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Forum: Ninjettes At Speed August 9th, 2022, 11:50 AM
Replies: 132
Views: 5,172
Posted By petrolhead
I'm not looking for the very last hp and cost be...

I'm not looking for the very last hp and cost be damned. Nor am I ready yet to start hunting the last possible cc:s from this engine. My calculator says the engine makes 20,7 Nm @ peak power revs,...
Forum: Ninjettes At Speed August 8th, 2022, 11:36 PM
Replies: 132
Views: 5,172
Posted By petrolhead
Does anyone have an opinion which are better,...

Does anyone have an opinion which are better, Wiseco or JE +2mm pistons? I read somewhere that they're heavier than original? Can't find the info right now.
Edit.. JE pistons are apparently 140-148...
Forum: Ninjettes At Speed August 7th, 2022, 08:46 AM
Replies: 132
Views: 5,172
Posted By petrolhead
The rider mentioned that the throttle travel...

The rider mentioned that the throttle travel feels long/difficult on certain spots of track. So..

14,90€ minus company discount, throttle tube with a set of cams/rings whatddoyacallem. I had...
Forum: General Motorcycling Discussion August 6th, 2022, 12:36 AM
Replies: 13
Views: 227
Posted By petrolhead
Surely they can out do anything from the past....

Surely they can out do anything from the past. The bikes are designed for your everyday Joe and Janet. Small bike is a high volume model. So if 1% of buyers find some aspect of the bike too extreme,...
Forum: Ninjettes At Speed August 5th, 2022, 12:05 PM
Replies: 132
Views: 5,172
Posted By petrolhead
I was familiarizing myself with stuff related to...

I was familiarizing myself with stuff related to swapping the engine. The new motor came without clutchparts, stator etc.
Now the factory manual says the clutch outer basket needs to match the crank...
Forum: General Motorcycling Discussion August 5th, 2022, 12:27 AM
Replies: 13
Views: 227
Posted By petrolhead
My ability to put the power down to tarmac is...

My ability to put the power down to tarmac is very limited. I'm always more concerned about the power delivery than peak numbers. I can get more real world speed with practising my driving/riding...
Forum: General Motorcycling Discussion August 4th, 2022, 10:28 AM
Replies: 13
Views: 227
Posted By petrolhead
Don't mind me. I'm limited in my thinking when it...

Don't mind me. I'm limited in my thinking when it comes to motor vehicles. Motorcycle at it's best is designed to a certain design targets. Cost, simplicity, weight, target horsepower.
4 cyl 400cc...
Forum: General Motorcycling Discussion August 3rd, 2022, 08:24 AM
Replies: 13
Views: 227
Posted By petrolhead
4 cylinder 400cc. Thats not the simplest,...

4 cylinder 400cc. Thats not the simplest, cheapest or lightest way to make 50-60 hp.
Forum: Ninjettes At Speed August 2nd, 2022, 11:51 PM
Replies: 132
Views: 5,172
Posted By petrolhead
Current specs

Since I cant edit the opening post, here's a recap of the current specs:
- race fairings, DIY foam seat from a camping mattress
-Michelin Power Cup evos(110 & 140), Bstone R11s in storage
-13/48...
Forum: Ninjettes At Speed July 26th, 2022, 05:44 AM
Replies: 132
Views: 5,172
Posted By petrolhead
spSmtRESAGw I could swear replacing the...

spSmtRESAGw

I could swear replacing the front warmer's power cord with a thick one with good connections made it heat up better.

I haven't got previous years' data available anymore, but...
Forum: Ninjettes At Speed July 25th, 2022, 03:57 AM
Replies: 132
Views: 5,172
Posted By petrolhead
Closest possible gearing is the answer for...

Closest possible gearing is the answer for karting tracks. Rev drop between 1-2 is massive. 2-3 is a lot better, noticeable everywhere.

We're currently at Pesämäki circuit. So far 3 seconds...
Forum: Ninjettes At Speed July 24th, 2022, 02:57 PM
Replies: 132
Views: 5,172
Posted By petrolhead
Google maps link to the karting track we call our...

