Whats your opinion?

[SFE_Ramsay]

I'm new to the bike scene and bought a 125cc Lifan Thumpstar off Ebay, as i had not much cash but really wanted a bike. Its an awesome little bike to get started with and get use to riding, but after riding my mates 150cc full race bike i realised i want more power out of mine. His bike just wants to throw you off in the first 3 gears, i'm not looking for that kind of power, but i am looking to upgrade so my bike has more balls . I also rode another mates 125cc Terra Moto Thumpstar and loved it, it was perfect for the power that i wanted. So now i'm confused.

What do you guys suggest doing?

1. Stepping up to a Lifan 140cc Slightly modded motor.

2. Going all out on the 125cc Motor i got.

So Far my bike has got new plastics with famous sticker kit to suit, and a large exhaust on it.

What do i do?

 

[roost666]

get a 140 and slightly mod it....it all depends on how much you wanna spend possibilities are endless bro

 

[goodytod]

liek roost said... depends on ur budget...

i have pretty much modded most of my 138cc lifan and i get to test ride it this weekend.. so im looking forward to the power i get outta it.. i was already keep up with my mates DHZ140 so im hoping that the little more work i have done will put me just in front of him this weekend..

but yeah its all abotu the dollars mate

 

[SFE_Ramsay]

what kind of price am i looking at to upgrade to the 140cc and maybe go a bigger carby and a few other mods. What kind of price have you guys paid to do this? any help is appreciated.

 

[t.luisetto]

Hye im looking at doing a simalar thing.
ATM i have a 125 zongshen motor, and i want more, so im looking at a 140 or 150...

But not sure if the engine mounts are the same... with my current bike setup, (because its a zongshen) and the new one will be a lifan or something allong those lines.

any help would be great!!

 

[roost666]

just browse ebay and you can find some pretty good carbys for decent prices....just a simple drive train change can give you more pick up down low but less top end or you can have less pick up and a higher top end just by changing sprockets....easiest way to do things is bit by bit

 

[SFE_Ramsay]

Yeh thats what ive been doing at the moment. i changed sprocket to a 37T Sprocket already and it made so much difference! Ive been down to DHZ Mini Moto @ Villawood and spoke to Casey down there and im looking at doing a 30mm Mikuni Carburetor Kit and getting a high comp piston put in. This is all new to me so im still looking into it. Ive been looking into going to a bigger bore and stroke on the motor. Is that much power increase aswell? Thanks for all the help

 

[hobo13b]

I just put a 140cc Lifan big bore motor with a 25mm mikuni carby in my Thumpster Expert Pro to replace the shot 125cc motor, and I tell ya what mate, it made a whopping difference! The extra power was immediately noticeable. From start to finish it cost me $350 that included buying the engine, shipping, carby, and a few other bits n pieces. I sourced everything off ebay. I just sat and waited for cheap things to pop up then when something cheap was about to go I would grab it. I saw the 140cc Lifan engines go for anywhere between $280 - $350 (not including shipping) so bargains can be found you just have to be patient.

 

[SFE_Ramsay]

Thats awesome! i have been watching some 140cc Lifan motors on Ebay and your right there around $280-350. I was expecting so much more money to get the upgrades i want but so far am very happy with what im hearing. Ill have to keep my eye out for some more upgrades.

 

[I_THUMP]

Hye im looking at doing a simalar thing.
ATM i have a 125 zongshen motor, and i want more, so im looking at a 140 or 150...

But not sure if the engine mounts are the same... with my current bike setup, (because its a zongshen) and the new one will be a lifan or something allong those lines.

any help would be great!!

It should bolt straight in without any problems

 

[t.luisetto]

I just put a 140cc Lifan big bore motor with a 25mm mikuni carby in my Thumpster Expert Pro to replace the shot 125cc motor, and I tell ya what mate, it made a whopping difference! The extra power was immediately noticeable. From start to finish it cost me $350 that included buying the engine, shipping, carby, and a few other bits n pieces. I sourced everything off ebay. I just sat and waited for cheap things to pop up then when something cheap was about to go I would grab it. I saw the 140cc Lifan engines go for anywhere between $280 - $350 (not including shipping) so bargains can be found you just have to be patient.

I found a guy on chesterville rd cheltemham theat would do it for me 350 installed... same situation the 125 blew and now im gonna go 140 or 150 lifan...

the 150 was like 400-450 or something...

 

[hobo13b]

Bro if you can get a 140cc fitted for $350 I would be doing that. Good luck with it champ

 

[SFE_Ramsay]

To do a big bore kit on my 125 to go to 140cc and im getting Pro tapers bars, fold back levers and a billet gear shifter and a full service of the motor for $450 inc Labour and all. Takes abnout 2 weeks in total! cant wait!