Big bore stroker

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Joined: Sun Aug 06, 2017 2:42 am

Big bore stroker

Postby Pete130 » Sun Nov 05, 2017 12:21 am

Hi all im new to form and would like to here people ideas. Im woking on a yq100 and i only seem to read about how bad they are and to never try tuning one just get a 50 well got one of them as well lol. Easy is easy hard is rewarding how i see it. Well i got myself a yq100 for $100 great deal he had left it till it was hydro locked from fuel over the months sitting so i got cheap. Got given the 50cc and a red devil/12 model 4000km free yes free and 4 othere scooter as well so i desidrd to do a bigbor stroker on the 100.have a alloy 9 port 57mm barell and a 52mm hih comp crank and to my amasment the barrel is matched ported allready and stroker crank fits with 1mm gap to case will need to releve case a very small amount for rod. I thought i would have had to get a fair bit of work done on cases to fit everything. Now the barell is 5mm longer than normal and thicker sides for porting to be done it is made expecting you to do a lot of porting love it and way im thinking 180/130 port timing is this a bit high or low want power dont care about top end ill gear it later lol and understand my be a pig off the line if i go to wild as i said all new to this never done one befor but im good with motors and understand 2strokes
20171104_114709.jpg (778.28 KiB) Viewed 1202 times
Gap 1mm
20171103_132618.jpg (1.19 MiB) Viewed 1202 times
57mm 9port barell
20171103_132523.jpg (1.16 MiB) Viewed 1203 times
52mm stroker crank
20171104_065654.jpg (1.31 MiB) Viewed 1203 times
20171104_114659.jpg (867.8 KiB) Viewed 1203 times

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Re: Big bore stroker

Postby Areomyst » Wed Feb 28, 2018 4:16 pm

Hey man, this is an awesome project! I am following with great interest.

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