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mx724 Started a new thread Racetech shock Piston Bands and O-Rings

3/1/2025 2:46pm
Servicing the shock and I don't see these bands listed on the site? How many hrs are these good for under avg vet conditions? I would imagine these get replaced frequently no?
This forum thread has 1 reply.

mx724 Added a reply to LOOKING FOR VORTEX ECU 2014yz250f

6/7/2023 10:28am
How many maps are on it? Tell me a bit more about the vortex? Im looking for something that smoothes out the bottom. Ive kinda maxed out my gytr tuner.

mx724 Added a reply to 1990 Yamaha RT100 Compression test

6/21/2022 2:16pm
I also noticed its running one step colder plug. Br8es vs br7es. Gonna replace the pilot and plug to rule those out. I suspect rings as well though maybe. What are the odds you can replace the rings only tho. Im guessing it needs a new piston and bore. Might not be worth the cost tho.

mx724 Started a new thread 1990 Yamaha RT100 Compression test

6/19/2022 4:05pm
Came up with about 85-90 psi. Tested a few times. Bit will start but only for a few seconds. Cleaned carb and all the jets thoroughly. Cant find a spec on compression for this model? Getting spark and fuel. Will start off starter fluid but again won’t stay lit. I suspect new top end but would like to know what...
This forum thread has 3 replies.

mx724 Started a new thread 2004 cr125 clutch actuator

4/14/2022 4:52am
The push rod and actuator move, but wont push the pressure plate out far enough on the clutch side. No ball bearing found, nor shown on the parts diagram. Does the 2004 have just a rod? My next guess is replace the rod & actuator as they could be worn?
This forum thread has 2 replies.

mx724 Added a reply to Valve keepers / collets

3/6/2022 12:14pm
I guess I was wondering if that could do any damage to the keeper itself? I'm not sure the material of the keepers?

mx724 Added a reply to Valve keepers / collets

3/6/2022 8:44am
Of course. With new valves I would do the same. I was just swapping out the seals because they came in the kit. You ever get one lodged as I described? Where one keeper goes to far and binds between the retainer and valve stem, beyond the recessed area on the top of the valve stem?

mx724 Started a new thread Valve keepers / collets

3/6/2022 8:00am
Doing a top end/fresh jug on a 2014 yz250f and the gasket kit came with new valve stem seals. So I went ahead and replaced the old ones with the new. I was wrapping up the last intake spring, retainer, and attempting to get the keepers seated properly. One keeper went past the channel of the valve got lodged a...
This forum thread has 4 replies.

mx724 Added a reply to Help! Yz250f twitchy front end

2/23/2022 7:16am
add 1-2 clicks to your regular rear compression not your high speed if you feel like it dips under hard acceleration in the rear. This is all assuming you have the right spring rate and sag set. If that doesn't give you the results you want go back to the prior compression setting and try turning the HSC in 1/4...

mx724 Added a reply to Help! Yz250f twitchy front end

2/22/2022 7:37am
It is rider preference to some degree. But frame ergos matter. Spring rate, sag, how far back you rear wheel is, how high are your forks in the clamps etc all have significant impact on how the bike reacts at speed. If you have a twitchy front end I often read that as to much weight on the front. You...

mx724 Added a reply to Help! Yz250f twitchy front end

2/18/2022 9:57am
Talking from experience. You want your bars centered over the forks not in front of or behind. Even if you go front mount holes and rotate the clamps back, that is what I opted for.

mx724 Added a reply to Help! Yz250f twitchy front end

2/18/2022 5:29am
Some pointers that might help. If your bottoming in G outs Id try increasing the rear shock compression. HSC is more for fast hard reactions, think bucking and chop on strait a ways, that's the way I tend to think about it. I had to do quite a bit to get this same chassis to settle. I run a lowering...

mx724 Added a reply to Yz250f Vales

2/17/2022 12:43pm
Not to hy-jack this thread it is somewhat on topic. So what are you guys using to clean the valves? Ive seen Yamaha makes a combustion chamber cleaner? Lucas oil makes a degreaser? Obviously want to be cautious here with the coating on the valves. Any suggestions appreciated!

mx724 Added a reply to 14-18 YZ250f lowering

9/17/2021 8:11am
For those of you who have aftermarket valving, Racetech or other, do you find that you are often pretty close on the clicker recommendations? or is it not all that uncommon to be say, 10 more clicks out on shock rebound? I may try and stiffen up the rebound a little on the rear to see how it behaves. Compression...

mx724 Started a new thread Suspension Talk 2014 yz250f

9/16/2021 11:27am
Specifically talking rear shock here. I'm pretty happy with my setup but I noticed the last time I was out I wanted to soften my low speed compression a bit on the rear and noticed I only had about a 1/2 turn left before I was fully open. Sag running at 100 with a Devol lowering link which drops the...
This forum thread has 7 replies.