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Workshop => Engine and Bottom End => Topic started by: jimi on December 27, 2015, 12:40:42 PM

Title: CR 250 ignition...Why?
Post by: jimi on December 27, 2015, 12:40:42 PM: Why and what will it improve? I see a lot of TRX250Rs are running the CR 250 ignition.
do I need one if Im building a MX TRX?
Title: CR 250 ignition...Why?
Post by: jcs003 on December 27, 2015, 01:46:02 PM: reliability and improved performance. the improved throttle response and easy starting.

john
Title: CR 250 ignition...Why?
Post by: thesmith87250r on December 27, 2015, 01:53:37 PM: You will lose your headlight with a cr ignition. Your current jetting will go up 2 on the main jet and 1 on the pilot , but if your gonna go with a 310 from esr ask Eddie where to start with jetting for what you are building. The cr ignition is a great improvement .
Title: CR 250 ignition...Why?
Post by: Saber569r on December 27, 2015, 03:01:40 PM: Revs way faster, eliminates kick back. Fly wheel is half the size.
Title: CR 250 ignition...Why?
Post by: jimi on December 27, 2015, 05:21:09 PM: ok. i will look for a CR ign. thanks all
Title: CR 250 ignition...Why?
Post by: Pumashine on December 27, 2015, 05:30:53 PM: Quote from: Saber569r;62416
Revs way faster, eliminates kick back. Fly wheel is half the size.
This is why we use it on the big bores. If you are running a 250 you don't need it like we do!!!
Title: CR 250 ignition...Why?
Post by: jimi on December 27, 2015, 07:07:21 PM: i plan on getting a ESR 310
Title: CR 250 ignition...Why?
Post by: klotzkid1992 on December 27, 2015, 09:07:13 PM: exactly what parts do we need to get to do this upgrade?
Title: CR 250 ignition...Why?
Post by: hickwheeler on December 27, 2015, 09:09:03 PM: Stator, flywheel, cdi and adaptor
Title: CR 250 ignition...Why?
Post by: Saber569r on December 27, 2015, 09:11:03 PM: Quote from: klotzkid1992;62434
exactly what parts do we need to get to do this upgrade?

You have to get the adapter plate from esr. Besides that the one I just installed was bolt on.
Title: CR 250 ignition...Why?
Post by: klotzkid1992 on December 27, 2015, 09:23:47 PM: thanks guys! i have a 86trx with a 85atc 250r motor in it. I am planning on getting the ESR plate, stator,flywheel, and cdi. should i get all the parts from the 2001 model cr250? is ebay my best bet for finding all components?
Title: CR 250 ignition...Why?
Post by: Saber569r on December 27, 2015, 09:30:36 PM: Quote from: klotzkid1992;62439
thanks guys! i have a 86trx with a 85atc 250r motor in it. I am planning on getting the ESR plate, stator,flywheel, and cdi. should i get all the parts from the 2001 model cr250? is ebay my best bet for finding all components?
The 01 is discontinued. Most do the 02-08 now. You might find one on eBay but probably be costly.
Title: CR 250 ignition...Why?
Post by: klotzkid1992 on December 27, 2015, 09:45:54 PM: I found some used 01 ignitions on ebay about $600. will the 02-08 bolt up to the 85 motor?
Title: CR 250 ignition...Why?
Post by: Skeans1 on December 27, 2015, 09:50:24 PM: Quote from: klotzkid1992;62442
I found some used 01 ignitions on ebay about $600. will the 02-08 bolt up to the 85 motor?

with the correct adapter yes
Title: CR 250 ignition...Why?
Post by: 2ndmoto on December 28, 2015, 01:51:35 AM: Curious if anyone has dyno charts of stock vs cr ignition. I am not 100% sold. I need to replace some aging components on a build and it would be nice to have some more info to look at.
Title: CR 250 ignition...Why?
Post by: Saber569r on December 28, 2015, 11:20:56 AM: Never seen one but you can feel the difference. Think it's more about getting rid of kick back as pumashine mentioned. Smaller fly wheel lets it rev faster. Nice upgrade on a dune or drag motor.