87 YSR with a lifan 200

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gixxer03	87 YSR with a lifan 200	Lead	[-]
Posts: 6 (12/23/07 11:46:21) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Tags : None I have started my project of putting a Lifan 200 into my ysr I recently bought, which I blew up the stock motor in September. The lifan motor is all stock so far, the only thing I have done to it is remove the electric starter (I dont want to have to run a battery) and have a plate pressed and welded into the huge hole it left. I have found that the motor, carb, airfilter will all fit under the tank without cutting, and have most of the mounts done (I need to take more recent photos) I wonder though, does anybody know if I should box in the rear section of the frame? This motor is claimed to put out 16hp, but I doubt it will be that high. Also, if I should box the frame, what thickness steel should I use, and does anyone have any close-ups of a frame that was done? Any other advice/ideas would be greatly appreciated. By the way, I just finished hacking up and welding a BBR exhaust for the bike, and I have a trailtech vaypor computer on the way (speedo, tach, 2 shift lights, engine temp...) img508.imageshack.us/img5...213sq6.jpg img146.imageshack.us/img1...221tj0.jpg img508.imageshack.us/img5...220am4.jpg The bike when I got it (is that a toomey pipe?) img412.imageshack.us/img4...200qw3.jpg
ysr89	.	#1	[-]
Posts: 54 (12/23/07 13:01:25) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I don't think you really need to box the frame. I've been running my DT175/YSR without boxing and haven't had any problems. You can if you want, to be extra cautious, but you don''t really need to. Keep us posted on the swap, I've wanted to do this same one for some time now!
gixxer03	Re: .	#2	[-]
Posts: 6 (12/24/07 21:50:34) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	So ysr89, do you ride your bike pretty hard- hard launches, maybe a few wheelies? I dont plan on doing a whole lot of it on my bike but its bound to happen every now and then. a couple pics of the exhaust img266.imageshack.us/img2...004zt1.jpg img246.imageshack.us/img2...005sj1.jpg short video www.youtube.com/watch?v=PVJVg_dGlKc let me know if the link doesnt work...
Air dreams	Re: 87 YSR with a lifan 200	#3	[-]
Posts: 39 (12/29/07 23:45:55) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Ill send you pics of the first LYSR I saw.. I have prity detailed pics of it. "Got to love the VW's!" Later, LLL
robroy67	Re: 87 YSR with a lifan 200	#4	[-]
Posts: 20 (12/31/07 19:57:10) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	How'd the LYSR run air dreams? If you're not posting pics on here, please send to me also. I'm very interested in this. BTW 89, nice pics.
Air dreams	Re: 87 YSR with a lifan 200	#5	[-]
Posts: 39 (12/31/07 23:34:41) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I saw it about 8 or 9 months after I really got to thinking about making a 200cc 4 stroke. This was over a year ago. He was selling it on e-bay. He claimed it ran great, but had hardly ridden it. Said it wasn't even all the way broken in so he didnt know the top speed. He payed some shop to build it. LYSR 200 "Got to love the VW's!" Later, LLL
Air dreams	Re: 87 YSR with a lifan 200	#6	[-]
Posts: 39 (12/31/07 23:42:37) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Saw this one this summer on e-bay also. It has the Lifan 150 This guy clamed the bike was verry fast & under normal riding it could easly keep up with a big bike. PS: soory if I misspell. Its hard to tell when on pain meds.. "Got to love the VW's!" Later, LLL
robroy67	Re: 87 YSR with a lifan 200	#7	[-]
Posts: 20 (01/07/08 09:59:02) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	A 150cc? Does that mean that it's one of the horizontal pit bike style motors? Looks good.
Air dreams	Re: 87 YSR with a lifan 200	#8	[-]
Posts: 39 (01/07/08 13:50:57) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	No its a vertical motor.... I do have the info for putting a horizontal motor in a YSR. "Got to love the VW's!" Later, LLL
robroy67	Re: 87 YSR with a lifan 200	#9	[-]
Posts: 20 (01/10/08 19:59:26) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Really...let's have it. They make some really nice horizontal motors now. Let's see it if you've got pics of it too.
