Need advice

[rodda]

Hey guys ,
newcomer hear just registed 2day coz i need ta get info on my bike and engine,

for a start i bought a pitpro bigfoot about a month ago and it has the 140 1p56fmj engine in it, seems to have a fair bit of grunt after lowering the needle in the carbie by one notch, but im still wanting to know what mods i can do to the engine to give it a bit more bang ?, also what length usd forks would i buy for a bigfoot because the stock fork just dont like landing, they bottom out most of the time, i cant find n e specs on my bike apart from what is on pitpro.com.au which is prettymuch useless too me

n e help or advise would be much appreciated,

 

[bulldog93]

Porting..
Better carbi.. Most people like the OKOs at the moment..
Cam.. Decomp
CDI (won't make your engine gain HP)..
IRK or ORK. (Won't make your engine gain HP).
1/4 turn throttle (Won't make your engine gain HP).. All parts can be located at DHZ Mini Moto - Home

Welcome to MR..

 

[rodda]

how many mm carb would ya advize for the 140cc? i noticed that oko come out in a variety of sizes

 

[bulldog93]

Most of the boys have a 26mm and add a 100 main and something else for the pilot..
Have a read through these:
- http://www.miniriders.com.au/carby-tuning/23986-those-about-rock-buying-oko-flatslides.html
- http://www.miniriders.com.au/carby-tuning/24850-port-matching-inlet-manifold.html
- http://www.miniriders.com.au/carby-tuning/25033-carb-jetting-tuning-dummies.html
- http://www.miniriders.com.au/carby-tuning/20778-carburettor-tuning-guide.html
( Carby & Tuning - Mini Dirt Bikes & Pit Bikes Forum )

Might pay to read these aswell:
- http://www.miniriders.com.au/bike-setup/24009-performance-upgrades-guidelines-stage-i-iii.html
- http://www.miniriders.com.au/bike-setup/24239-achtung-noobs-your-new-pitbike-you-set-up-tips.html
- http://www.miniriders.com.au/bike-setup/12274-tricks-trade.html
( Bike Setup!!! - Mini Dirt Bikes & Pit Bikes Forum )

And this is MRs 'mini tutorials and how to's':
- Mini Tutorials & How To's - Mini Dirt Bikes & Pit Bikes Forum

 

[thump*140]

36 pilot jet, 97 main jet for an OKO 26mm into a stock 140 motor.. that's your starting point...
if you want some ideas on modding your bike, have a look through this, it's one i "prepared earlier"..
http://www.miniriders.com.au/bike-setup/24009-performance-upgrades-guidelines-stage-i-iii.html

 

[DvDRip]

measure your forks from the top to the center of the axle. if they are 730mm or less then you can get GPX forks for it. the same forks they use on pitster pro's, I've got them to replace my pitpro forks and they're pretty good. Call DHZ for a price.