The Notso Special

[Flika]

lol @ VW beatle damper
Looks great!

Well spotted


Who's tha chimp?

Jakey off the UK FS1e site

[Flika]

Well I'd love to say it started first kick but unfortunately not but with a chain and a bit of pushing up she came, sounds very nice and revs up like a beast but very very lean, so much so it wanted choke for about 20 mins before it would run without and even then was very fluffy and flat but pull out the choke and bam revs right up instantly. Strange thing is I thought I'd set up the ignition as per HPi instructions but needed to advance it a long way to make it run nice, now I've run out of adjustment so need to remove the rotor and re-position it and start again. I think the rotor (which has no key way) must have moved when I tightened it we'll see on Monday. Smokey pics for ya.

[Flika]

I spotted this nearly new 21mm Delorto on Eblag at Christmas and although it's 1mm bigger internally it's only about half the size externally so with a bit of messing around I can get it pretty much behind the original casing, and luckily it fits straight on the tube where the YB one came off.



There was no way that even with uprated springs and the thinnest oil the clutch was going to hold and luckily 50cctuning has developed a 3 plate conversion which is a real result and works great. Markg is running one to now.



The Dellorto was somewhere near but the power curve was way wrong still so I loaded the ped up and hit the road to doncaster with Jakey as co-pilot, Darrell soon ironed out the bugs and we hit 11.2bhp with the aid of a different pipe which also had the added bonus of flattening out the torque curve and wideninig the powerband. I was really after 12hp but there are a few tweaks I can make and should get there next time.



This pipe known as the V2, here in action



I decided that to ensure the new exhaust was mounted perfectly on the cylinder I would spigot mount it and make some kind of rebate so the tube sat inside the end of the port to aid with this. Having no access to milling machines or the like I looked outside the box and came up with this idea, grinding burr in the Demel and a washer to act as a stop.

[Flika]

Worked a treat as well, for a change.



Not a very good pic of it but you can just see the tube which is inserted 15mm into the cylinder. i pulled a couple of coils out from the inside of the exhaust ring so it now sits on the tube and ground out a repair washer to braze on to make the stop, I'll now have a downpipe that fits exactly right on the cylinder and a gas tight seal hopefully.



Here's the V2 pipe as it come's absolutely no chance of getting it on a Fizz without mods.



Here again after some heating and bending and more than a little cutting and shutting, now I'm exhausted. :-/ Still in desperate need of some grinding.

[YamaSam]

have got sound footage of the tests?

can't wait for my first readout

[Tombo]

Holy crap, almost 12 hp!! Maybe the fastest fizzy in europe?

[Flika]

I'm confident it'll make over 12hp next time,we'll see.

[Niels]

Wow! Really nice performance!!
I am also anxious to hear it

[brake-dust]

i recon 14 is achieveable, just a case of playing

[Flika]

The V2 pipe has an inherrant problem (apparently) of the stinger breaking off and this one had been repaired and reinforced with some angle steel, functional but looked pooh, I figured there must be a way of making the strengtheners so that they looked good, I came up with this. I made a couple of templates from card and cut these little fillet pieces from 3mm steel, and drilled them out for a massive weight saving :blink:



I then welded them on like so and I like the result, hopefully tomorrow will see an exhaust downpipe and castle nut turn up in the post and I can make some brackets and finsh the exhaust off.

[mpro09]

[rise and shine]

je valt in de herhaling

[Yamaha rd50m]

je valt in de herhaling

you fall in repeat

[rise and shine]

je valt in de herhaling

you fall in repeat

met je steenkolen engels

Looks good though

[PD]

whats the sice of you piston?