BBK question?

[kglazer]

Thats what i was thinking 3 tanks and if everything is fine at 32:1 i will keep running it. Would it ever make sence to switch to 40:1 just to see about better performance?

[90GTVert]

I doubt you'll see much difference in 32:1 and 40:1. I just choose a ratio and stick with it from day 1 for my builds. There's a lot of personal preference involved in break in procedures and oil choices.

[kglazer]

I will stick to the richer setup just to be safe

[mccanic]

good idea! keep using the same type of oil to

[kglazer]

Yep. I might want to add a racing filter and ditch the stock air filter for the looks of nothing covering the rear whe since i took the fender off and the little added performance. Would the 90 jet be to small for it?

[reveeen]

Leave things as they are for your break in.

I'm in danger of being a do as I say, not as I do, kind of guy here. With your stock carburetor, in it's stock location, you will do no better than with your stock air box. When the situation dictates, meaning: the stock air box no longer fits, then you have to look at other ways of filtering your air.

Here is why:
1) a stock air box does an excellent job of keeping the rain/road splash, and dirt, out of your engine, ESPECIALLY for those who have removed the rear inner fender.
2) A K+N, or the sock, type of filters require regular maintenance (cleaning and oiling). On a scooter the filter is close to the ground and if you don't oil it (to trap the dirt) you might as well run a velocity stack with a coarse screen. Once the dirt is trapped you must wash the dirt out regularly, and re-oil.
3) Your carburetor, as it's set up now, is set up to use the air box, remove it and you are into a whole world of pilot jets, main jets, and possibly needles, are you prepared to go here?

Typically, about a 40 pilot jet, a main jet about 100+ are required, with some luck you can juggle your stock needle.

[mccanic]

very good right up reveen! Like he said leave that alone, if its broken get another.

[kglazer]

Ok sounds good i def leaving thw stock airbox. Im a person that believes function over looks is the way to go. I didnt know its that much of hassel lol.

[kglazer]

Will there be any problems like overheating or anything running the technigas next r pipe with the malossi 70cc kit. I have to save up for the rs2.

[mccanic]

get a 50cc pipe. the stock crank can't take the rpms that, that pipe will make.

[kglazer]

The technigas next r is a 50cc pipe i have been runing it on my 50cc all summer. the rs2 is the 70cc pipe in technigas lineup. I have the stock pipe but prefer the weight savings of the next r.

[mccanic]

oh sorry i read that wrong lol, no you will be fine running that pipe, i would save to buy the motoforce evo crankshaft, and get the next r!!

[kglazer]

Could you send me the link to the cranckshaft and what does upgrading the crankshaft do?
Do u mean save up for the rs2 i have the next r already?

[mccanic]

upgrading the crank shaft so you can reach higher revs with out throwing a rod.
www.scootercraft.com/scooters/yamaha-scooters/zuma-bws-50-horizontal/crankshafts/motoforce-racing-crankshaft-10mm-minarelli-horizontal.html
this one is cheaping then the evo and just as good, i like inserts rather then full circle cranks.
lol yes i mean the rs2 sorry was really tired yesterday night.
scootercraft wiill have the crank back instock by the time you have money for it, they have great service never had a problem.

[2strokd]

Just how high do you think your gonna rev lol? Ive pushed OEM cranks ever 11,000RPM many times with many miles and never broke one. Maybe i was lucky hehe?