July 17th, 2023, 10:23 AM | #161 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Note to myself. 27 laps around Pesämäki is 4,5 liters of 98E5 gasoline, 38 laps is ~6,5 liters. Including warming up the thing in the morning, outlaps and inlaps.
With bit less an a liter in the tank works fine. |
1 out of 1 members found this post helpful. |
July 19th, 2023, 12:06 AM | #162 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I ordered this, hasn't arrived. Interested in how that changes things.
Thinking of ways to make the thing faster. The more speed I can coax out of it, the further I can delay getting a 600. There's the muffler bracket v. 1.1 |
|
July 19th, 2023, 05:11 PM | #163 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
|
Are you allowed engine upgrades?
Very, very easy to install 300 crank with ZX-6R pistons... Now we're talking 45bhp... Same as Ninja 400... very, very fast... with 150kg bike... |
1 out of 1 members found this post helpful. |
July 19th, 2023, 09:28 PM | #164 | |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Quote:
I'm not looking to go crazy with the engine when/if that time comes. I think higher compression ratio and retarding the intake cam could be workable stage 1 solutions. Maybe come up with some sort of header without the H pipe. Last futzed with by petrolhead; July 19th, 2023 at 10:51 PM. |
|
|
July 20th, 2023, 11:20 AM | #165 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
There it sits. Installation itself is simple enough. The instruction talks about bluetooth connection which I spent a lot of time trying to establish. Until it turned out this is a Wifi model, yay. I finally got it working on the stands.
For future fiddling, the set could lose about 2 metres of wiring if integrated to the bike's harness properly. Last futzed with by petrolhead; July 20th, 2023 at 01:04 PM. |
|
July 20th, 2023, 11:39 PM | #166 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Just for starters, I haven't even gotten around to delete the cat from the pipe. There could be 0,07 hp there plus more problems with noise limits.
|
|
July 22nd, 2023, 01:07 AM | #167 | |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Quote:
Currently at Ahvenisto track doing setup for the shifter and apparently chasing a ZX-10R. Once I got the cut time and sensor threshold adjusted, rider reported that the quick shifter improves things. 30% seemed good, bike vibration alone causes 8-10% signal. 95 milliseconds worked, 85ms caused a jerk he told me. Again, lap time much improved from last time. Last futzed with by Alex; August 3rd, 2023 at 01:11 PM. Reason: Fixed youtube link. Just put the video ID between the youtube tags, not the whole URL. |
|
|
July 23rd, 2023, 11:07 AM | #168 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Current specs
Recap of the current specs:
- race fairings, DIY foam seat from a camping mattress -Michelin Power Cup evos(110 & 140), Bstone R11 mediums in storage -13/47 sprockets (14,15, 43,46,48 in storage) - ~0,5kg Unibat ULT 1 battery -1,5kg DIY muffler v 2.0 -0,19kg titanium muffler bracket -DIY rear sets -tank grips -some cheap clip ons with soft Renthal grips -Front brake Brembo P30/34 caliper, stock disc -Braking 16mm radial master cylinder - ~8% quicker throttle -about 137kg with 3 liters of fuel. Nonessential wiring and most brackets deleted. Kickstand, its bracket and aux parts deleted. Back part of frame cut, replaced with lighter tubing. -Stock suspension, bit thicker oil in forks. -Rear wheel pushed as far forward as it can fit. -Ignition lock deleted -Replacement engine, supposedly was ridden 9800km when bought. -Healtech IQSE W quick shifter -Racechrono pro, Garmin Glo GPS. Last futzed with by petrolhead; July 23rd, 2023 at 11:11 PM. |
|
July 25th, 2023, 11:06 AM | #169 |
ninjette.org member
Name: Super
Location: NC
Join Date: Feb 2009 Motorcycle(s): k6 GSX-R 750, 2008 Ninja 250R Posts: 27
|
We tried to go to Kymiring last year for MotoGP. Bummer it got cancelled, but good to se you are getting after it!
|
|
July 25th, 2023, 11:09 AM | #170 | |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Quote:
Rear tyre warmer was suspect. Bit of re wiring and half an hour of sewing, done. Heats up quickly a spare tyre I tested. |
|
|
August 1st, 2023, 09:16 AM | #171 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I bought a used GSXR 600 rear shock. See what happens then that arrives. Wasn't expensive.
|
|
August 2nd, 2023, 10:57 AM | #172 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
The service manuals for 250R and 300 list exactly the same degrees, timing and height for both cams. Am I correct to assume they're the same between models?
Last futzed with by petrolhead; August 3rd, 2023 at 09:13 PM. |
|
August 7th, 2023, 06:51 AM | #173 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Being the safety-Sally that I am, I noticed that the current suits hip armours were very thin and flimsy. I sewed on thicker ones I had left over from some Alpinestars gear. Rider said they're unnoticeable when riding. Quite a hassle to sew them between the leather and inner lining.
