[FCR for an LTZ400] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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FCR for an LTZ400
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Posted by: suzukiray

Can anyone tell me which bike comes with an FCR carb that has a TPS wire & will work directly on an 05 LTZ? Thanks, Ray.

Posted by: redrunner

Hey guy I saw your post over on the other forum..yeah like he said you don't use it anyway. The ones off a YFZ seem to be pretty popular that's what I have.
Go over to YFZcentral and check there and ebay...

Posted by: montycarlo

quote:
Originally posted by redrunner
Hey guy I saw your post over on the other forum..yeah like he said you don't use it anyway.

Why wouldn't you use the throttle position sensor if you had a carb in hand that was equipped with a TPS and a quad that was wired for it? Sorry I'm not a YFZ Central goer (mostly cause no YFZ) can you give me quick insight?

Posted by: onefastkawie

i might have one for sale it is a fcr39 . the tps is not compatible with the z 400 . yuo just disconnect them . i would part with mine for 300 dollars . included would be a yfy thumb throttle and a new cable . and ncqy needle and adjsutable fuel screw .thats everything you need to get it running .

Posted by: montycarlo

quote:
Originally posted by onefastkawie
the tps is not compatible with the z 400

Is the connector just different? As far as I know a TPS is a TPS & should have 3 circiuts- signal volts, reference volts, & ground.

Posted by: onefastkawie

that may be the case , but you have to remember the carb is a lot bigger than the 37 mm carb that came on the bike and now you have a accelerator pump which squirts fuel into the cylinder the stock one doiesnt , so the z computer wouldnt read what the yfz carb is telling it . + there is no advanatge to using the tps performance wise

Posted by: montycarlo

Not trying to argue with you onefastkawie....

I think we'll all be smarter if we get this all figured out!

In regards to the new features of the 2005 Z400- Taken from the Suzuki website:

quote:
Larger 37mm carburetor with throttle position sensor - ignition timing is determined by throttle opening for improved engine response, especially at high rpm

Someday when I put a bigger jug on and need more carburetor and look for a YFZ carb - I think I'll hook up the TPS ASSUMING I still have the stock CDI.

Agree/disagree?

Posted by: redrunner

Read this...some info for you. I have been running mine for a year w/o TPS it really does not do anything. Part of the reason you get rid of the stock carb.
http://www.z400central.com/invision...topic=66657&hl=