Too big or not

mmurriello1
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mmurriello1
Edited Date/Time 5/24/2016 1:32pm
Hey I got a 1979 rm125 last year and me and my dad rebuilt and gone through the bottom end and got it running great. It has also been bored out to a 56mm piston and we put a huge carb (38mm) on the bike. I am worried if I am too big for the bike. I am about 6-4 and weigh about 260
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Bman_145
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Bman_145 5/23/2016 7:57am
5/23/2016 7:57am
I think we need more info. What are your plans for the bike? A ranch put-put bike, a track bike, going to trail ride, or race the bike?
wolfy0067
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wolfy0067 5/23/2016 12:15pm
5/23/2016 12:15pm
That's just to much carb, no pun intended, engine can't produce a strong enough signal for the carb to work properly.
mmurriello1
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mmurriello1 5/24/2016 5:03am
5/24/2016 5:03am Edited Date/Time 5/24/2016 5:11am
Bman_145 wrote:
I think we need more info. What are your plans for the bike? A ranch put-put bike, a track bike, going to trail ride, or race...
I think we need more info. What are your plans for the bike? A ranch put-put bike, a track bike, going to trail ride, or race the bike?
I would like to go to the track like 1 or 2 a month but other than that I will be riding trails
mmurriello1
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mmurriello1 5/24/2016 5:13am
5/24/2016 5:13am
wolfy0067 wrote:
That's just to much carb, no pun intended, engine can't produce a strong enough signal for the carb to work properly.
I though the same thing but it was all I had at the moment and belive it or not for a 125 it is pretty fast. It smokes my brother 1983 yz125

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MaxPower
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MaxPower 5/24/2016 9:07am
5/24/2016 9:07am
No, you are about the average size of a 125 rider. Now if you were pushing 7' tall and 350lbs i might say you should move up to a 250
Bman_145
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Bman_145 5/24/2016 1:32pm
5/24/2016 1:32pm
Max that's too funny!

The truth is that bike with your size will not do well at all on a track. I would be afraid of a major issue happening while riding it becasue of your size, like a catastrophic frame malfunction. The bike just wasn't meant for someone of that size riding it on a track. Trails you can get away with it more, but the suspension should be majorly changed. You're 100 pounds over what the stock settings would be setup for.

Good luck, but keep it safe.

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