TRX250R.ORG

Workshop => Engine and Bottom End => Topic started by: huntertools on June 17, 2016, 08:00:42 PM

Title: New ESR motor running great
Post by: huntertools on June 17, 2016, 08:00:42 PM
Just got my new motor in and live it.
New 310 ESR cylinder ported by Neil (thanks Neil)
New ESR cases, clutch cover, stator cover
New Hot Rod crank and seals and bearings.
Started out jetting fat with all new electrical except CDI that was my spare Ricks cdi
. Motor started up second kick and sounded good. Did about three heat cycles then rode around the yard maybe quarter throttle for five minutes. Was running a little hot so checked everything and found no problems. Made several more runs like this and was still too hot for my liking 200F. Didn't feel like it had as much bottom end power but I blamed this on the jetting. Got a OEM cdi and it made a huge difference. Temp dropped to 180 and pulls hard with plenty of bottom end power. Almost like a four stroke. Sure I will be going up on my gearing soon.
Thanks again Neil for an awesome port job. Better than I expected.
(http://i358.photobucket.com/albums/oo26/allen-campbell1/Mobile%20Uploads/image_zpsilxgltax.jpeg) (http://s358.photobucket.com/user/allen-campbell1/media/Mobile%20Uploads/image_zpsilxgltax.jpeg.html)
Title: New ESR motor running great
Post by: StrokedAZ on June 17, 2016, 08:40:19 PM
That looks sweet.  Have fun ripping it

Sent from my Galaxy S5
Title: New ESR motor running great
Post by: havinnoj on June 18, 2016, 12:17:29 AM
Good to hear it's running well!  Love how the ESR stator cover has recessed bolt holes.  How does that stick-on temp gauge work?
Title: New ESR motor running great
Post by: huntertools on June 18, 2016, 12:25:17 AM
When cold all black. As area heats up each progression turns green to yellow. Easy to read
Title: New ESR motor running great
Post by: jcs003 on June 18, 2016, 06:58:40 AM
Do you have an in-line water temp gauge?

John
Title: New ESR motor running great
Post by: huntertools on June 18, 2016, 08:49:23 AM
Quote from: jcs003;68282
Do you have an in-line water temp gauge?

John
Just have a stick on temp sticker. I know it's not dead on but it gets me in the ball park. Used them on several applications and they seem to be close.
Title: New ESR motor running great
Post by: jfwyatt1 on June 18, 2016, 03:41:31 PM
i see about a 20-30 degree varience between my tape guage and the inline temp gauge. tape being higher.  looks real nice my son and i love our 310.
Title: New ESR motor running great
Post by: mwiley on June 18, 2016, 09:11:12 PM
I am looking at doing almost the exact same build but maybe a little larger cc. Can you give us a round about cost for everything with the cases, crank and any extras. About how long did all the work take to get done? If you don't want to say publicly, can you just PM me.

Thanks,
Mike
Title: New ESR motor running great
Post by: huntertools on June 18, 2016, 11:22:04 PM
Quote from: mwiley;68295
I am looking at doing almost the exact same build but maybe a little larger cc. Can you give us a round about cost for everything with the cases, crank and any extras. About how long did all the work take to get done? If you don't want to say publicly, can you just PM me.

Thanks,
Mike

PM sent.
Title: New ESR motor running great
Post by: F-Red on June 19, 2016, 07:42:19 AM
Very nice. Enjoy.
Title: New ESR motor running great
Post by: rablack21 on June 20, 2016, 07:54:45 AM
The motor looks sharp. Glad you are enjoying. Yep, the ESR 310 is the best bang for the buck when it comes to bumping up the power over stock. Great platform to build off of.
Title: New ESR motor running great
Post by: etccb on June 20, 2016, 10:22:21 AM
That does look very good. Very clean but bold look.
Title: New ESR motor running great
Post by: Sand_Blaster on June 21, 2016, 03:36:03 PM
Very nice motor. So happy eddies cases have no issues, & we can keep our 250rs going even when Honda refuses to keep making parts.
Title: New ESR motor running great
Post by: 86 4trax on July 07, 2016, 02:16:18 AM
Not to derail the thread, but I recently came across ESR cases and I was wondering if the ESR standard cases were compatible with all OEM Honda parts.If not,is there any alternative other than used OEM?
Title: New ESR motor running great
Post by: huntertools on July 07, 2016, 05:07:36 AM
All transmission, clutch side components and counter balancer are OEM parts. Crank is a Hot Rods. Cylinder, clutch cover and stator cover are ESR but OEM will bolt right up. No issues what so ever putting this motor together. Would highly recommend to anyone needing cases.
Title: New ESR motor running great
Post by: 86 4trax on July 07, 2016, 06:00:14 AM
Quote from: huntertools;68595
All transmission, clutch side components and counter balancer are OEM parts. Crank is a Hot Rods. Cylinder, clutch cover and stator cover are ESR but OEM will bolt right up. No issues what so ever putting this motor together. Would highly recommend to anyone needing cases.
Much appreciated.
Title: New ESR motor running great
Post by: C-Leigh Racing on July 07, 2016, 10:08:45 AM
Quote from: 86 4trax;68591
Not to derail the thread, but I recently came across ESR cases and I was wondering if the ESR standard cases were compatible with all OEM Honda parts.If not,is there any alternative other than used OEM?

The only difference between the OEM Honda cases & the ESR cases, you'll have to use both ESR case halfs to build the engine, because they will not match up to a used OEM TRX250R case half.
Machining to the center of the ESR cases is a bit different & they wont match up to the OEM case halfs.
Really though that is a good thing, because you'll have all brand new cases to build with & you'll see they are beefed up in areas where the OEMs were prone to crack.
Neil