Best engine mod on a Honda z50?

[quest4jest]

Ok to clarify :- stroked and bored total would be 115cc . Running the pipe in the picture ( small pic i know) kitaco high level carbon . will have a 20 mil carb n probs a k&n filter . will need to be ported and a hiigh lift cam but, I'm sure this would give good enough performance . I'm sticking to the 8 inch wheels with duro tyres fitted . The only chinese parts are the sensible front end with oil filled forks and disc brake (going faster is great ,stopping faster is a must !) . only part to work out is the make and type of carb . oh yeah it's a 4 speed manual and the sprockets have been uprated already

 

[quest4jest]

Progress so far. I decided to fit the 85cc barrel and piston ( marked as 49cc )so I could judge each mod as installed . Also discovered the head was a small valve type and changed this for one I had kicking around off a 100cc ( long stroke ) quad engine . noticed the original inlet manifold had a restricted hole so, rectified this and refitted with the original carb and air filter . The end result of this work is I now have a bike that can pull in 4th from 20mph and touch 50mph on the flat ,briefly as still running in at the moment and keep up with in town traffic . will run like this for a month or so and then stroke the engine/change carb. how hard is it to drill the oil way and fit a high flow oil pump ?

 

[The_GDFP]

YouTube - How to Install High Volume Oil Pump

 

[motodevo]

easy to drill takes no time, but youre gunna have to pull the top end you just put on to do it. Also if you dont have a clutch nut socket you'll need one to remove the clutch to get to the pump(dont bash it with a hammer and screwdriver to get the clutch nut off) and a good impact driver to get the cover/pump screws out

 

[quest4jest]

stroke it from the outset 88's are sh!t way to slow , 4 speed box is a must , HD clutch and springs , ppl who say they are happy with there 88's are full of sh!t
Direct quote from snitchy , Would people who run 88cc heads like to perhaps tell him they arn't full of ****? we all know a well tuned 88 bike is better than a badly tuned 110 ****** and a good jap 88 still labeled as a 49cc is good for insurance and road side inspections ;0) Lets face it a honda monkey with quality parts will last years, Lets keep this thread as it was started, facts and good sound advice. anything more isn't welcome !

 

[SnItChY]

Well the best thing you could do is learn some things b4 you mouthoff

your relly going about it the wrong way , prolly the reason your on an Australian web site looking for answers , whats wrong with ya pommy forums , all ready made a good name for self there have ya

but hey i wouldnt know anything hu , i only been playing with these bike for 5 or 6 yrs

You'll get advise here im sure , best o luck with it ,,,,,

 

[darkrider]

mate dont see were you get off. people are just trying to help you giving input and advice and "most" of them know a thing or two.

 

[psi z]

best engine mod

I would use a Daytona 125 motor , 4 speed gearbox , trick ignition , gear box mounted clutch and the motor is the same length as an original z50 motor . I have 2 brand new ones if you are interested.

 

[mattbombers]

I would use a Daytona 125 motor , 4 speed gearbox , trick ignition , gear box mounted clutch and the motor is the same length as an original z50 motor . I have 2 brand new ones if you are interested.

4 posts and your sh!t is already getting annoying

 

[gavgav]

I would use a Daytona 125 motor , 4 speed gearbox , trick ignition , gear box mounted clutch and the motor is the same length as an original z50 motor . I have 2 brand new ones if you are interested.

I thought the daytona 125 and 150 were longer then the standard z50 motor

 

[psi z]

4 posts and your sh!t is already getting annoying

Good to see i'm making friends already . Mattbombers =**** sucker.

 

[psi z]

I thought the daytona 125 and 150 were longer then the standard z50 motor

The Daytona 150 is longer than the original z50 motor but the Daytona 125 is the same length.

 

[The_GDFP]

Daytona 115/119 are the same as Honda 50, but the actual 125 has a 69mm jug and taller head. 119's get called "125" but aren't. But, WGAF, since the thread's older than Moses's dad.

 

[doopsx3]

I have a GDFP 88 on my kids MXer and it is fine on the dirt but yeah, cubes (or cc's) is king on the pavement....go with a GDFP stroker

 

[The_GDFP]

Ricky Retireeeeeeee! I'ma send you some stuff next week. Kids diggin the new track? Pics/vids?

 

[doopsx3]

track pics will come as soon as I get time to make a track...lol.....I think I worked less when I was not retired