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Post by crazypj22 on Jan 20, 2007 22:54:36 GMT -5
Finally, ITS ALIVE ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D BOOM, BOOM,BOOM Its LOUD, I haven't done anything to the exhaust since my post last year (new exhaust post, just a bunch of pipes, November I think?) Definitely sounds stronger than a stock 650 without pipes. I'm going to get it off bench and outside tomorrow for a decent warm up. Long rod sounds different, XV pistons make bigger bangs  Left carb is leaking but I think its just something simple (ME  ) Still doesn't have tank(painting it) Seat, (haven't decided style or fitting yet, may be making a new rear subframe  ) No footrests or rear brake and wires hanging everywhere. Lights are still on the shelf. Going to need a new generator brush holder so I can charge battery (need a battery box as well) BUT, it runs so everything else is easy. Place is stinking of gas at present, wife is going a bit weird about it All for now, PJ |
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otto
Full Member
Elvira, 78 oh so Special
Posts: 171
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Post by otto on Jan 20, 2007 23:27:54 GMT -5
Gratz PJ!!!!
I can only guess how excited you must be, as I'm quite excited for you myself!
You have a vid camera? A clip of her running would be sweet. Can't wait to hear about how she does on the road.
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Post by crazypj22 on Jan 21, 2007 21:46:44 GMT -5
Found the leak, drain screw loose  Made a bracket to hold oil filter in position I uploaded a 20 sec video of it running at photobucket s91.photobucket.com/albums/k315/1crazypj/XS650/?action=view¤t=XS800.flvHope this link works. You can even hear me and stepdaughter (wife was 'busy') Adobe had hijacked my computer but it seems to be ok? ( I usually use media player but this got transformed to Quicktime MOV file??) The tinktink/rattle is the loose exhaust pipes, in fact I forgot to tighten any engine bolts. I loosened everything off to get lower rear bolt in (it doesnt seem vibrate as much as the 650 8-)maybe Still tries to move backwards along bench so its still 'normal' ;D ;D ;D I also found out I have 2 working black boxes, even though the connector has almost rotted off one it still works so the internals are good. PJ |
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Post by eric123 on Jan 21, 2007 21:57:30 GMT -5
sounds awesome
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otto
Full Member
Elvira, 78 oh so Special
Posts: 171
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Post by otto on Jan 24, 2007 1:09:43 GMT -5
OOOOHHHHH MAAAAN That is sweet PJ! I had finally settled in to not going this route for a while, but oh man the itch is coming on again strong. Can't wait for the feedback on how she rides. What did you wind up doing for a cam? You reweld the stocker or get a performance grind?
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Post by crazypj22 on Jan 24, 2007 11:05:30 GMT -5
Hi Otto, It was taking too long to figure everything out (cam, ignition, wiring, carbs, exhaust, piston mods, etc) That motor is a 360. (sorry to dissapoint ) I pulled the 277crank out and built another one as I had a pair of CR500 rods. It is my 'spare' motor for experiment, when I get exhaust built and chain and sprockets sorted I'll try and get a dyno run on it with the 32mm carbs and later with the 36mm when I get them cleaned up and jetted (its only done about 1 min running so far, filling carbs with a syringe :  I'm seriously thinking of pulling he MAC exhaust and BS38 carbs off the one I'm riding just to dyno it, or maybe switch the motors and wiring harness this weekend into the road 650, then I could break i in and be able to get it to work for dyno run ?? Now I know for sure that everything works I have another set of CR rods for the 650 I'm riding which is also going to be a re-phase and will be third long rod crank I've done. I may have to sell the motor in video to finance some of the other stuff I want to do (but not for a while, got to test it first) Hopefully I can afford to keep it. I have cut and welded the cam for 277 but would like a regrind with a better profile if and when finances permit. The motor for that chassis in video is now going to be an 860 re-phase. (keep all the numbers original ;D) At least we all know that the CR rods will work with minor work to XV pistons. Its already known that the 277 or 90 degree rephases work so I now need to pull it all together Motor change this weekend, just made an 'executive' decision ;D ;D ;D Heres the excuse, I been sick, starting to feel better than I have for over two years, getting back to where I should be.  PJ |
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otto
Full Member
Elvira, 78 oh so Special
Posts: 171
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Post by otto on Jan 24, 2007 23:38:52 GMT -5
Well, I'm a doof, I shoulda been able to hear the difference, sure did sound good though. Sorry to hear you've been ill, I don't remember reading that before. Hope it wasn't too serious or awful to get through.
I kinda know what it feels like. For some reason I don't have half the energy or drive I did just two years ago. I'm seeing alot of projects pile up and its really buggin me. Thinking about getting tested for diabetes, it does run in the family. Not sure I want to face that possible truth though.
You've definately inspired me to keep plugging at the 277/big bore/long rod concept. I've decided for now to not even get into the bottom end. All that was really wrong down there was some oil leaks, oh well. Just get her running for now and save my pennies for next winter. Maybe if I'm lucky I'll pick up a spare motor soon to dink with during the summer.
