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View Full Version : Oil cooled 300ex


2001300exguy
07-21-2004, 10:40 PM
Just wondering if its possible to add an oil cooler to a 2001 300ex
thumperex
07-21-2004, 11:30 PM
Yes you can jaggs makes a replacement oil filter cover then you just have to find a oil cooler.
dirtmomma
07-22-2004, 10:02 AM
Yep gonna put one on mine, already bought it I think it's homeade w/ all the fittings already there so it should be easy!!
2001300exguy
07-22-2004, 10:28 AM
where can i find the oil filter cover at
thumperex
07-22-2004, 05:38 PM
I got mine from jaggs oil coolers, It cost me 65.00 dollars . stay away from the oil coolers that tie into the oil pasage lines not good set up.
Dunlap
07-22-2004, 07:43 PM
Originally posted by thumperex
I got mine from jaggs oil coolers, It cost me 65.00 dollars . stay away from the oil coolers that tie into the oil pasage lines not good set up.

Wrong, all Honda's have a problem with the facing flaking off the rocker arms and taking out the cam. Sending the 40 to 50 degree cooler oil in to the head from the outter oil line is the best thing you can do for a 250x,300ex,350x or the 400ex. Also this is the hottest place on the air cooled motor and the highest wear area as far as cams,rockers,valves ect. I have raced and built these motors for 16 years and putting an in line oil cooler in the outter oil line before it goes in to the head works 10 time better than cooling off you oil filter.It takes about 15 min. to instale one and it doubles the life time of the oil.
2001300exguy
07-22-2004, 08:24 PM
How do you do that?
Dunlap
07-23-2004, 09:20 AM
Originally posted by 2001300exguy
How do you do that?

You buy one of mine and it comes with the directions:)
300exOH
07-23-2004, 09:31 AM
Mickey- Does the oil cooler for the 300ex increase the time it takes for the quad to warm up during startup. My 300 is really cold blooded as is and I'm worried an oil cooler will make it worse.

Also does your kit use hose clamps to attach to the oil line or compression fittings?

Thanks
Scott
bradley300
07-23-2004, 09:49 AM
mickey, i was wondering if you sell the fittings for the oil cooler like you have on benson's 345ex, i like how it dosent look like you had to cut any lines and is a totally bolt on set up. thanks
Dunlap
07-23-2004, 10:45 AM
As far as making it warm up slower, no it won't. Turn you fuel screw out 1 turn more and that will help the cold blooded symptons.Yes they use hose clamps.

The fittings Benson put on are out of my warrior kit, but you would have to drill and tap the head and clutch cover like my 400ex kit.
300exOH
07-23-2004, 11:55 AM
Originally posted by Mickey Dunlap
As far as making it warm up slower, no it won't. Turn you fuel screw out 1 turn more and that will help the cold blooded symptons.Yes they use hose clamps.

The fittings Benson put on are out of my warrior kit, but you would have to drill and tap the head and clutch cover like my 400ex kit.

Thanks for the info. I'll be ordering my kit soon.:devil:
2001300exguy
07-23-2004, 01:21 PM
Does the 400ex kit also work for a 300ex
sparkplug300ex
07-26-2004, 03:42 PM
Originally posted by Mickey Dunlap
Wrong, all Honda's have a problem with the facing flaking off the rocker arms and taking out the cam. Sending the 40 to 50 degree cooler oil in to the head from the outter oil line is the best thing you can do for a 250x,300ex,350x or the 400ex. Also this is the hottest place on the air cooled motor and the highest wear area as far as cams,rockers,valves ect. I have raced and built these motors for 16 years and putting an in line oil cooler in the outter oil line before it goes in to the head works 10 time better than cooling off you oil filter.It takes about 15 min. to instale one and it doubles the life time of the oil.

do you have a web site, how can i get an oil cooler from you
Dunlap
07-26-2004, 04:12 PM
814-842-6159 no web-site.
honda250xrider
07-26-2004, 05:28 PM
i just got your oil cooler mickey, good directions and only take a few mins. to hook up great product!
plkmonster2
07-27-2004, 11:06 AM
Mickey, do you have a price on your cooler? Thanks!
JDiablo
07-27-2004, 11:23 AM
Originally posted by honda250xrider
i just got your oil cooler mickey, good directions and only take a few mins. to hook up great product!

hey you have a picture?
2001300exguy
07-31-2004, 06:30 PM
yea id like to see a picture too
honda250xrider
07-31-2004, 09:01 PM
dirtmomma has a few pics of the oil cooler installed if she would be so kind to post them that would be great
dirtmomma
08-01-2004, 10:09 AM
Originally posted by honda250xrider
dirtmomma has a few pics of the oil cooler installed if she would be so kind to post them that would be great

Sure I will, let me go find them ;)
dirtmomma
08-01-2004, 10:22 AM
Originally posted by honda250xrider
dirtmomma has a few pics of the oil cooler installed if she would be so kind to post them that would be great

Sure I will, let me go find them ;)

Here we go............
http://www.imagestation.com/picture/sraid132/pf168a95af5bd3c8a421aa0293b4deaa0/f79cc8e0.jpg
dirtmomma
08-01-2004, 10:25 AM
Originally posted by honda250xrider
dirtmomma has a few pics of the oil cooler installed if she would be so kind to post them that would be great

Sure I will, let me go find them ;)

Here we go............
http://www.imagestation.com/picture/sraid132/pf168a95af5bd3c8a421aa0293b4deaa0/f79cc8e0.jpg

another
http://www.imagestation.com/picture/sraid132/p9e9e38c371f7b836b4d5ae198864bdcc/f79cc8e6.jpg