RD125 Items to note on buying

miken5678

Active Member
I have asked the seller a few questions and my main concerns are the carbs and intakes being open to the elements.


Provided the motor isnt seized, not knowing much about these little guys, and having always wanted to get one up and running with a fairing. Is there any input from seasoned people to note what is really missing and concerns to note? I realize she is in rough shape so assuming 175-225? Any forewarnings are appreciated.


Mike
 

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Seeing that the carbs are missing its a good bet that the motor is locked up. Being that its a 2 stroke, it isnt as difficult to rebuild as a 4 stroke. I dont know how difficult parts are to come by for the 125. You could check out economycycle.com or hvccycle.com
I wouldnt pay more than 150 for that bike. Its mostly complete, aside from the carbs. Most other parts should be replaced or gone through anyways. If it has a title then even better.
 
They are a turd to tune, and stock will run about 65 on the flat with me (185 lbs) or 75 with my wife (115 lbs). Timing is mega touchy. The carbs have zero aftermarket so jetting is you and a drill bit. They are made by tk. They are hard to replace with anything else due to the mounting. They are fun. Parts are out there but harder to find than those of their bigger brothers. Hvc Carries very little. Most parts come from over seas. Took me and a buddy 2 years to get one going because they are a pain in the ass. Worth it, but they come with headaches.
 
got my reply.. really had no clue what to ask but assume once the pistons are frozen that bad new rings would be required. Is there any aftermarket option for a carb? mikuni etc?


Mike the bike has 1200 or so original miles. Yes the reeds are still in it. I almost laughed my butt off when I saw them on a street bike. I have everything. I am a restorer and keep every part I take off and every part I replace and use. All goes with the bike.

The carbs, I pulled, cleaned, carb soaked and reassembled. The cylinders were stuck when I got it and jumping on the kick to get it loose was not happening. I took the plugs out and soaked the pistons for 3 days with transmission fluid. Took the heads off and with a wooden 2x2 tapped the pistons loose now she kicks over with 150 or so pounds of compression and no issue..

Checked cylinders and all clean and great condition
 
I have never delt with a no title bike in fl so no clue how costly that could be as well. Wondering if in the end it wouldn't just be cheaper to hold out for a running bike.

Is the rd250 that much heavier/different than the 125?
 
Re: Re: RD125 Items to note on buying

miken5678 said:
Is the rd250 that much heavier/different than the 125?

Rd250 is an under bored rd350. Same chassis. About the same size as a cb350. Not a big bike at all. Swap the jugs and it's a 350.

The 125 is a tiny guy. Feels like a bicycle.
 
thanks, I think that is the option I should go for then. I have been looking for a cb125 but the prices are through the roof and I expect the rd125 to be a little better performance wise. The rd60 looked interesting as well but I wouldn't feel safe on the street in that.
 
I have a cb125 as well. It and the rd125 are almost identical in stature. And yeah, the rd60 is microscopic!
 
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