Changing plugs + air filter, should I do anything else while the bike is in pieces? - MVAgusta.net
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post #1 of 24 (permalink) Old 09-19-2006, 11:43 AM Thread Starter
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Changing plugs + air filter, should I do anything else while the bike is in pieces?

This weekend I'm putting in a BMC filter and a set of Denso IU27 Iridiums that I bought for my ZX-7R before it was stolen.

I've got a new set of airbox wellnuts, and I've read up on how to properly remove the fuel line fittings without cracking them when removing the tank.

Is there anything else I should do while I have the airbox and tank off?

Thanks!
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post #2 of 24 (permalink) Old 09-19-2006, 12:21 PM
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Check those Denso's. As we've said repeatedly the engine designer cautions against their use but they ARE used in Italy by some owners. If you insist on using them make sure they have the SAE terminal nuts threaded on. See the faq for spark plug for details if you don't already know them.

If you were going to flush coolant with same or other this would be a good time.
Also a good time to clean up the upper part of the engine just below the cam cover of the grime that accumulates there.
Check the rubberband ties for cracking and replace as needed
Check the breather hose to airbox for cracking
Clean up rear of engine under the tank between swingarm and crankcase..also inner frame plates if you are so inclined.

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post #3 of 24 (permalink) Old 09-19-2006, 02:05 PM
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Quote:
Originally Posted by psperl
This weekend I'm putting in a BMC filter and a set of Denso IU27 Iridiums that I bought for my ZX-7R before it was stolen.

I've got a new set of airbox wellnuts, and I've read up on how to properly remove the fuel line fittings without cracking them when removing the tank.

Is there anything else I should do while I have the airbox and tank off?

Thanks!
Andrea Goggi did say Denso's do not fit well with the mV's combustion shape, torque them up as well, if they come lose they destory the head
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post #4 of 24 (permalink) Old 09-19-2006, 02:16 PM Thread Starter
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Well, I know Andrea Goggi said that, but they are technically better plugs than the NGK equivalents because of the smaller tip, and I don't want to waste $50 bucks.

The italian guys use them as per the FAQ, and emotouk told me they sell them and they work just fine, so I'm going for it.

What's the worst that could happen? Loss of hp? (which would be pretty bad)
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post #5 of 24 (permalink) Old 09-20-2006, 09:49 PM
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Question

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When I do my plugs, which should be soon I'd like to go iridium myself, but am a little unsure as to which ones to go with for the F4 1000. Maybe someone can clear this up for me, but from what I read at FAQ I believe it's NGK's CR9-EIX plug which is right for the bike. No?
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post #6 of 24 (permalink) Old 09-20-2006, 11:32 PM Thread Starter
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Quote:
Originally Posted by Paul Kelly
Guy's
When I do my plugs, which should be soon I'd like to go iridium myself, but am a little unsure as to which ones to go with for the F4 1000. Maybe someone can clear this up for me, but from what I read at FAQ I believe it's NGK's CR9-EIX plug which is right for the bike. No?
yes, that's the right spark plug.

http://mvfaq.blogspot.com/2005/09/sp...-fitments.html
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post #7 of 24 (permalink) Old 09-21-2006, 05:14 AM
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Quote:
Originally Posted by JamesC
Check those Denso's. As we've said repeatedly the engine designer cautions against their use ...
James, Why do they advise against the Iridium plugs? I don't recall hearing about that.

BTW, I had them installed in my F4 at the 600 mile service to try and alleviate the low-speed stalling when coming to a stop. I've now got about 1350 miles, and up until 2 days ago it was fine. Then, Tuesday evening it died on me as I approached a stop light when I pulled the clutch in going from 3rd to 2nd gear. I had the tech do the TPS and CO changes also at the time. Is there anything else that can be done to eliminate the stalling completely? Thanks.

Ciao,
John
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post #8 of 24 (permalink) Old 09-21-2006, 10:21 AM
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He cautions against Denso plugs not iridium. The highly recommended CR9EIX are irigidum NGK.

What eprom is in the bike and what other changes?

JamesC

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post #9 of 24 (permalink) Old 09-21-2006, 05:25 PM
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Thanks James. I was hoping you could confirm this for me Thanks. On a related note are you familiar with the ngk IRIDIUM spark plugs 3521? Someone's selling them on the bay and is claiming there for the F4. Is it possible that he has a different part number for a similar or same plug? Both are from NGK and both a are iridium.
P.K.
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post #10 of 24 (permalink) Old 09-21-2006, 05:39 PM
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I didn't recognize that number but see that it's one in the same, NGK part number vs model ID I guess.

NGK Part # 3521 Category: Spark Plug {#CR9EIX} **Sold in packs of 4**

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