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Joined
6/8/2015
Location
Southaven, MS
US
mississippihippie
9/6/2017 12:39am
9/6/2017 12:39am
Found a mint 04 rm 125. Still had original tires on it. When I bought it, clutch was slipping. installed a new clutch plate kit.rebuilt the top end and cleaned the carb. Now I have been riding it for fun. I been thinking about racing it. Went to practice a couple starts and it will not start In 2nd gear... I've never had a bike that did not like starting in 2nd gear. I believe the front sprocket is a 13 tooth and 50 tooth rear. Anyone else had this problem? I feel like a complete goon coming here to ask lol but the bike runs good. It's pretty slow, it's a stock 125 so II ride it pretty hard but bogs off a 2nd gear start. Thanks in advance for any responses and this is the BEST mx forum
Paw Paw
The Shop
Maybe look into some other jetting options?
vet race bike 17 crf450 , yz125 for fun in 2nd class.
After a long time from racing a two stroke , and that was yz250s I have found it a little tricky to get it
right. I have been trying second but on sand only for now and that makes it easier to bog.
high rpm and feather that clutch all the way out the gate . I have got better but you have to be so precise.
The 125 is such a hoot to ride. first gear would be easier but you will need to shift asap off the gate, drop the revs a little and you still may bog if not perfect. my bike is jetted perfect! v voce 4, and full fmf system . gearing will play o large role in this to , what is on your rear wheel ? I run a 50 tooth.
As for starts, I'm 187lbs without gear. Raced my wife's yz125 the other week cos i bent my front disk in a crash. 2nd gear, wide open and let the clutch go aggressively, maybe a couple flicks if the dirt was really tacky but just gotta hold it wide
Pit Row
This method works for concrete:
Clean the gate really well;
Do a short burnout to lay down some rubber on the pad;
Hold it at about 3/4 throttle while slipping the clutch out in 2nd. It should be trying to creep a little. Hold your bike back with both legs down in front of the footpegs. Your body should be centered but leaning forward slightly;
When the gate drops, wick the throttle to WFO while lifting your toes off the ground. Let the clutch feed out for the first 15-20 feet out of the gate. Don't let it all the way out until you are rolling pretty fast.
Nah but like mentioned before, you will need to work the clutch a bit.
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