Search found 214 matches
- Sun Mar 27, 2016 1:09 pm
- Forum: Vespa Tech
- Topic: Clutch Slip Fix - plates & springs
- Replies: 2
- Views: 722
Do you think your scooter is only 25% faster than standard? ;) I have had similar issues with mine. Tried many combinations but in the end it's all about the springs. I suggest to just get a set of these XXL from SIP and it will never be an issue again. http://www.sip-scootershop.com/en/products/clu...
The old non autolube P200E used to have a 48/140 idle jet. The 55/160 can be a bit rich for some, even standard no two engines are exactly the same. First jet I would try would be a 52/140. The mixture screw will need to be re-adjusted to get the slow running correct.
I'm sure someone said this before on here but getting the SI pilot jet right is not so simple. The next jet weaker from 55/160 on a P200 is not 40/120 thats for sure.
Proving the rule that advancing the timing will need bigger jetting!lambro wrote:I run all my tuned Vespa's at 16.soulboy wrote:keep the timing stock someone on here told me to change it when i put a malossi on it and it cost me a piston
More than just timing that can hole a piston.
Sounds to me like Fastfrog was first talking about port timing. If you want it to go as fast as possible then a 1.5mm base gasket. For city riding a 0.5mm base gasket. Decide what kind of riding you want it for, then get the head sorted to give a squish of no more than 1.0mm.
The mixer tube does the same job as the needle and atomiser in a PHBH or similar. Once you work out whats what, then tweeking the mixer tube by drilling a few more holes in the right area does the trick for tuned engines.
I still have the carbon plates in mine and they are great. No slip or judder I think the springs are the issue with yours. Just strong springs are not enough. I have ten of the SIP XXL springs http://www.sip-scootershop.com/en/produ ... a_93122000
- Wed Sep 17, 2014 7:24 am
- Forum: Vespa Tech
- Topic: Engine Build - Advice needed
- Replies: 18
- Views: 4495
Did you up 2nd gear too? If not it will be quite a jump between 2nd and 3rd, like an old 3 gear V90 ;) At least its one way to get over the pulling in 4th issue. Richjak, What I do is install a standard 65 ring gear then it is possible to use a 21, 22 or 23 clutch to easily change the gearing withou...