Author Topic: 84 Honda CR 250 Modifications  (Read 34742 times)

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Offline crs-and-rms

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Re: 84 Honda CR 250 Modifications
« Reply #75 on: February 01, 2013, 08:21:53 pm »
sorry could not up load the pics

Offline Kenneth S (222)

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Re: 84 Honda CR 250 Modifications
« Reply #76 on: February 02, 2013, 06:18:17 am »
sorry could not up load the pics

Mate, if you want to email them to me I'll put them up for others reading this post, after I drool all over them first though :'(

Ken
« Last Edit: February 02, 2013, 07:39:02 am by KJ222 »
Kenneth S
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Heaven VMX Club - Racing No 222 - 79 CR250RZ - 84 CR250RE (Steam Train) - 89 CR250RK

Race Bike History
76 RM125A, 77 RM125B, 78 RM125C, RM400C, 79 CR250RZ, 80 YZ250G, 81 RM465X, 82-83 RM490 Frank Pons Special(Beetle's 81 Race Bike)

Offline crs-and-rms

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Re: 84 Honda CR 250 Modifications
« Reply #77 on: February 02, 2013, 07:57:22 am »
pm me your email and i will send them to you

Offline Hoony

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Re: 84 Honda CR 250 Modifications
« Reply #78 on: February 02, 2013, 08:15:57 am »
you can see his email link under his avatar
Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
1985 Honda CR500RF "Big Red"
1986 Honda CR250RG
2005 KTM 300EXC "The GruntMeister" ( I love that engine)

Offline crs-and-rms

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Re: 84 Honda CR 250 Modifications
« Reply #79 on: February 02, 2013, 01:09:08 pm »
pics sent

Offline Kenneth S (222)

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Re: 84 Honda CR 250 Modifications
« Reply #80 on: February 02, 2013, 09:09:11 pm »




It's amazing this thing runs at all!
« Last Edit: February 02, 2013, 09:11:41 pm by KJ222 »
Kenneth S
Go For It

Heaven VMX Club - Racing No 222 - 79 CR250RZ - 84 CR250RE (Steam Train) - 89 CR250RK

Race Bike History
76 RM125A, 77 RM125B, 78 RM125C, RM400C, 79 CR250RZ, 80 YZ250G, 81 RM465X, 82-83 RM490 Frank Pons Special(Beetle's 81 Race Bike)

Offline Hardo

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Re: 84 Honda CR 250 Modifications
« Reply #81 on: February 03, 2013, 12:10:19 am »



Ken - I just had a thought....

It actually appears that the hollowed out part of this has actually been filled with metal-set or some sort of epoxy...... I realised this looking at the new cover.

I would think that maybe this would actually restrict the flow a GREAT deal ...   ???

It would also rely quite heavily on the small gap between the inlet pipe on the top (from radiators) and the pump cavity.

Maybe, just maybe the pressure from the pump is actually back-flowing UP and into the supply (from radiators) line???? 


Buy that cover - and all will be good..... surely !    :-\

Offline Kenneth S (222)

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Re: 84 Honda CR 250 Modifications
« Reply #82 on: February 03, 2013, 06:45:55 am »
Thanks Hardo,
It is understandably not for sale, but...I am going to get the Dremel set out and practice some sculpting. You asked if it was the correct impeller. I don't know but this one is for sale on eBay listed as a genuine part. It appears to be similar but the blades seem longer and it has the nut. On the parts diagram there are 2 listed. One seems to have the nut, the other doesn't. If you can't find yours, I am hoping someone on this forum with this model can confirm what the correct impeller for this model should look like.


« Last Edit: February 03, 2013, 06:52:12 am by KJ222 »
Kenneth S
Go For It

Heaven VMX Club - Racing No 222 - 79 CR250RZ - 84 CR250RE (Steam Train) - 89 CR250RK

Race Bike History
76 RM125A, 77 RM125B, 78 RM125C, RM400C, 79 CR250RZ, 80 YZ250G, 81 RM465X, 82-83 RM490 Frank Pons Special(Beetle's 81 Race Bike)

Offline crs-and-rms

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Re: 84 Honda CR 250 Modifications
« Reply #83 on: February 03, 2013, 07:34:27 am »
the part number  for the re is 19215-ka3-710 i would remove all that old repair have it blasted to remove all the rot the use quick steel to repair it its more like puty and much better to shape than devcon or jb weld  then shape it when it s nice and hard .thats how i repaired mine i know its easy for me as i have the new one to guide me . i then remove the coolant and impelar cover after each ride ,bit of a pain but havent had to re do mine for three years


maico police

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Re: 84 Honda CR 250 Modifications
« Reply #85 on: February 03, 2013, 09:04:24 am »
If it is, I'd be buying it..... :D

Offline Ted

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Re: 84 Honda CR 250 Modifications
« Reply #86 on: February 03, 2013, 10:25:20 am »
300 pounds....WTF
81 YZ 465 H   77 RM 125 B

Offline gt96

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Re: 84 Honda CR 250 Modifications
« Reply #87 on: February 03, 2013, 10:32:32 am »
Looks like this bloke may have a similar problem........
http://www.dirtbikeworld.net/forum/showthread.php?p=1552833

Montynut

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Re: 84 Honda CR 250 Modifications
« Reply #88 on: February 03, 2013, 10:38:45 am »

Offline crs-and-rms

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Re: 84 Honda CR 250 Modifications
« Reply #89 on: February 03, 2013, 10:56:09 am »
this is the part number11340-ka4-740