80cc Cylinder G4

Lukesky36

Active Member
Joined
Oct 3, 2018
Messages
311
Found it on Ebay So can anyone explain what the idea behind cutting the transfer ports out?
s-l640.jpg
 


Jag

Member
Joined
Oct 6, 2018
Messages
135
It was an older style, I think. I had a bike berry cylinder like that. It wears down rings faster, and allows for better flow.
 

Spare_Parts

Well-Known Member
Joined
Nov 29, 2017
Messages
985
That is the Flying Horse cylinder. It is supposed to allow more flow. The part in the middle of the transfer is to help with ring wear. Never used one yet.
 

Sumsloppymeet

Active Member
Joined
Aug 7, 2017
Messages
435
ive actuaally got one of those right now ported it some widened the split exhaust some matched it with the crankcase i polished like a mirror almost ill probably have it back together in a day or so i was curious bout the same thing hes offering steel bore ones now too if im reading right
https://www.ebay.com/itm/BLACK-Upgraded-80cc-8mm-wider-intake-port-40mm-cylinder-STEEL-BORE-G5/143030409160?_trkparms=aid=111001&algo=REC.SEED&ao=1&asc=20160908131621&meid=72fd948f9a9947808e3a516c8a7b9f37&pid=100678&rk=6&rkt=15&mehot=es&sd=222841509473&itm=143030409160&_trksid=p2481888.c100678.m3607&_trkparms=pageci:77514b75-0a18-11e9-bc66-74dbd1803d0a|parentrq:f16b00991670aa11adc4d6b3fff416a4|iid:1
 
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