Yesterday we were at Motopark. The shifter wouldn't co-operate. The bike does 157km/h and no more. The track has a 4th gear corner exit followed by 1000 metres flat out. That really reveals small bike's limitations. Most tracks in Finland are twistier. Camera mount **** the bed so I'm not sure if anything is uploadable. Best time was 2:03 which I think is OK this being his first time there. Mid day I changed 47 to 46T rear sprocket, he was pretty close to limiter in 6th. Last futzed with by petrolhead; August 18th, 2023 at 07:12 AM. |
|
August 9th, 2023, 12:31 PM | #174 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I just realized I'll have to cut/modify the airbox to make room for the shock.. oh well.
|
|
August 12th, 2023, 11:41 PM | #175 | |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Quote:
Also lowered mounting would lessen the need to cut the airbox. I'm a firm believer in airboxes, plenums and such. Unedited random clip from Motopark without data. His fastest lap isn't on that video. https://youtu.be/0MI19IpeTfs Last futzed with by petrolhead; August 13th, 2023 at 03:15 AM. |
|
|
August 17th, 2023, 07:21 AM | #176 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Note to myself. The GSXR spring is 213mm , 64mm ID, 87ish mm OD.
Last futzed with by petrolhead; August 17th, 2023 at 08:48 AM. |
|
August 18th, 2023, 10:18 AM | #177 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Does anyone know of a cheap spring for the gixxer shock? K-tech makes them , 64-210-XX but there must be cheaper alternatives than 120€ for a piece of wound steel wire. I'm looking for a ~8kg/mm spring. That'd be about 450lb/in.
20th Aug edit.. We got the shifter working. I'd previously tried to shorten the cut delay which made things worse for some odd reason. Now, I lengthened the delay to 25ms with 110ms cut time and seems to work perfectly. Go figure. Some shaky footage from today. New personal best lap, which is number 31. https://youtube.com/watch?v=7QzdP3q1AkI&feature=share9 Last futzed with by petrolhead; August 21st, 2023 at 09:28 PM. |
|
August 22nd, 2023, 12:18 PM | #178 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I ended up ordering the K-tech 64-210-80 spring. Once that arrives I'll post some pics of the shock project.
|
|
August 23rd, 2023, 07:00 AM | #179 |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
|
I may have just broken my femur watching that video!! Those walls!!!!
|
|
August 23rd, 2023, 10:45 PM | #180 | |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
Quote:
The shock lower end was a pain in the ass to disassemble without instructions. Took a lot of soaking, hammering and an induction heater to break a part the aluminium piece and spring plate. Difficulty being that they couldn't be removed from between other parts before broken apart. Here rust removed and painted with the first primer and color that were on the shelf. Last futzed with by petrolhead; September 12th, 2023 at 11:35 AM. |
|
|
August 24th, 2023, 06:11 AM | #181 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
That's all the oil that came out. Surprisingly little?
Different sources recommend different oil so I decided to try this one: Last futzed with by petrolhead; August 31st, 2023 at 02:10 AM. |
|
August 25th, 2023, 07:27 AM | #182 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
A very special tool for filling oil/getting rid of air. A cut bottle with rubber glove fingers as sealing. I rotated the compression valve thing all the way to open position and kept it under oil til I screwed it on. 30Nm tightness. It was less than 25Nm on in the beginning. The shock had 4 bar pressure when I got it. I filled now to 10,5 bar nitrogen, see how that works. GSX-R service manual doesn't give any value for it.
Last futzed with by petrolhead; August 27th, 2023 at 01:33 AM. |
1 out of 1 members found this post helpful. |
September 12th, 2023, 01:44 AM | #183 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I ordered the softer K-tech spring. Been on it's way from England for close to three weeks.
Dont try this at home. I tried to measure how much the new/old spring compress under equal force. Didnt get any intelligible numbers. Seemed like there's not much difference between them. Last futzed with by petrolhead; September 16th, 2023 at 04:48 AM. |
|
May 27th, 2024, 10:59 AM | #184 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I test fitted the gixxer shock. Found to my surprise that the stock one is shorter. Very little clearance for the spring through swing arm, similar findings anyone?
The airbox needs cutting to fit, hopefully all on the unfiltered size of it. We've only been on track once this year so far, thanks to finnish spring (=18cm snow fall in end of April). |
|
May 29th, 2024, 03:21 AM | #185 |
ninjette.org member
Name: Jarno
Location: Finland
Join Date: Aug 2021 Motorcycle(s): 2009 Ninja 250R Posts: 150
|
I moved the upper link hole a bit further back to clear everything, and a bit lower to achieve desired height without adding any preload. And I ground the swing arm corners a bit for clearance.
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[superbikeplanet.com] - Reigning XR1200 Champ Barnes Looking For Sponsors To Help Fin | Ninjette Newsbot | Motorcycling News | 0 | July 1st, 2013 01:40 PM |
[roadracingworld.com] - Updated: Moto2 Race At Mugello Is Three-Way Battle To The Fin | Ninjette Newsbot | Motorcycling News | 0 | July 3rd, 2011 10:40 PM |
Sneak peek : hi flow copper fin peformance radiator | dlres | 2008 - 2012 Ninja 250R Tech Talk | 12 | July 2nd, 2011 05:55 PM |
[roadracingworld.com] - Team Suzuki Alstare's Fabrizio Looking For Another Podium Fin | Ninjette Newsbot | Motorcycling News | 0 | March 21st, 2011 12:50 PM |
[roadracingworld.com] - Even More Previews Of This Coming Weekend's MotoGP Season Fin | Ninjette Newsbot | Motorcycling News | 0 | November 3rd, 2010 09:30 AM |
|
|