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Old 01-31-2013, 11:39 AM   #1
millsc   millsc is offline
 
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first true 50mm ive seen

I got my kit in today from ebay scooter-parts 1 its a true 50mm kit all the others have been 48mm downside the head doesn't have the bigger valves like 02starider and robotechlegacy's kits have. So i won't be running the 24mm carb with it, not sure i will run the exhaust either. The mod on the roketa has begun i'll update when done.
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File Type: jpg IMG_20130131_103423.jpg (94.9 KB, 21 views)
File Type: jpg IMG_20130131_103417.jpg (77.0 KB, 14 views)
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B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft



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Old 01-31-2013, 11:52 AM   #2
lovemy2strokes   lovemy2strokes is offline
 
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The kit from starrider was a 50mm that I got, I didnt notice bigger valves tho just a different style head I thought. I have one of the heads here also Ill go look.
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Old 01-31-2013, 11:55 AM   #3
millsc   millsc is offline
 
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You want to sell or trade heads? starriders piston was 49mm i believe.
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B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft



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Old 01-31-2013, 11:56 AM   #4
lovemy2strokes   lovemy2strokes is offline
 
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My head looks the same as the one in the picture. I just got another head from starider.
Ill upload the pic to photobucket in a sec, but its going to look just like yours.
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Old 01-31-2013, 11:57 AM   #5
millsc   millsc is offline
 
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The ones i done from starrider and robotech the valves measured bigger by a few mm. The 50mm heads that is.
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B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft



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Old 01-31-2013, 12:04 PM   #6
millsc   millsc is offline
 
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staridder piston its short by a few mm
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File Type: jpg IMG_20130131_110022.jpg (94.7 KB, 11 views)
__________________
B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft
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Old 01-31-2013, 01:03 PM   #7
lovemy2strokes   lovemy2strokes is offline
 
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Id have to tear that engine back apart but mine measured 50mm to the T. I always check everything from ring gap to crank run out when I rebuild.


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Old 01-31-2013, 01:05 PM   #8
lovemy2strokes   lovemy2strokes is offline
 
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The head needs to be planed in my opinion from starider. Theres more imperfections in the casting than most kits.
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Old 01-31-2013, 01:35 PM   #9
lovemy2strokes   lovemy2strokes is offline
 
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If youre coming up to St Louis anytime soon Ill give you another 50mm head from starider that I took off in place of a hoca head, the guy ran it maybe for 3-400 miles. Ill be leaving for Montana on a plant observation on Sunday to next Thursday but I can always leave it somewhere or give it to someone you know here in St Louis.
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Old 01-31-2013, 01:38 PM   #10
millsc   millsc is offline
 
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the valves look bigger on yours, the head i just got has 18/16 valves.
__________________
B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft
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Old 01-31-2013, 01:44 PM   #11
millsc   millsc is offline
 
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compare the pics
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__________________
B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft
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Old 01-31-2013, 02:52 PM   #12
lovemy2strokes   lovemy2strokes is offline
 
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Ill get out my good ol measurin stick later on
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Old 01-31-2013, 02:54 PM   #13
millsc   millsc is offline
 
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the valves probably are at least 19mm, i'm not going to attempt to run a 24mm carb with the small valves.
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B.A.M.F. tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears
9.25 gram dr pulley sliders koso variator 1.5k torque spring
orange coil orange unlimted cdi
uni filter
gates premium belt
2012 taotao vip cy50a scrappys 110cc big bore kit 52mm "88cc"
100 main jet 38 idle iridium plug custom paint, leds and decals alarm system
naraku hd crankshaft
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Old 02-04-2013, 01:50 AM   #14
suddethtray   suddethtray is offline
 
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i got same kit mine is 50mm and doin great
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Old 02-04-2013, 04:35 PM   #15
buford1488   buford1488 is offline
 
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http://www.scootdawg.net/attachment....1&d=1360013294

now lets get real..you say hoca and ebay stuff is the only place that has a true 50mm head.....now this is a TRUE performance head big valves-3-angle valve seats-port by hand- detailed bowl porting-profiling. trust me when i tell ya this is the only true performance head out there... that stuff you got there is nothing on this.........buford
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