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1mph Started a new thread Mikuni TMX jet block gasket replacement and screws
1/9/2024 8:56am for those of you has done this, did you use blue loctite/thread locker or not on those two tiny screws? i spoke with loctite, they said to cure completely, must be air tight between male and female threads, otherwise, any excess that squish out (which cannot get to to wipe off) will not cure fully and may become gunky/gummy, my...
This forum thread has 16 replies.
1mph Added a reply to YZ125 - Is this normal with OEM front axle aluminum nut stripping/breaking
1/3/2024 4:29pm captmoto INeedaNewUsername FWYT yeah, crazy high for aluminum. here's a page from someone for a 2017-2019 manual, fourth to the bottom, shows 75 ft lb, i guess it's not a typo in my manual. yamaha went from steel to aluminum, no wonder why i am 50% faster. yeah, i'll go with a lower ft lb next time. What about the...
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1mph Added a reply to YZ125 - Is this normal with OEM front axle aluminum nut stripping/breaking
1/1/2024 3:17pm threads are clean, no grease or anti seize. yup, did exactly what you suggested in paragraph 2, except using a torque wrench. will try your suggestion of "just an extra snug".
1mph Started a new thread YZ125 - Is this normal with OEM front axle aluminum nut stripping/breaking
1/1/2024 10:36am Manual state 77 ft lb, this is around the 3rd or 4th time putting this nut on, this last time (was not cross threaded), didn't even get to 77 ft lb before the threads broke off like a spring. is this somewhat common with these aluminum nuts?
This forum thread has 15 replies.
1mph Added a reply to 1987 KX250 help with jetting and float height (Keihin PWK)
1/13/2024 12:27pm Your first float image looks like you have the carb at about 45 degree, with the float bar barely touching the needle plunger, this is correct. Second image sitting completely upside down, the weight of the float will push down on the plunger and that is not gonna give you the correct reading. This is a Mikuni, the height is...
1mph Added a reply to What happens when you dump your 2T bike, does the gas get into the cylinder?
12/2/2023 6:09am ty to both for explaining, also the pics, ahh, i see now.
1mph Added a reply to What happens when you dump your 2T bike, does the gas get into the cylinder?
12/1/2023 11:02am I've always knew about top end, thought bottom end refers to the transmission. What is exactly the bottom end? How is it separate from the transmission? How do some people end up having gas in the transmission/gear?
1mph Started a new thread What happens when you dump your 2T bike, does the gas get into the cylinder?
12/1/2023 6:21am Are the green circles just vents, the red are drains? If one dumps their 2T bike, the float may not work as intended, does the fuel come out of the drains (red) and the overflow at the bottom? Can it also get into the cylinder? Everybody dumps their bike here and there, just wondering if gas will get into the...
This forum thread has 4 replies.
1mph Added a reply to 2021 YZ125 float height, can the factory be that much off?
11/27/2023 10:28am jd jetting says it comes at 6mm from factory, should be at 8mm. it was hard finding what the float height should be, since from whatever year, service manual stopped printing the float height and instead started using fuel level height. hope this helps those who are looking for this info.
1mph Added a reply to Mikuni TMX38 Venturi Block Seal
11/23/2023 7:45pm thanks guys
1mph Started a new thread Mikuni TMX38 Venturi Block Seal
11/23/2023 4:23pm I need to check if the venturi block (1) seal needs replacing, but Yamaha's service manual stated below to NOT disassemble because it will cause a drop in carb performance, if so, how is one supposed to check that seal and how is it gonna affect performance by taking it off and putting it back on? Anyway, first image is...
This forum thread has 3 replies.
1mph Added a reply to 2023 crf450 air filters
11/23/2023 2:46pm I like to try one of these, no glued seams, except maybe the rubber seat.
1mph Started a new thread 2021 YZ125 float height, can the factory be that much off?
11/23/2023 6:00am First two images shows the original stock float height, direct from the factory. Third image is how much I had to bend the tab to set it to 8mm. (It's at about 45 degree, float just lightly touching the back of the needle spring plunger. One image may look like it's vertical, it's not, that's just the camera angle) Seller...
This forum thread has 7 replies.
1mph Added a reply to New bike winter storage?
11/22/2023 5:46am Aside from whatever else, if not planning on starting it for a while, I put a tablespoon of motor oil in the cylinder, crank it over several times to coat it, as per recommendation in the Yamaha's service manual.
1mph Added a reply to Hard to Remove 2 Stroke Fuel Line
11/22/2023 5:37am There are specialty pliers for that, like below, grab, twist and pull
1mph Added a reply to 2021 YZ125 float height, can the factory be that much off?
11/20/2023 7:56pm Not yet, soon. I was like, damn, that's quite a bit of bending to get to 8mm. If it's supposed to be at 8mm and the factory had it at 6mm, smh. I heard from some that the float typically come set high/rich from the factory 🤷
1mph Added a reply to 2021 YZ125 float height, can the factory be that much off?
11/20/2023 7:25pm It definitely was at about 45 degree, float barely touching the needle spring plunger, I was holding it while my son helped take the pic, so the angle of the image may be deceptive. It's just that almost everything I've read or watched, stating that typically, the tab is usually fairly level, kinda unbelievable that the factory is that much...