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Post by crazypj22 on Jan 25, 2007 12:37:33 GMT -5
Slight change of plan, got talked into this yesterday and it seems a good idea I can get the 'stock' 650 (KN's, MAC exhaust) dynoed next week for a base line reading (and see how far out carburation is, the gas sniffer is working ;D) I've been told I'm not allowed to go over 7,000 on dyno ('they' are afraid an old motor will grenade and mess everything up : When I had it dynoed about 4~5 yrs ago it made 40.8 hp at rear wheel so it will be interesting to see how it is after 17,000 hard miles. Then swap motor and run it in for a couple of hundred miles using same carbs and exhaust as 650. ( its going to need a few miles as I bored it to last, not to race, 0.0015" piston/cyl clearance) Get that dynoed so I can see how much (if any  ) 'improvement' there is with the same carbs and exhaust I've already noticed an increase in compression but not tried compression test yet, the rings are bedding in ;D Re-starting on the re-phase 860 as well, keeping busy ;D ;D ;D PJ |
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hsi88
New Member
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Post by hsi88 on Jan 26, 2007 4:38:24 GMT -5
Otto, I too am afraid of medical complications. When I turned 50, my energy started to wain and I have a garage full of projects, not to mention work projects that would actually make me money.
PJ, the bike sounded great!! I am glad to hear the combination is fairly smooth with the 360 crank. I like the idea of getting power on every stroke and although I have one crank already modified for 277, I would like to leave the others at 360. I have enough parts for 3 engines at this point and will try to get started. I'd like to be riding one of these in the spring.
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Post by crazypj22 on Jan 26, 2007 17:41:46 GMT -5
Whoo Hoo, I rode bike to work ( the 650 motor) and managed to get a couple of runs on Dyno. Even after my beating it for 17,000 miles ( now has about 27,000 on clock) its still making 41.96 HP@ 7,000 rpm. I really wasnt expecting much more than 35 bhp ;D ;D It means I can swap engines over the weekend and start breaking in 800 motor. I only got 4 runs, the last one the chain guard mounting broke so they wouldnt do any more. Its running a bit lean on pilot (40)and very rich on main (147.5) so it may have made a few more HP with correct carburation I'll scan and post either tonight or tomorrow. PJ Edited to change pilot jet size from 42.5 to 40 which is fittted.Way too small anyway ;D |
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Post by jeepurze on Jan 26, 2007 21:56:35 GMT -5
pj checked your photo bucket , that thing sounds great, seen the cooler to , sweet. ive got to re read this thread guess I duhhhed out and missed it.
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Post by eric123 on Jan 26, 2007 22:22:18 GMT -5
Hey crazypj22, you said you cut and rewelded your cam for the 277 motor...Did you do this yourself? If so, I am interested in hearing more if possible...
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Post by crazypj22 on Jan 27, 2007 2:59:18 GMT -5
Posted Dyno run in Carburation section, with a bit of an explanation of what your looking at. (BS38, K&N, MAC) I cut and welded cam myself, used nickel/chrome rods and stick welded it as it was all I could do at the time (still is, although I now have gas welding equipment I wouldn't use it for cam. ;D) The rods were originally designed for hard facing excavator bucket teeth so I thought they would be plenty strong enough for what I was doing. I had many, many attempts to get it welded and straight, eventually got it to within 0.0015" runout, but it still wasn't easy, difficult not to get heat distortion which makes cam 'bend' I've had quite a bit more practice since, I first did cam so I think I can do better next time All for now, PJ |
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Post by crazypj22 on Jan 27, 2007 14:10:04 GMT -5
It means I can swap engines over the weekend and start breaking in 800 motor. Yet another change to plans As I posted in Fuel/carbs section, I'm going to change some things in carbs and get another dyno run if possible so I wont be swapping out the 650 for 800 motor this weekend. Does mean I have to mow the weeds ( the grass is there somewhere ;D) and I can do some more work on tank and swing arm and paint some brackets. PJ |
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BigT
New Member
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Post by BigT on Feb 1, 2007 22:55:33 GMT -5
This is one great thread. I really like the idea of the long rod concept, and that bike on the video clip sounded healthy. As I see it, besides the advantages the longer rods gives you, you also get forged rods and a roller bearing on the small end.
I have a question for you though. How do you know what pistons have the correct deck height without having one in your hand to measure? Is there a link to where you can look up the specs and dimensions on pistons? I was hunting around and found a supply of pistons that fit a honda xr250. The ones I found are over size at 77mm, and that puts them right around 700cc's. the compression ratio was a bit high for what I want, but I have access to a full blown machine shop with tools to do what ever I can dream up. So what do you think? Do I need to go down to the Honda shop and measure one?
BigT
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) 
) No footrests or rear brake and wires hanging everywhere. Lights are still on the shelf. Going to need a new generator brush holder so I can charge battery (need a battery box as well) BUT, it runs so everything else is easy.
) 'improvement' there is with the same carbs and exhaust