Google maps link to the karting track we call our home circuit.
https://maps.app.goo.gl/HdAGKoSMujQDJKbp7

Narrow, short, twisty. Great for training riding technique. 8 metres elevation change in...
Forum: Ninjettes At Speed July 20th, 2022, 01:48 AM
Replies: 132
Views: 5,172
Posted By petrolhead
The two sets of warmers I have, were bought...

The two sets of warmers I have, were bought second hand. And they're not the most hitech to begin with.
When we get to trackside, putting them on is the first thing I do. Front goes on first and...
Forum: Ninjettes At Speed July 17th, 2022, 04:57 AM
Replies: 132
Views: 5,172
Posted By petrolhead
Budget limitations mean I'm also the team's...

Budget limitations mean I'm also the team's seamstress and electrician.
Forum: Ninjettes At Speed July 15th, 2022, 03:29 AM
Replies: 132
Views: 5,172
Posted By petrolhead
Despite looks, the grip material works fine. ...

Despite looks, the grip material works fine.
Tyres : I was skeptical whether he'd notice the difference between a good 2-compound tyre and a race tyre. Right out of the gate he was quick, said the...
Forum: Ninjettes At Speed July 13th, 2022, 11:14 AM
Replies: 132
Views: 5,172
Posted By petrolhead
The end result with the grip tape is ugly as a...

The end result with the grip tape is ugly as a wheelchair. I cut the patterns after a few beers :D.
Hopefully they work. This is not a show bike.
I installed them using an activator solution for...
Forum: Ninjettes At Speed July 11th, 2022, 05:17 AM
Replies: 132
Views: 5,172
Posted By petrolhead
Bit of an oops moment today at the track. No...

Bit of an oops moment today at the track. No damage to body, bike or mentality. Riding gear did what they're supposed to. The rider continued and posted his best lap of the day after the slip up.
...
Forum: Ninjettes At Speed July 11th, 2022, 04:53 AM
Replies: 132
Views: 5,172
Posted By petrolhead
Just air :). The temperatures we ride i are...

Just air :). The temperatures we ride i are anything between +15°C and 30°C
Forum: Ninjettes At Speed July 10th, 2022, 01:29 PM
Replies: 132
Views: 5,172
Posted By petrolhead
Does anyone have hot pressure recommendations for...

Does anyone have hot pressure recommendations for above mentioned tyres?
I found some values, but if you can recommend from experience that'd be appreciated.

futz: the racer's awesome father who...
Forum: Ninjettes At Speed July 9th, 2022, 02:00 PM
Replies: 132
Views: 5,172
Posted By petrolhead
OLXclrfZKz0

OLXclrfZKz0
Forum: Ninjettes At Speed July 9th, 2022, 02:33 AM
Replies: 132
Views: 5,172
Posted By petrolhead
Video or even viewing trackside doesn't do...

Video or even viewing trackside doesn't do justice to the very sudden elevation changes at Akaa track. Jeez.

..aand my son has 3 seconds on me there. Speed data comparison was cruel. I will not...
Forum: Ninjettes At Speed July 8th, 2022, 10:03 PM
Replies: 132
Views: 5,172
Posted By petrolhead
You have a lot of tracks to choose from...

You have a lot of tracks to choose from :clapping: .
Forum: Ninjettes At Speed July 8th, 2022, 10:12 AM
Replies: 132
Views: 5,172
Posted By petrolhead
I decided that I must test the track at Akaa...

I decided that I must test the track at Akaa myself. The fast section looks very tricky. Can't give riding instructions if I haven't ridden it myself.
Forum: Ninjettes At Speed July 4th, 2022, 06:52 AM
Replies: 132
Views: 5,172
Posted By petrolhead
In the United States engine parts and stuff like...

In the United States engine parts and stuff like that are way, way cheaper. But.. add shipping cost, customs (what ever they decide to charge, import tariffs are a lottery) and VAT. Not worth it...
Forum: Ninjettes At Speed July 4th, 2022, 03:25 AM
Replies: 132
Views: 5,172
Posted By petrolhead
I put this on order, see what we get.

I put this on order, see what we get.
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