Recent Activity
All
2stroke153 Started a new thread PW 50 wont start!
10/16/2020 2:50pm I have an 05 pw 50 that i bought used for my three yr old son. It was always a little hard to start ( 10-15 kicks when not warm). It gradually got to the point where it took me 30-40 kicks, till not starting at all. I have cleaned the carb numerous times (including replacing the pilot jet which...
This forum thread has 139 replies.
2stroke153 Started a new thread Power valve oil issue??
3/30/2020 6:49pm I have a 99 cr125 that I pulled apart to clean the power valves. When I took the covers off theres oil covering everything and literally oil sitting in the pocket where the pinion shaft comes up through. I also have quite a bit of oil leaking out from where my pipe connects to the cylinder. Is this semi-normal? Is...
This forum thread has 3 replies.
2stroke153 Added a reply to Cr125 wont idle?
3/21/2020 5:37pm It is a PJ. I checked and the unit looks fine.
More »
2stroke153 Added a reply to Cr125 wont idle?
3/21/2020 5:35pm I haven't but I will look into that.
2stroke153 Started a new thread Cr125 wont idle?
3/20/2020 5:15pm I have a 1999 Cr125 that will not idle for nothing. I know 125s dont need to idle forever but it literally drops completely off as soon as you shut off the throttle. Air screw makes no difference at all, nor does the idle adjustment knob that is combined with the choke. I would just like it to hesitate for...
This forum thread has 4 replies.
2stroke153 Added a reply to Yz80 no compression
1/8/2020 6:09am Update: Rebore and new piston/rings with correct clearance of .002. Runs like a dream. Starts within 2 kicks now. Thanks for everyone's help and input.
2stroke153 Added a reply to Yz80 no compression
12/1/2019 6:29am Its actually been awhile since I have worked on it so I'm going off of memory. Was getting ready to start up the winter project! I remember that the wiseco piston was barrel shaped so it had run out diameter measurements up to .005 depending on wear you checked the diameter. I agree a good place to start is to...
2stroke153 Added a reply to Yz80 no compression
12/1/2019 4:47am No port work has been done. I thought clearance was a bit excessive myself. I didn't take anything off the ring gap and was curious to why the gap was so big??? Even if the wall clearance was down to .002 the ring gap would still be on the high limit in my opinion! This is also a wiseco piston...
2stroke153 Added a reply to Yz80 no compression
11/30/2019 6:38pm Piston to wall clearance about .003 , ring end gap .02
2stroke153 Started a new thread Yz80 no compression
11/30/2019 12:13pm I have a 1990 yz80 I purchased and trying to restore. It had low compression and wouldn't start. I bored and replaced top end and replaced reeds. Still no compression or start. Replaced crank seals. Bike starts after kicking your leg off and runs fine. It will start easy once warm. In a cold state it has less than 70lbs...
This forum thread has 8 replies.
2stroke153 Started a new thread ISO 87-92 YZ80 cylinder
12/27/2018 6:41pm Anyone out there have a 87-92 YZ80 cylinder that they be willing to part ways with?
This forum thread has 0 replies.
dkurtd Liked a reply to forum topic Extremely low compression? Help!
12/24/2018 6:24am
Take a look at this link, you need to do a leak down test. Harry Klemm talking about air leaks. http://www.klemmvintage.com/airleaks.htm
This forum topic has 6 replies.
Alec138 Liked a reply to forum topic Extremely low compression? Help!
12/24/2018 6:24am
Never worked on a smaller bike. But to check them you usually pull the flywheel, stator, and its easy to do. The clutch side is the cover, case cover half (not the actual case) and the basket, hub, etc. and its easy to see as well.
This forum topic has 6 replies.
2stroke153 Added a reply to Extremely low compression? Help!
12/23/2018 7:05pm Not totally sure how to do that . Any quick tips would be appreciated. Would that cause compression to be that low?
2stroke153 Added a reply to Extremely low compression? Help!
12/23/2018 7:00pm I work at a machine shop so I did the work myself. Wiseco states that it should be bored at the measurement that the oversize is, and that the piston is made to fit with correct gapping. I checked myself and had .003 piston to bore clearance.
2stroke153 Started a new thread Extremely low compression? Help!
12/23/2018 6:46pm Recently bought a 1990 YZ80 to semi-restore and hang on to for nostalgic reasons since I had one when I was a kid. The bike appeared to be in really good shape for the yr with much of it still in original stock form (even original front tire). Im the third owner. Guy i bought off of said been sitting...
This forum thread has 6 replies.
2stroke153 Started a new thread 1990 yz80 restore
11/22/2018 6:08pm Anyone out there got any info on were to purchase frame and engine paint for 1990 yz rebuild? I'm thinking the 88-92 is the same but not totally sure on that.
This forum thread has 0 replies.
2stroke153 Added a reply to 86-92 YZ80 differences??????????
11/18/2018 4:10pm Nice pics man. I love seeing the two strokes and the YZ definitely holds special place in my heart. My friend had an 84 when i was growing up and was the first real race bike i ever rode. I got a 1990 as my first race bike. The TM is sweet too! I really havent raced or ridden for...
2stroke153 Added a reply to 86-92 YZ80 differences??????????
11/18/2018 1:28pm Ok thanks. Yea i had seen the PC pipe deal also. Would much rather have the works pipe or a DG but we'll see. How well does the aftermarket seat cover match color to the original in person? Looks pretty good in the pics. I may hit you up in the future for some tips or hints if thats ok...
2stroke153 Added a reply to 86-92 YZ80 differences??????????
11/18/2018 6:18am Im in the process of restoring a !990 YZ80. Yours looks awesome! Were did you get the footpegs?