Full Power jobby on ebay at the moment.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... :MESELX:IT
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MillaMeter
L-plate hell
L-plate hell
Posts: 450
Joined: Wed Mar 12, 2008 12:37 am
My Bike: K ZXR400 L2, H Rebel 125
Location: Hemel Hempstead, Hertfordshire
Contact:

Re: Looks nice but runs like a dog...

Post by MillaMeter »

CaNsA wrote:What CDI/ECU u got laddio?

Im selling a Denso M Full Power jobby on ebay at the moment.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... :MESELX:IT
Hi,

Oh yeah thats the exact CDI I got and was running perfect before the rebuild so I cant see it being that.

I've bought some new plugs to see if that makes any difference.

Rich
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MillaMeter's ZXR400 Restoration Click HERE!
ZXR400s 4eva! I miss mine already :(
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U_h0rnet5
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Re: Looks nice but runs like a dog...

Post by U_h0rnet5 »

There might be some sort of restrictor on the back of the clocks a small black box. I'm sure I heard something about that.

I would have said it might have been the CDI unit! I only normally get about that out of a tank and that is when its running rich.
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RedexRobB
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Re: Looks nice but runs like a dog...

Post by RedexRobB »

With the UK CDI it wouldnt restrict to 10k as they havent got them. It usually the CDI's from other markets.
kawasakisean
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Re: Looks nice but runs like a dog...

Post by kawasakisean »

iddleing problems usually point to air leaks in the carburation system or carbs need cleaning properly, 10,000 rpm max may also point to this or a blocked air filter, if not that its restricted somehow, my bike is a uk model so never had any restricter on it revs til the limmiter comes in winks
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