Most "Mod 1" motors are just raised intake & exhaust duration, with a tighter squish. Leaving the transfers stock, no crank work, no case work. Pretty much considered just a "Mid Mod".


And if you think about it.... the QD's (if looking at the 25HT) really isnt all that much more then buying a fullmod zen from most of the people doing them.

On average, you will pay $500-600 just for the mod zen alone, then for a good tuned pipe setup, another $150-200. Thats Anywhere from $650-800. The QD25HT is $650 + $200 Hotpipe ($850 since you must buy as package deal now). If you think about, you arent paying that much more for a motor that is alot easier to replace hurt parts (piston, sleeve, head button) vs a Zenoah that if you have something happen to the jug... you are looking at buying a new one.



Wanna see what a $400 ashtray (fullmod zen260) looks like?



theres no fixing that, and nothing you can do when so much material has been removed walls are paper thin. You just hope that on your next fullmod zenoah, the same thing or worse doesnt happen,