400ex CDI and Coil??? - Honda ATV Forum
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post #1 of 12 (permalink) Old 04-21-2010, 09:01 PM Thread Starter
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400ex CDI and Coil???

I was wondering if the kits on Ebay are worth buying and if they actually notice power gains?
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post #2 of 12 (permalink) Old 04-21-2010, 09:08 PM
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Welcome to the site!

Post a link to the product you are speaking of. Some are good and some are junk.

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post #3 of 12 (permalink) Old 04-21-2010, 09:12 PM
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Welcome to the forums.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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post #4 of 12 (permalink) Old 04-21-2010, 09:16 PM
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I agree with red. Welcome to the forums

My Rides
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post #5 of 12 (permalink) Old 04-21-2010, 09:42 PM Thread Starter
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AMR S2 REV BOX COIL COMB0 HONDA TRX 400EX 400 CDI 99-04 : eBay Motors (item 200461285298 end time May-13-10 22:38:22 PDT)

I'm trying 2 get the most out of my 400ex without internal mods, any advice would be appreciated.

-Ian
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post #6 of 12 (permalink) Old 04-22-2010, 07:53 AM
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I'm going to say that those are legit. They don't make any outrageous claim, they say it does exactly what it should. I would not hesitate to buy from them.

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post #7 of 12 (permalink) Old 04-22-2010, 08:47 AM
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ive got an amr cdi box.to me it seemed like shift points were a little snappier and i could notice but not much the higher rev limit.

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mods-hmf full exhaust,jetted,uni air filter no lid,protaper bars,razr rear tires,amr cdi box,webcams camshaft and hardwelded rockers.

mods to come-powroll big bore kit,razr front tires,steering stabilizer,nerfs
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post #8 of 12 (permalink) Old 04-22-2010, 12:50 PM Thread Starter
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So all in all, are they worth buying outside of a full pipe/air filter?
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post #9 of 12 (permalink) Old 04-22-2010, 01:55 PM
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The cdi is an upgrade that responds extremely well to a new exhaust, intake, and cam. But you will notice a difference over stock.

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post #10 of 12 (permalink) Old 04-22-2010, 06:38 PM Thread Starter
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What about the coil itself? Any1 have any input or experience on that?
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