Buddy big bore

bendbuddy · Post by **bendbuddy** » Mon Feb 22, 2010 1:04 am

For those of you who have added the bolt-on 161 kit, have you been satisfied with the performance jump? I've saved the money, but want to make sure it's worth the parts and shop labor pricetag.

ScooterTrash · Post by **ScooterTrash** » Mon Feb 22, 2010 1:17 am

I couldn't tell you if it's worth the money you are going to pay but it was worth it for me

Kaos · Post by **Kaos** » Mon Feb 22, 2010 1:26 am

Yeah its worth it, but not as your first mod... There are a LOT of other things you should do first before you do the big bore, or you likely won't be very satisfied with it.

toycoma98 · Post by **toycoma98** » Sun Mar 07, 2010 5:06 am

I'm also interested in the 161 kit. What else is required for the install? Does it really bolt on ?

ScooterTrash · Post by **ScooterTrash** » Sun Mar 07, 2010 6:49 am

toycoma98 wrote:I'm also interested in the 161 kit. What else is required for the install? Does it really bolt on ?

Technically everything does. This is not a beginners mod, nor should it be attempted by someone who doesn't understand carb tuning. Not speaking at you directly, just generally.

toycoma98 · Post by **toycoma98** » Sun Mar 07, 2010 7:12 am

ScooterTrash wrote:
toycoma98 wrote:I'm also interested in the 161 kit. What else is required for the install? Does it really bolt on ?
Technically everything does. This is not a beginners mod, nor should it be attempted by someone who doesn't understand carb tuning. Not speaking at you directly, just generally.

I agree. I PMed kaos and he said the same thing.

I installed a big bore kit on my pocket bike

I could probably do it to my Metro.

Post by **ericalm** » Sun Mar 07, 2010 7:47 am

Several people who've put the 183 on the 150s have said that you only get a good boost if you also install the bigger head. Is this also the case for the 125s? That's another $100 in parts and a chunk of labor.

ScooterTrash · Post by **ScooterTrash** » Sun Mar 07, 2010 8:56 am

ericalm wrote:Several people who've put the 183 on the 150s have said that you only get a good boost if you also install the bigger head. Is this also the case for the 125s? That's another $100 in parts and a chunk of labor.

Bigger head is always better, Labor wouldn't cost any more if you got it done at the same time. Unless your mechanic try's to screw you.

Kaos · Post by **Kaos** » Sun Mar 07, 2010 3:34 pm

ericalm wrote:Several people who've put the 183 on the 150s have said that you only get a good boost if you also install the bigger head. Is this also the case for the 125s? That's another $100 in parts and a chunk of labor.

Yep, thats absolutely true. And then you need to install bigger jets, and none of that helps much if your CVT is stock.... Its a vicious cycle

toycoma98 · Post by **toycoma98** » Sat Mar 13, 2010 8:15 am

My stock head is getting port and polished. Is the NCY big valve head worth it? Or port polishing the stock is good enough for the 58.5mm big bore?

Kaos · Post by **Kaos** » Sat Mar 13, 2010 1:36 pm

toycoma98 wrote:My stock head is getting port and polished. Is the NCY big valve head worth it? Or port polishing the stock is good enough for the 58.5mm big bore?

I ran a ported and polished stock head for a long time with great results. That being said, I just installed a big valve ported polished shaved head and it was a HUGE increase in power over the worked over stock head,