Air dreams	Re: 87 YSR with a lifan 200	#10	[-]
Posts: 39 (01/12/08 00:17:24) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	OK. Check this out................ www.minigpx.com/news/arti...icle=24864 "Got to love the VW's!" Later, LLL
robroy67	Re: 87 YSR with a lifan 200	#11	[-]
Posts: 20 (01/13/08 09:39:08) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	OMG, that was sweet. Nice work on gathering the info airdreams. I wonder how that set up runs against the vertical 100's? Gixxer03, you still out there? Did you make anymore progress with your project?
gixxer03	Re: 87 YSR with a lifan 200	#12	[-]
Posts: 6 (01/13/08 12:54:12) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Yeah, that 150 looks really nice, I hope mine looks that good when I am done. The 200 in the pictures is a different motor than mine, I believe that is an overhead valve motor and mine is an overhead cam. I dont know how different those are performance wise? I had about a week and a half off of work around christmas, thats why I got so much done on my bike. Now I slowed down quite a bit. I have all my lights wired up now-the turn signals took me about 2 days to figure out. Turns out that with the electronic flasher I was using I have to use a capacitor (since I dont have a battery) to smooth out the flow of electricity, otherwise the signals wont flash (flasher would reset every time the votage dropped)... I will probably start mounting all of my electrical components permanently now, and then its time to tear the bike down, weld everything nice and paint it. Then I just have to wait till May for some decent weather...
Air dreams	Re: 87 YSR with a lifan 200	#13	[-]
Posts: 39 (01/13/08 22:52:42) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	The pipe that was on your bike when you got it isn't a Toomey. I could probably tell who made it if you have a better pic. Anybody have a idea of which stile is better, the overhead valve or cam? "Got to love the VW's!" Later, LLL
ysr89	Re: 87 YSR with a lifan 200	#14	[-]
Posts: 54 (01/14/08 13:17:31) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	roybroy, there is a video of a horizontal engine ysr on youtube. go there and look up ysr. it'll be there somewhere. good luck!
robroy67	Re: 87 YSR with a lifan 200	#15	[-]
Posts: 20 (01/15/08 18:52:22) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	YSR89, I found one that had a horizontal motor on youtube. It's under ysr 110cc four stroke. No big deal, he just starts it and revs it a couple of times. He doesn't get to close to the set up and all but you can just tell that it's hori. 110cc. I want to see some jaw dropping, knee dragging footage with a horizontal. I haven't seen them yet, but the guys around here have race series for small stuff (xr100, kx65) and I think there big stuff goes up to 150 or so. Are we the only ones on this site? Does anyone out there know how horizontals run against vertical 100's/150's?
Air dreams	Re: 87 YSR with a lifan 200	#16	[-]
Posts: 39 (01/16/08 11:26:24) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	The guy who made the back bone said that with the motor he used it wasnt really competitave with the NSR. The new GPX motor should be pretty good, from what Ive heard. Its supose to be one of the best quality & HP knock off motors out there. & yes, unfortianatly this site is almost dead. Very few people come here any longer. "Got to love the VW's!" Later, LLL
robroy67	Re: 87 YSR with a lifan 200	#17	[-]
Posts: 20 (01/16/08 18:09:42) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Yeah, a buddy of mine has one of those gpx motors (in a pit bike) and it rips. Bad part, atleast for road riding/racing, is that it's only a 4 speed.
Air dreams	Re: 87 YSR with a lifan 200	#18	[-]
Posts: 39 (01/17/08 15:44:40) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Is it the GPX150 like the Pitster Pro? This is the one I keep hearing about. I hear its faster than a YSR50, but not quite as fast as a YSR80 off the line, but will start to catch up after a bit. (seems logical to me since you can ride it WFO all day long.) "Got to love the VW's!" Later, LLL
gixxer03	Re: 87 YSR with a lifan 200	#19	[-]
Posts: 6 (01/18/08 17:05:21) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Thats what I love about single cylinder 4-strokes! Every one I have owned I rev higher than I should and hold it there longer than I should and they never blow up (yet)
robroy67	Re: 87 YSR with a lifan 200	#20	[-]
Posts: 20 (01/18/08 19:36:40) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	He had the gpx motor and he did a big bore and head. That thing ripped! I never got to run the gpx but another bud of mine had a crf 150 stroked and bored to I want to say 175cc and he would keep with me pretty well on this .8 mile 13 turn course we used to run. But as soon as the ported and polished blaster 200 got a wif of fresh air down the back stretch, it was good bye Sally. I'll drag the brakes a little between turn 1 and 2 so he could catch up.

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