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Sm450R Started a new thread 927 VS K2 what’s better for a 125?
6/29/2025 7:26pm I’m tired of listening to people tell me to run 927 or k2, so before I chose which I’m gonna run I wanna hear other people’s opinions on what oil will be best in a yz125 that gets a mix of moto and woods. When I run woods and moto I do ride the bike pretty hard in the high...
This forum thread has 10 replies.
dogger315 Liked a reply to forum topic VP110 or C12 for 125 and 250 two-strokes?
5/11/2025 5:50pm
Both the 110 and C12 are leaded which is beneficial for a two stroke. The 110 is less expensive than C12 and will work fine cut 50/50 with premium pump gas yielding an octane rating over 100. As I'm sure you already know, It's a good idea to secure a source of ethanol free pump gas for the mix. The MRX02 and SX2 are both oxygenated and expensive. VP claims the MRX02 is legal for AMA Pro/Am, but I'm pretty sure oxygenated fuel is not legal for AMA pro racing. The Renegade 110+ is also leaded and another good choice...
This forum topic has 38 replies.
Sm450R Added a reply to Tank threaded insert turning a little
4/29/2025 8:06pm Sorry kinda got caught up with other projects. i found that this worked very very well, Thanks for the great suggestion.
Sm450R Started a new thread Tank threaded insert turning a little
3/9/2025 10:16am I have a 1997 yz125 with a Clarke tank and the threaded insert is turning about an 1/8th of a turn in the tank, wanna solve this before it gets worse….thanks!
This forum thread has 3 replies.
Sm450R Added a reply to Rebuilding yz125, got yamabond on rod and in crankcase
1/6/2025 12:18pm Just took off the cylinder, not to much left of the rod, got almost all of it scraped off, just reinstalled the cylinder.
Sm450R Added a reply to Rebuilding yz125, got yamabond on rod and in crankcase
1/6/2025 11:53am Won’t it just get flung off at wide open?
Sm450R Added a reply to Rebuilding yz125, got yamabond on rod and in crankcase
1/6/2025 11:04am Well there was quite a lot, I didn’t notice till this morning, I picked out most the excess on the rod through the intake…I have no idea how much is on the other side of the rod
Sm450R Started a new thread Rebuilding yz125, got yamabond on rod and in crankcase
1/6/2025 9:49am Curious if this will harm it at all, had excess yamabond squeeze into the crank area.
This forum thread has 7 replies.
MxAddic Liked a reply to forum topic Is mixing 20w50 and 10w40 half and half ok in Yz125
12/31/2024 2:26pm
Yes, you are unlikely to run into a situation where you would only replace one. It's going to run like new now.
This forum topic has 16 replies.
Sm450R Added a reply to Is mixing 20w50 and 10w40 half and half ok in Yz125
12/31/2024 1:33pm Welp, checked the flywheel side bearing and it has a small amount of play so I’m just gonna replace both
Sm450R Added a reply to Is mixing 20w50 and 10w40 half and half ok in Yz125
12/30/2024 6:54pm No I’ve owned a few, 2 85’s and this is my first 125. Don’t understand what your saying here… blown crank seal was making it suck in transmission oil.
Sm450R Added a reply to Is mixing 20w50 and 10w40 half and half ok in Yz125
12/30/2024 6:52pm 😂 I only did a top end…haven’t touched the bottom end…
Sm450R Added a reply to Is mixing 20w50 and 10w40 half and half ok in Yz125
12/30/2024 2:17pm Well I bought the bike a month ago and when I torn it down the seal was all dried up, it’s super weird
Sm450R Added a reply to Is mixing 20w50 and 10w40 half and half ok in Yz125
12/30/2024 2:03pm Bearings are fine
Sm450R Added a reply to Is mixing 20w50 and 10w40 half and half ok in Yz125
12/28/2024 9:52pm Well thanks for the answer, trip just got canceled cause my crank seal is BLOWN…missing 250ml of oil, was just done 5 hours ago.
Sm450R Started a new thread Is mixing 20w50 and 10w40 half and half ok in Yz125
12/28/2024 5:54pm Need to get oil change done before trip, problem is I’m not sure if I can mix 20w50 and 10w40…want to make sure won’t make transmission get to hot etc…Thanks!
This forum thread has 16 replies.