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http://www.miniriders.com.au/forum/tech-talk/13442-stroked-bored-171cc-monster-mini.html Was my plan. Still is when i get some Cash flow.

2ish months, It Depends on My cash. As Soon as I Send the money The Build will be complete in a Month tops. It Just depends on when I Have the money to send :). I may end up going with the 59mm Piston, as Advised by the machinist, as he reckons there isn't much performance difference from the 59...

29/24mm Valves.. Should be 15hp easy, from what Ive seen people do and to what extent already i would be pretty dissapointed if it was anything under 16hp. this is just not a slap it together motor Mack, I wouldnt spend all this cash on custom made parts just to slap em on and hope for the best.

Yeah, Sorry Ive been a bit confusing, I agree. Whats Everyones thoughts on what they've read so far, hows my chances, HP Guesstimates?, lets hear input, Only really 2 blokes other than me getting involved in this.. themountain and Cactus Jack

As you can see on the above picture the two pins through the cylinder head.

Lifan engines have always been the highest quality built engine until Jialing (GPX) Came along, the Lifan and Jialing are very Similar now.. The Lifans main problem was the 1D3U gearbox which had alot of false neutral problems, you can either fix that with a Shift Star Kit from SDG or Installing...

Cactus Jack, Yes Im sorry i did post the wrong pictures up i apologise I'm only telling you what I'm being told, The bloke is Italian and we have a bad language barrier. I am not sure about the pins he was talking about but you seem to know what your talking about so they sound like what he...

The engine is a Lifan 120. Cases need to be bored 62mm to fit the sleeve. There is enough room. people have run 62mm bore which needs about a 64mm grind to fit the sleeve no problems..

I was thinking of this problem recently about the Hi comp and Trying to Kick Start, I will be running a thicker gasket so it will reduce comp a bit so not running to hi. Also was thinking about installing a revamped electric start, or just Starting her at TDC.

Sorry Yeah dude, Miss-read you, Using the 3mm Offset Pin I think, Its all the Supplied in the kit I Dont really know specs until I Get the Kit. The Crankcase will need to be grinded a small bit (So I've been told).

Le|Garage: No Specs yet and probably no chance of getting them, this kits getting built for me and I don't think there too keen on sharing info.. As for the Crank, Using a 3mm shorter custom made rod. Lifan 120 cylinders have been bored to 62mm previously. Ive seen a few guys in the US with...

Hey Guys, Some of you Know me Some of you Don't. I was one of the Founding Members of MiniRiders. I Helped the Old Admin (David, Also owner of PBR Forum) Build and Design this Forum. I've Been away for a Long time and Have Decided to come Back and Stay Back, There will be alot of Tidying up...

Ill speak to Admin now guys. Did you just want the z50 Forum or all the way it was? Need to have a vote.

Crower make good cams, Staggs USA sell the Oversize Valve Heads (not worth the money).

Ive read a few posts on Planetminis. And Most of the High Output engines have a Lifan Top end on a Jialing Bottom. Hopefyully RKFinch will see this post and give some input.

Bigger Carb, Bigger Bore, Bigger Stroke, Head work, Inner Rotor Kit, Gearing, Suspension (You will find if you have the right tuned suspension your bike will go alot better), Exhaust, CDI, etc etc. Most of this costs money. Money will spent in my mind.

Anything over 55mm Isn't risky and does not need a Stroker kit. You Can Bore to 57-58 VERY VERY Safe. 60mm Max.

Get Back on topic Dude. No matter your preference China or Jap. This isn't the Thread for it. I would prefer for this to stay to the point and RKFinch and Mack were actually posting relevant posts.

Looking good Dude. Good to see some DIY Work getting done.