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Old 05-14-2014, 12:52 PM
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mapbike mapbike is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Default Re: thats dax question

Originally Posted by fischer550 View Post
Will a 68.5cc bottom end from thatsdax work with a ported cylinder made for sky hawk bottom end? Thanks

Quick answer...LOL!

If I'm wrong on this I know I will be swiftly corrected...LOL!

I don't run Grube Skyhawk engines but I know the the piston wrist pin location is several milimeters higher than of the standard PK80 type engine which is what the dax GenIV is, to the best of my knowledge the jug/cylinder you need must be for the PK80 engine.

I think there have been some who have done some serious modifications to make the jugs work on an engine they weren't designed for, but I'm pretty positive you cant use the skyhawk jug on the dax engine as a bolt on and go situation.

My advice is quit toying around with this and that and just buy a jug for your engine that has been recommended in the links you have been given in the other threads where you ask about them and do your best to build your engine up nice tight and sealed up, then you'll be riding your bike and enjoying it, just a little friendly advice..... don't over think all of this, you're a noob to all this that needs to keep it simple or all you will do is create more grief for yourself, you have been directed to parts that will work on your engine so why keep digging for this and that when you don't know what the heck will or wont work.... just follow the simple advice we have given you, get the recommended parts, get to work and build the little china girl up for your bike, honestly that will be the easy part, getting it on the bike right and set up right and tuned right will be the biggest challenge for you I'm sure, so no reason to make the easy stuff more complicated than it needs to be.

I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!

Last edited by mapbike; 05-14-2014 at 01:08 PM.
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