90cc upgrade!

**ScarFace** · 28th May 2010, 22:06

Hey all,

For months I have been searching for more power, and I have come to a conclusion, I shall swap my 50cc Jialing/Honda engine for a 90cc Lifan engine, according to this forum: http://nopedguru.proboards.com/index...lay&thread=128
they should swap relatively easily.

But due to lack of locating this motor (I emailed Lifan NZ, no reply yet) as yet I will attempt to put this carb and pod filter in
http://shop.scootling.co.nz/index.ph...&productId=737
&
http://shop.scootling.co.nz/index.ph...&productId=371.

This is my master plan, any ideas, critiques or suggestions are welcomed.

Attached (fingers crossed) are photos of my current 50cc engine and stock carb.

**DangerMice** · 29th May 2010, 13:49

Given the increased rego costs, I wonder how many people are planning to put 70cc+ kits in their 50cc scoots. I certainly wouldn't mind. Might have to get me bike license first though!

**marty** · 29th May 2010, 16:51

i know someone who has a 90 in their 50 - well worth it he reckons.

then buy a pre 1970 car, and pay $97/yr rego.

**ScarFace** · 29th May 2010, 19:18

Yea im going keep this resisted as a Moped, be cheap as chips then, Il take heaps of photos and post it up.

pre 1970's car are $97 to register? that's awesome

**SS90** · 30th May 2010, 09:21

I feel like a tit saying this, but it is all fun and games until a copper decides to do some "checks" on your "scooter"....then it gets expensive.

**Spuds1234** · 30th May 2010, 10:07

If there is nothing obvious on the outside of the engine, how would he know if its bigger?

I can think of a few bikes with bigger engines in and you cant tell at all.

**ScarFace** · 30th May 2010, 11:45

Originally Posted by Spuds1234

If there is nothing obvious on the outside of the engine, how would he know if its bigger?

I can think of a few bikes with bigger engines in and you cant tell at all.

Thats exactly what im thinking, and by all accounts it just bolts where the current engine is, so it cant be that much bigger.

Plus its not like I want it to go like 80, it just to safely keep up with traffic, especially up hills.

**disenfranchised** · 30th May 2010, 12:06

Originally Posted by Spuds1234

If there is nothing obvious on the outside of the engine, how would he know if its bigger?

Remember the moped registration rules require that the bike:
1. Has an engine no bigger than 50cc
2. Has power outout of 2KW or less
3. Has a max speed of 50kph

If you did happen to get clocked for speeding at all, then that's basically prooving that the bike doesn't meet the moped registration requirements

**marty** · 30th May 2010, 14:53

if riding a 90cc instead of a 50cc at 60km/h instead of 50km/h is the biggest crime of the year,we're all fucked.

**Spearfish** · 31st May 2010, 14:33

The good thing about scoots is they don't attract the same attention bikes do, in saying that if its going down the motorway at 100+ the plates will get checked if it physically small.
If you do get pinged they can tell you to get it tested on a dyno at your expense. (it has happened).
From experience better acceleration and not having to conserve momentum is better to aim for then top speed, the tyres and brakes cut out fast unless you fit a bigger disk kit.

**ScarFace** · 19th June 2010, 10:33

Whoa, pump the brakes a little there, I just found out that the 90cc engine from lifan is $690. Im out

**Spearfish** · 20th June 2010, 08:36

Still cheaper than a 50 mod
$350 cylinder, piston, bearing, gaskets
$260 pipe
$120 variater plus add some for roller weight swaps until its tuned
$130 carb + extras for new throttle cables and probably a manual choke + jet swaps
$80 slightly larger rear tyre

then it goes to extras

$250 programmable CDI (only for more speed)
$? gear up kit for the final drive
$? water coolled cylinder conversion and associated gubbins
$300 engine monitoring kit with higher range speedo

**SS90** · 20th June 2010, 21:43

Originally Posted by ScarFace

Whoa, pump the brakes a little there, I just found out that the 90cc engine from lifan is $690. Im out

Sad isn't it..... distributors in NZ are just getting greedy.

Engines like the Japanese based clones (like the Lifan 90cc) are shockingly cheap from the manufacturer, about $USD 50, and freight is piss all when stuck in the container of scooters.

worse case, $125 (NZ) landed.

Someone somewhere needs a new trailer for his kids Yacht.