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Forum: Ninjettes At Speed August 28th, 2022, 09:16 AM
Replies: 143
Views: 6,560
Posted By petrolhead
We measured the suspension sag . Front is OKish,...

We measured the suspension sag . Front is OKish, rear too stiff. I lowered the rear one click, raised the front by 11mm to about stock height. My fork oil level question had to do with this. My...
Forum: Ninjettes At Speed August 28th, 2022, 02:06 AM
Replies: 143
Views: 6,560
Posted By petrolhead
I have a long list of actually neccessary things...

I have a long list of actually neccessary things I need to do on the bike. But, I'm planning on making the silencer bracket from titanium so save weight. :)
Forum: Pictures August 27th, 2022, 06:46 AM
Replies: 2,621
Views: 484,997
Posted By petrolhead
Random pic that happened to be on the phone. ...

Random pic that happened to be on the phone.
Building it hasn't been an exercise in aesthetics.
Forum: Ninjettes At Speed August 26th, 2022, 08:51 AM
Replies: 143
Views: 6,560
Posted By petrolhead
When I repaired the front forks I set the oil...

When I repaired the front forks I set the oil level to exact factory specification. If I were to run more oil in them, how much is safe?
Forum: Ninjettes At Speed August 21st, 2022, 09:03 AM
Replies: 143
Views: 6,560
Posted By petrolhead
The ergonomics have some what changed from stock...

The ergonomics have some what changed from stock :D
Forum: Ninjettes At Speed August 20th, 2022, 10:54 PM
Replies: 143
Views: 6,560
Posted By petrolhead
You are correct. I'm all about measuring and...

You are correct. I'm all about measuring and calculating stuff. I googled a whole lot ITB sizes for different engines and ran the figures to get some idea. Namely about how much cross sectional area...
Forum: Ninjettes At Speed August 20th, 2022, 12:07 AM
Replies: 143
Views: 6,560
Posted By petrolhead
You are talking about carburetor which I...

You are talking about carburetor which I undestand are 30mm a piece. Injection ITBs are 28mm. Difference in cross sectional area is (30/28)² , right? That's almost 15% more.

Edit. We were at the...
Forum: Ninjettes At Speed August 19th, 2022, 04:06 AM
Replies: 143
Views: 6,560
Posted By petrolhead
What kind of engine power or RWHP have people...

What kind of engine power or RWHP have people gotten with the stock ITBs, which are 28mm? I'm not completely sure whether they'll be a restriction.
Forum: Ninjettes At Speed August 9th, 2022, 11:50 AM
Replies: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 14
Views: 385
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: 143
Views: 6,560
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: 14
Views: 385
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: 14
Views: 385
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: 14
Views: 385
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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: 143
Views: 6,560
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.
...
Showing results 1 to 25 of 114

 
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