Search found 29 matches

by sno-bro
Fri Jan 01, 2016 5:34 pm
Forum: General Chat
Topic: Punsun V2 Diesel/K750.
Replies: 1
Views: 825

Re: Punsun V2 Diesel/K750.

I removed the rear seat and replaced it with a small cargo rack. I never liked the lines with the seat, now I feel the bike looks longer and sleeker. For a while I didn't have anything on the rear fender and that looked cool too, very low rider. Bike below in its new form. Sno-bro https://uploads.ta...
by sno-bro
Sat Nov 09, 2013 8:03 pm
Forum: ENGINE RELATED TOPICS
Topic: Punsun starter upgrade - Beware!!
Replies: 8
Views: 3531

Re: Punsun starter upgrade - Beware!!

hi,

You mean the geared starter?

Try sales sales@vtwinengine.com. He was very helpful.

The actual sale was through aliexpress.com, you can see the geared starter for sale there. Don't be shocked with the price, you'll negotiate it separately and it was not as bad as it seemed :-)

sno-bro
by sno-bro
Mon Jul 01, 2013 6:34 am
Forum: BIKE BUILDING Threads
Topic: Diesel Dnepr from Ukraine
Replies: 20
Views: 9575

Re: Diesel Dnepr from Ukraine

great looking bike! Congratulations! You have the newer Dnepr gearbox, I think a fifth gear can be installed in place of the reverse? And you can also get faster third and fourth gears, or change the rear drive to something faster like 9/35. I have had some problems with vibrations with mine so bewa...
by sno-bro
Mon Jun 17, 2013 8:47 pm
Forum: BIKE BUILDING Threads
Topic: Diesel Dnepr from Ukraine
Replies: 20
Views: 9575

Re: Diesel Dnepr from Ukraine

Looking good! A bit similar to my bike. I'll be following with interest.

Keep up the good work!

sno-bro
by sno-bro
Mon May 20, 2013 6:07 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build with questions

Hi,

yes I did. You can see some pictures in the following discussion:

http://www.suckindiesel.com/thingy/view ... =31&t=2301

the discussion includes a link to a short video.

The bike still runs fine! Although it does leak some oil and fuel that I need to attend to.

sno-bro
by sno-bro
Mon Sep 17, 2012 6:48 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build completed
Replies: 24
Views: 7847

Re: Punsun Dnepr build completed

A short wrap up on my first (short) season with my diesel bike. The summer here was very wet and cold so I didn't ride as much as I'd like, but I did do around 500km total. Relatively comfortable 80kmh cruise, although I'll look into making some vibration damped handlebar holders. No shortage of int...
by sno-bro
Sat Aug 04, 2012 3:53 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build completed
Replies: 24
Views: 7847

Re: Punsun Dnepr build completed

Got my biked registered today! Of course it is raining here all day but just had to take it out for a spin. 8) Runs as expected, comfortable cruise at around 80kmh. My throttle linkage does not allow full rpm (yet), so I expect top speed to be more then that after some modifications. Vibrations are ...
by sno-bro
Fri Aug 03, 2012 7:41 am
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build completed
Replies: 24
Views: 7847

Re: Punsun Dnepr build completed

yes, it is interesting how the regulations are country specific. I know of cases where I modified bike had not passed roadworthiness here in Finland, so the resourceful builder "sold" it to a friend in Germany, it passed there, then he bought it back and it was licensed in Finland as an import with ...
by sno-bro
Wed Aug 01, 2012 5:40 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build completed
Replies: 24
Views: 7847

Re: Punsun Dnepr build completed

thanks everyone! Putting on some final touches today, like trying to get the front brake to do something. :D Beautiful IC espe! The 350 two stroke is a great engine, but I'll bet the sidecar is quite a bit for it to pull? I've customized the gearbox ratios quite a bit, so I expect about an 80kmh cru...
by sno-bro
Tue Jul 31, 2012 6:42 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build completed
Replies: 24
Views: 7847

Punsun Dnepr build completed

I've finally completed my bike. It was sure a lot more work then I figured! I still need to get the road worthiness paperwork done and the bike legal for the road, but that should not be a problem. In the process I learned to do chroming which was something I'd not done before. Actually not chroming...
by sno-bro
Thu Jul 19, 2012 7:07 pm
Forum: ENGINE RELATED TOPICS
Topic: Punsun starter upgrade - Beware!!
Replies: 8
Views: 3531

Re: Punsun starter upgrade - Beware!!

yes, you could put a couple of washers, but you'll need about 1cm worth.

I got the starter from sales@vtwinengine.com. He's been on this site also at least on the member introductions. They were very helpful and the prices reasonable.

sno-bro
by sno-bro
Thu Jul 19, 2012 6:47 pm
Forum: ENGINE RELATED TOPICS
Topic: Punsun starter upgrade - Beware!!
Replies: 8
Views: 3531

Re: Punsun starter upgrade - Beware!!

Yes it does. This is where I messed up as I thought the starter is a constant mesh type. It is not, a solenoid will move the gear forward considerably during a start. My engine does not have decompression levers, that is why I went the geared starter route. The new style starter is way stronger. I'l...
by sno-bro
Thu Jul 19, 2012 6:22 pm
Forum: ENGINE RELATED TOPICS
Topic: Punsun starter upgrade - Beware!!
Replies: 8
Views: 3531

Punsun starter upgrade - Beware!!

