1984 CR125 Rebuild

blbiker56 · 04-30-2012, 09:46 AM

Well it seems like im sucked into the bikes produced during the year of 1984 because I started another project bike which is a little brother to the 84 xr350 that My father and i finished recently.

xr350 1984 rebuild link- http://advrider.com/forums/showthread.php?t=762440

But i picked up an awesome deal, found a guy up in Denver selling a 1984 cr125. The bike was apparently rebuilt about a year and a half ago, but it seems like everything was not gone through. The bike was not running when we picked it up but seemed to be in pretty good condition. We only paid $250 for the whole bike which is amazing considering that it only needed some time to get it running again.

will post pics later today, but wanted to get the post for rebuild started. Anyone have any experience with these older 2 stroke bikes?

Shocktower · 04-30-2012, 03:08 PM

Welcome to the Smokey room great buy

bubba289 · 05-01-2012, 08:20 AM

I'm looking to do the same thing right now but with a 250 in the 81-86 range. in for pointers!

blbiker56 · 05-01-2012, 08:43 AM

Quote:

Originally Posted by bubba289

I'm looking to do the same thing right now but with a 250 in the 81-86 range. in for pointers!

well if you go buy a bike and it doesnt run i would definitely ask the seller if you can pull the cylinder to see if there is any damage to the crank or the piston cause it can get pretty pricey to fix that stuff if your trying to keep your build cheap, and parts can sometimes be hard to find. so bring some tools but the two strokes for most brands in this year range are extremely easy to get to and remove.

bubba289 · 05-01-2012, 03:30 PM

Quote:

Originally Posted by blbiker56

well if you go buy a bike and it doesnt run i would definitely ask the seller if you can pull the cylinder to see if there is any damage to the crank or the piston cause it can get pretty pricey to fix that stuff if your trying to keep your build cheap, and parts can sometimes be hard to find. so bring some tools but the two strokes for most brands in this year range are extremely easy to get to and remove.

thanks for the advice. finding the right bike on the cheap is proving to be a challenge so far. i guess the early 80's bikes are old enough to be considered 'vintage' now because it seems like they go for as much as a mid to late 90's bike if they run. but the majority of them either don't run, are missing parts, plastic is broken or badly sun-faded, etc, etc.

i'm scouring craigslist like a mad man lately though lol

pvangel · 05-02-2012, 12:28 PM

If you are going to do it you have to do the crank and seals, the seals will leak if not done and mess up the whole bottom end. The other issue with the Hondas is the waterpump cavity because the cases are magnesium they seem to "rot" from the antifreeze and just start to crumble.

I just re did this 89,

Last month at Budds Creek,

It's a great bike!

fire1998 · 09-11-2012, 11:42 PM

Oops sorry

04-30-2012, 09:46 AM	#1
blbiker56 ^OP Adventurer Joined: Jan 2009 Location: Rocky Mountains Oddometer: 47	1984 CR125 Rebuild Well it seems like im sucked into the bikes produced during the year of 1984 because I started another project bike which is a little brother to the 84 xr350 that My father and i finished recently. xr350 1984 rebuild link- http://advrider.com/forums/showthread.php?t=762440 But i picked up an awesome deal, found a guy up in Denver selling a 1984 cr125. The bike was apparently rebuilt about a year and a half ago, but it seems like everything was not gone through. The bike was not running when we picked it up but seemed to be in pretty good condition. We only paid $250 for the whole bike which is amazing considering that it only needed some time to get it running again. will post pics later today, but wanted to get the post for rebuild started. Anyone have any experience with these older 2 stroke bikes?

04-30-2012, 03:08 PM	#2
Shocktower Beastly Adventurer Joined: Jul 2009 Location: Oregon City Orygun Oddometer: 8,234	Welcome to the Smokey room great buy __________________ Alexa Drew Nov 9 1995- Oct 28th 2004 Miss you baby '08 KTM 530 EXC 79 RD 400 Daytona

09-11-2012, 11:42 PM	#7
fire1998 Adventurer Joined: Feb 2007 Location: Cheyenne, Wyoming Oddometer: 57	Best rattlecan frame paint and primer Oops sorry

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05-01-2012, 08:20 AM	#3
bubba289 Adventurer Joined: Apr 2012 Oddometer: 17	I'm looking to do the same thing right now but with a 250 in the 81-86 range. in for pointers!

05-02-2012, 12:28 PM	#6
pvangel Team AARP Joined: Sep 2005 Location: South Salem, NY Oddometer: 1,466	If you are going to do it you have to do the crank and seals, the seals will leak if not done and mess up the whole bottom end. The other issue with the Hondas is the waterpump cavity because the cases are magnesium they seem to "rot" from the antifreeze and just start to crumble. I just re did this 89, Last month at Budds Creek, It's a great bike!