JOHNBOY wrote: ↑Sun Mar 29, 2020 9:05 pm
give us a link on ebay please
It’s not an eBay thing this one. I’m not even sure if this will work but..... from what I have found out so far, the Vision 110, in fact most 110cc scooters and some small valve 125’s like the MSX125 (grom) and the CB125F to name a few use the same fuel injector. It’s a Keihin type ‘B’ 90cc unit which is used in the Vision’s case with a small 22mm throttle body. Now I know it’s a closed loop type system that works out it’s own air/fuel ratio but there’s something telling me that these small capacity engines are being forever more restricted for emissions regulations and there must be a little more to be had on the performance front. So, if I fit a slightly larger throttle body (24mm) up to the size of the manifold opening, I should get more air into the engine and with that I will fit a 120cc injector to give the engine the extra fuel it needs. I’m not looking for much but a bit more punch at the top end would be nice.
If you want to do your own research, the company I have purchased the throttle body and injector from is called Yuminashi and from the emails we have had back and forth this past week, they seem to know their stuff.
To give you an example of what they have been like to deal with, Honda wanted me to buy a complete throttle body at £200 plus this week when all I wanted was the throttle position sensor. YUMINASHI sold me that sensor standalone for £16.50 and it’s a genuine Keihin one. My new throttle body, again a genuine Keihin unit with both sensors (fast idle solenoid and TPS) was just £65.00 and my total spend after buying some other goodies was around £120 posted.
So it’s a bit of a project that might make the Vision run a little nicer even if performance gains aren’t made and I’m itching to give it a go so we will see in a week or so if it works.
Scoots