'03 YZ 125 Mods?
- Thread starter PDBRacer
- Start date
Jetting should be your first step, none of that bolt stuff means anything till you get it jetted properly.
jetting a bike is just making sure its running the correct air to fuel ratio do a search on and you will find all kinds of answers. as for mods that bike rips i would spend my money on first of all keeping the bike fresh (tires,top end,maintenance)and then if i had extra money i would get a skid plate,good chain,a good set of bars that won't bend in the first tip over like the stock ones and if you really want to spend money have the suspension set up just for you (riding ability and weight)not untill all that if there is still money left then i would worrie about doing engine mods even then i would not do a pipe untill i smashed the stock one i would first do internal mods like a reed cadge or adding a tooth to the rear sproket or even porting why spend $200 on a pipe when if you fall over (and you will) you can smash it when you could buy a reed cadge or porting or gearing that won't get wrecked in a crash.
What do you wanna do with the power? More power? Or just more top-end power? I don't really like porting, because you never can change it back. You can really do something with the top-end with a VHM cilinderhead. You can change the combustion-chamber (more or less compression) and give the bike more top or bottom-end.
pyromaniac
Member
- Jun 25, 2000
- 377
- 0
This kind of things really scares me. A guy buys a brand new bike and want to buy all fancy aftermarket parts aswell and doesnt even know how to rejet. Some people seem to think they can buy speed(skill).
To gain from more power you have to be really skilled to gain more than just a second on the straights that you will lose anyway when you have to brake earlier for the corner. The good guys wont be much faster than you on the straights but they will keep the speed much more though the corner. Look on the good guys in the 125 and 250 class, its a matter of seconds between them and twice as many cc.
Invest in correct valving and springs for your suspension. I bought new valving for my forks and the result was that i coulnt ride twice as long at what feels like twice as fast and crash only 1/5 as much. Thats a good $150 and thats what you want. More power is probably the last thing you need.
To gain from more power you have to be really skilled to gain more than just a second on the straights that you will lose anyway when you have to brake earlier for the corner. The good guys wont be much faster than you on the straights but they will keep the speed much more though the corner. Look on the good guys in the 125 and 250 class, its a matter of seconds between them and twice as many cc.
Invest in correct valving and springs for your suspension. I bought new valving for my forks and the result was that i coulnt ride twice as long at what feels like twice as fast and crash only 1/5 as much. Thats a good $150 and thats what you want. More power is probably the last thing you need.
Bet On Red
Member
- Aug 11, 2003
- 85
- 0
get the black power band... the low range hit you get with them is super!
It is easy to feel like a person needs a new bike, hot parts, etc to compete. It is much easier to buy pipes than to practise.
A few weeks ago I watched a good rider run away from darn near everyone. His bike was a 1992 CR 500. Virtually stock.
Buy a good shop manual. It amazes me to see the amount of hopped up bikes that have never had the shock linkage greased,
A few weeks ago I watched a good rider run away from darn near everyone. His bike was a 1992 CR 500. Virtually stock.
Buy a good shop manual. It amazes me to see the amount of hopped up bikes that have never had the shock linkage greased,
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