try another zaust
| Apriliaforum.nl https://apriliaforum.nl/ |
|
| Aprilia af1 70cc top speed about 105kmh(65mph) https://apriliaforum.nl/viewtopic.php?f=8&t=9826 |
Pagina 1 van 1 |
| Auteur: | Aprilia af1 [ zo apr 27, 2008 11:35 pm ] |
| Berichttitel: | Aprilia af1 70cc top speed about 105kmh(65mph) |
Hi i have an aprilia af1rv6ap engine with a polini 70cc aluminium cylinder etc, standard exhaust, and igniton, 19mm carb with 74 main jet and 15,40 gearing, does anyone know why i can only get 65mph/ about 105kmph? Also it only revs to 9000rpm at this speed how can i make the bike rev more/go faster? Thanks for any help and replies, also i have a spare cylinder which is malossi which i could port to make it go faster and to get use to porting if i decide to port the polini, any help on porting to get more revs and power would be appreciated. Thanks again. |
|
| Auteur: | *Thomas* [ zo apr 27, 2008 11:44 pm ] |
| Berichttitel: | |
try another zaust
|
|
| Auteur: | Itakura [ ma apr 28, 2008 12:01 am ] |
| Berichttitel: | |
yes, the exhaust makes you go slow... buy a secondhand otherone or new, make sure the diameter of the front piece that goes into the cilinder is about 27mm up to 32mm. you'll have to put in a larger main jet though 
good luck
|
|
| Auteur: | Aprilia af1 [ di apr 29, 2008 6:23 pm ] |
| Berichttitel: | |
Thanks for the help, what about a bigger carb will this help me build up the revs and get more power? |
|
| Auteur: | Itakura [ di apr 29, 2008 6:27 pm ] |
| Berichttitel: | |
np  a bigger carb will only make you rev up to higher rpm. the power will be the same. I think a 19mm carb is fine but the exhaust is your main problem
if you want an other carb i suggest you go for a 21 or a 24 mm carb, higer would be okay too but it's not very economical (it uses even more fuel and delivers only a little more power) |
|
| Auteur: | Aprilia af1 [ wo apr 30, 2008 5:04 pm ] |
| Berichttitel: | |
Thanks again for the info, thought my carb and exhaust may limit the revs and speed, i will see about getting a different carb and exhaust . |
|
| Pagina 1 van 1 | Alle tijden zijn GMT + 1 uur [ Zomertijd ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|