Honda cr 125 dyno looking for some help

billyslad
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billyslad
Edited Date/Time 11/5/2015 1:46pm
Had my 83 cr 125 put on dyno today ahead of some winter mods
Despite some rich jetting at the top end and a hastily made exhaust it gave a broad spread of power and 21 horsepower at the back wheel

So what are everyone's ideas to make this faster ?
I am looking to keep a smooth power curve and broad power band

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dbrunski125 10/12/2015 1:37pm
10/12/2015 1:37pm
billyslad wrote:
Had my 83 cr 125 put on dyno today ahead of some winter mods Despite some rich jetting at the top end and a hastily made...
Had my 83 cr 125 put on dyno today ahead of some winter mods
Despite some rich jetting at the top end and a hastily made exhaust it gave a broad spread of power and 21 horsepower at the back wheel

So what are everyone's ideas to make this faster ?
I am looking to keep a smooth power curve and broad power band

Exhaust if they make for that bike. It's old lol. And carbon fiber reed petals if they make for that bike. Again, it's old lol. Don't think they make a rad valve or v force reed cage for that bike
j368
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j368 10/12/2015 6:56pm
10/12/2015 6:56pm
Just curious, did you put a street tire on or keep the knobby on? If you put a street tire on, did you use the rim lock or no?
billyslad
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billyslad 10/12/2015 10:56pm
10/12/2015 10:56pm
Yes I ran a street tyre with a security bolt
adamcr151515 11/5/2015 7:59am
11/5/2015 7:59am
I race a 82 CR125 in local vintage series. Use the OEM pipe, it's better than a DG. Get it ported by a good engine builder, i've raced a 82 CR125 with a full Eric Gorr motor and it was substantially faster than my stock motor. Get RaceTech gold valve emulators in the forks with new springs, it turns dampening rod forks into cartridge forks. Get the gold valve in the rear as well.

The Shop

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mxtech1
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mxtech1 11/5/2015 11:10am
11/5/2015 11:10am
How much money do you want to throw at it?
brocsdad
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brocsdad 11/5/2015 1:46pm
11/5/2015 1:46pm
If you want it to make real power send it to Terry Varner!

My sons KX 85 was making 28hp

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