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I can guarantee, you will see a lot of GSF dyno'ing from now on. ;) There should be atleast 30% increase at peak bhp, after some minor changes, that I'm going to do next week: - new cylinder head & combustion chamber | 0.80mm squishclearance, 37,5% squishratio and 10,9:1 fixed compression ratio ...

Testing | 7.5.2015 GSF Dyno run #1 http://i300.photobucket.com/albums/nn8/enskapate/Top%20Fuel/GSF%20Dyno%201_zpsj2gvkgpn.png - wet airfilter (caused by carburetor problems) >> very rich jetting - bad combustion chamber design (new combustion chamber getting finished next week .. probably) - E85 fu...

Yes, there hasn't been any snow for about 3 weeks now. Thought the TSR has excellent tires now (Michelin M12 Cross Competition) , that'll have grip even on snow! I'm hoping the GoPro China Edition's mounts are arriving next week.. I bought some mounts last week, but they didn't fit. If they would ha...

Found some Suzuki RM 250 2006 parts.. - OEM exhaust chamber and silencer - Air box (bad condition) - Plastics - New rear sprocket .. All those only 110 euros including postage costs. Great deal! It looks very sure, that the TSR will be rideable at next weekend. 8-) I have been working on with the wi...

Yep, I agree. It's missing the '01--> RM125/250 airbox currently.
Looking for one.. at ebay most sellers are asking way too much of the airboxes / the postage costs are insane.

Might try to look for an older RM airbox ('96-00).. not sure how it'll fit with the newer RM plastics / rear subframe.

Got sick last weekend, so didn't start porting the cylinder. I'll start the work on Saturday. I have planned, that the TSR will be rideable next weekend.. if everything goes as I have planned. http://i300.photobucket.com/albums/nn8/enskapate/250cc%20Tessu/3832bf33-d448-4a3f-b12e-0f447deb8696_zpswsv0...

Yes, the KTM EXC 125 is the most popular of 125cc 2-stroke enduro/supermoto bikes.
The owners are quite hilarious sometimes.. "45bhp from back wheel and top speed +180km/h"

Thank you! @davedb - Well, GasGas EC 125 isn't the most popular.. but are pretty common - when compared to Suzuki TS125R or Honda CRM 125. Picked up yesterday my headlight.. Doesn't look that good on the TSR, but it'll do it's job. When I have more money for "tuning stuff", I'll probably b...

Sorry for delayed update. :| ____ Not too much has happend in two months.. mostly, because of lack of money and time. The TSR needs new 'frame pipes' for the engine, so I can be sure it'll be strong enough. The frame will be a lot stiffer and stronger without too many welds. + I'll be using 25x2,5mm...

https://www.youtube.com/watch?v=vrUJphctu3A&feature=youtu.be Running with E98 fuel at that video. With methanol/gas mix it couldn't be started with #55 pilot jet (way too cold at outside). Needs atleast #65 pilot jet. ________ @Xtreme06 - I'll take a pic for you off the RS125 caliper. Bigger sp...

It is useless, but fun. There's been now for about 2 weeks +8-11C warm.. but next week it's going to be less than +2C. It's running on 80% methanol right now (16,5% E98 gas and 3,5% Klotz 2-stroke oil). Way easier to start at below +10C. Found out, that an epoxy called Belzona 1111 resists alcohol (...

Update 16.3. _________________ I have been working on with the brakes now.. - Aprilia RS125 4-piston front brake caliper - Nissin master cylinder (front) - from KX85 - Nissin 1-piston rear brake calpier - from Suzuki TS125R - Brembon master cylinder (rear) - from KTM EXC450 All working now and it's...

http://i965.photobucket.com/albums/ae135/notadumbass/IMG_20150212_081701_zps4kfl2m8i.jpg http://i965.photobucket.com/albums/ae135/notadumbass/IMG_20150212_081836_zpsgx5ibkhl.jpg To-do: - use sledge hammer to the frame (so the engine drops a little bit lower) - weld the engine mounts - remove the or...

I noticed, that I haven't posted any pictures of the transfer channels.. after the epoxy work. http://i965.photobucket.com/albums/ae135/notadumbass/IMG_20150208_033907_zpsgegvhrae.jpg - modern cylinder sleeve shape (round instead of sharp edge) - transfer channels re-directed - transfer channels' &q...

Yeap, well the snow is melting now slowly.. the roads should be dry on next weekend. Probably going to get a video of me vs. my friend with a KTM EXC 125 '03. 8-) If there's more than 10C warm, I can use methanol.. Now I've changed 13T front sprocket. In theory it would be possible to reach 140km/h ...

Almost finished.. http://i965.photobucket.com/albums/ae135/notadumbass/IMG_20150208_042234_zpsyjpy8n3c.jpg Did a quick ride 2 days ago. Runs great, but I sold the original ignition and now trying to earn some more money, so I can buy a Malossi MHR Selettra inner rotor kit. Also, I need to buy a new...

Now I have some information of the engine.. -Exhaust port: 191,4° -Transfer ports: 121,4° -Blowdown 35,1° -Bmep: 9,6bar@8,000rpm (41,7hp) I need to measure the squishclearance (mm), squishband (%), volume of the combustion chamber (ml) and then calculate corrected compression ratio. Also I need to m...

Thanks! CR250 '04 Dyno http://i.pbase.com/u36/jdjetting1/large/39490339.CR250RDyno1.jpg As you can see, the CR produces in stock condition (expect the jettings are different) about 47,5hp@8,000-8,500rpm. I'm going to aim to 55-57hp@9,250-9,800rpm with E85 fuel. -higher compression 8,8-9,5:1 correcte...

Thank you! Doesn't look like a bike from the '90s?
It's going to look way better on next week with a RM125 subframe (aluminium) and all the plastics attached.. + the YZ engine and HGS exhaust chamber.

Need to sell some parts, so I can buy the Doma Racing silencer.

Yea, well.. other option would be to ride the Derbi. :lol: Today I picked up the RM gas tank and plastics.. their in okay condition. A little bit cleaning and they'll be nearly perfect. Also got a smoke tinted LED tail light. I didn't get the TSR engine out.. it's quite a bit challenge to get it out...