I'm on the finishing touches of my Punsun V2 Dnepr build, and did some test runs already. Everything was very promising! Everything works close to what I've expected. Today I run into some serious problems and the bike is now down for some time. This a word of warning for anyone thinking about upgra...
by sno-bro
Thu May 31, 2012 7:54 am
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build with questions

Sno Bro, have you calculated your road speed at 3000 rpm? A great looking build mate ! :D Hi Sibbo. Yes I have. Assuming a 215cm length of the rear wheel, my very fast 4th gear (1:1) and standard rear drive (8:37) will make 3000rpm 83kmh 3600rpm 100kmh If they start to seem too slow I can easily up...
by sno-bro
Sat May 05, 2012 12:38 pm
Forum: BIKE BUILDING Threads
Topic: sneak peak at the new diesel bike build
Replies: 63
Views: 22207

Re: sneak peak at the new diesel bike build

I took a look at your previous bike on the other forum. You're the MAN!!! 8) That is on bad ass bike!

I'll be following with great interest your new build!

sno-bro
by sno-bro
Wed May 02, 2012 7:09 am
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build

Thanks for your support guys! Right now the boring part is ongoing: sandblasting. It seems my hair has a small beach worth of sand every time I finish the evening :D. About the 6cm more wheelbase: My bike came out at 7cm increase. In addition the forward down tubes are bent forward to allow for more...
by sno-bro
Mon Apr 23, 2012 9:29 am
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build with questions

A short update on my build for possible comments: I have all the modifications made and did a final assembly of all the parts to verify they fit without interference, the battery is big enough to start the engine etc. Everything looks good and now I'll disassemble it and start sandblasting, painting...
by sno-bro
Thu Apr 12, 2012 7:17 pm
Forum: ENGINE RELATED TOPICS
Topic: Punsun compression releases
Replies: 0
Views: 323

Punsun compression releases

Did my first engine run test on a Punsun V2 in a Dnepr frame build. Everything went according to plan, even my self designed mechanical engine kill switch and idle adjustment system worked. However the starter really has to work hard, and as I'm told the original non geared started is not known for ...
by sno-bro
Mon Mar 26, 2012 5:45 am
Forum: ENGINE RELATED TOPICS
Topic: Punsun crank failure theory
Replies: 18
Views: 5659

Re: Punsun crank failure theory

Interesting write up! I have a flywheel at both ends, hope it helps. 8) Thinking (and worrying :) ) yesterday while working on my bike made me more and more suspicious about the installation and usage on the person who had the three failures: I mean even if the crank quality is crap what are the odd...
by sno-bro
Sun Mar 25, 2012 8:34 am
Forum: ENGINE RELATED TOPICS
Topic: Punsun crank failure theory
Replies: 18
Views: 5659

Re: Punsun crank failure theory

I guess I was just being hopeful... If you have a turbo Punsun with belt drive and no problems it sounds more like it has nothing to do with the mounting direction. What is interesting is that everyone seems to know that a lot of the Punsun cranks have failed, but no-one seems to actually knows how ...
by sno-bro
Sat Mar 17, 2012 8:08 am
Forum: ENGINE RELATED TOPICS
Topic: Punsun crank failure theory
Replies: 18
Views: 5659

Punsun crank failure theory

Putting hours and hours into my diesel bike build (Dnepr + Punsun V-2 + manual gearbox), reading about the Punsun crank failures keeps me worrying. After all the hard work and countless days am I going to drive around the block and push back a bike with a crank failure The thought sickens me. I just...
by sno-bro
Wed Feb 01, 2012 7:32 am
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build with questions

The injection line is NOT ordinary fuel line or brake line. The pressures even in these small diesels are in the hundreds of atmospheres, and in this is a pulsating pressure putting a lot of stress on the metal. In addition there is constant vibration. I visited the local authorized Bosch diesel ser...
by sno-bro
Mon Jan 30, 2012 8:00 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build with questions

Thanks for your comments! Henk, any pictures of your bike? Would be nice to see! I found pictures of Locomotivebreaths bike, very nice! However my idea has all the time been to keep the bike looking as much a K-750 as possible, so I'll be keeping the original tank. I'll take the injector lines tomor...
by sno-bro
Sun Jan 29, 2012 6:15 pm
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Re: Punsun Dnepr build with questions

An update on today's progress. I got the engine where I want it and next will start worrying about footpegs, battery tray, air cleaner, fuel filter etc. These pictures should also clarify a bit my engine mounting method. Here is a picture of the subframe with rubber bushings in the bike without the ...
by sno-bro
Sun Jan 29, 2012 8:47 am
Forum: BIKE BUILDING Threads
Topic: Punsun Dnepr build with questions
Replies: 33
Views: 14107

Punsun Dnepr build with questions

Greetings all! It is -24c outside here in northern Finland, so a good day to be on the internet! I've started a diesel bike build this winter and I'm making slow and steady progress, and thought I'd share some pictures for your entertainment, and also have some questions. The bike is originally a K-...
by sno-bro
Mon Dec 15, 2008 1:52 pm
Forum: Off Topic
Topic: Vorktex Power
Replies: 14
Views: 3217

COP is different from efficiency, yes. The operation of a heat pump is widely understood and utilized commercially. Anyone with basic knowledge of elementary physics can understand and calculate the theory behind it. No need for mambo jumbo or our friendly aliens on planet Zork to intervene. But "Th...
by sno-bro
Sun Dec 14, 2008 9:20 pm
Forum: Off Topic
Topic: Vorktex Power
Replies: 14
Views: 3217

Ok then! Continue we will! I actually took the trouble of reading the patent, as it is well known the US patent office hasn't been taking in patents on perpetual motion machines for quite some time. Keep in mind if the output power would be more or equal to the input power, or "efficiency edged over...
by sno-bro
Sat Dec 13, 2008 4:56 pm
Forum: Off Topic
Topic: Vorktex Power
Replies: 14
Views: 3217

As a future diesel bike builder I have been following this discussion forum for quite some time, but with this particular topic I just had to register and throw in my few cents: Whenever you read in the internet or anywhere else a claim that seems to promise something extraordinary you should keep t...