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Old 04-25-2022, 10:39 PM   #1
Okierider   Okierider is offline
 
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I just finished playing with mine. It’s better now at about 20mm free sag.
Middle on my adjustments is a bit rough going over washboard sections of road, but it feels like it’s soft enough that I’m not getting as good of control of the bike as I could. Especially going through gravel the bike really just kinda does its own thing. I’ve ridden it at full soft (as it came from the seller) and now halfway, I guess I’ll try full hard and see how that goes.

Driving this thing around where I am (mostly trails/gravel roads) it really feels like it could use some taller gears. I’m still well within the break in period though-somewhere between 50 and 100 miles.
I contacted the seller via Amazon about my Speedo and they replied immediately with a few troubleshooting questions. They seem eager to get it fixed but time will tell.

One thing that keeps surprising me though is that this bike doesn’t feel cheap, at all. The more I ride it the more solid it seems. Time will tell but its still impressing me.


 
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Old 04-26-2022, 07:59 AM   #2
Thumper   Thumper is online now
 
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What size is the chain? Is it a 428?
And does it feel like you are getting 20 hp out of it?
Claim is 19hp and a 520 chain on the powersportsmax website.

If the sprockets really are 13T front, 49T rear, the final drive ratio is geared way down !
That's 0.2653

That's even lower than OEM Hawk gearing!

My Storm came with 17/46 (0.3696)
Expect 15/46 (0.3261)
Hawk 15/50 (0.300)


 
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Old 04-26-2022, 10:13 PM   #3
Nutcracker   Nutcracker is offline
 
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Learned that 2016+ KTM frame guards fit these bikes. Looks cool...

My back tire is wearing fast 221 miles. I keep hitting the pavement for a quick run to Lowe's, Aldi's , & beer runs... Not a highway tire.. Still breaking the engine in but I'm pushing it more and more.. Like all 250s I wish I had one more gear. Looking at the 6 speed motor final drive ratio is no more than the 5 speed... The more I ride the bike the more I like it..

Heres a recent video of a full explanation of all FMM motors. Sucks I can't understand Chinese or Russian but Google translate helps... I'm potentially interested in a 177 bore kit.





 
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Old 04-26-2022, 10:27 PM   #4
Okierider   Okierider is offline
 
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Quote:
Originally Posted by Nutcracker View Post
Learned that 2016+ KTM frame guards fit these bikes. Looks cool...

My back tire is wearing fast 221 miles. I keep hitting the pavement for a quick run to Lowe's, Aldi's , & beer runs... Not a highway tire.. Still breaking the engine in but I'm pushing it more and more.. Like all 250s I wish I had one more gear. Looking at the 6 speed motor final drive ratio is no more than the 5 speed... The more I ride the bike the more I like it..

Heres a recent video of a full explanation of all FMM motors. Sucks I can't understand Chinese or Russian but Google translate helps... I'm potentially interested in a 177 bore kit.


Spare motor from eBay
Add 177 bore kit
Profit


 
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Old 04-27-2022, 10:05 PM   #5
Okierider   Okierider is offline
 
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Spent yesterday evening playing with the suspension a bit, just driving around the property over ruts and holes trying to find what felt best. Seems I favor a relatively softer compression to a harder rebound.

Took it out for a 10 mile ride after the kids were in bed and man, totally worth it. It flys over washboards and ruts in the road, way more stable and controllable. I didn’t think the adjustments would add up to much but man, was I wrong! Totally different feel. Now the bike really encourages you to get up out of the seat, onto the balls of your feet and ride.

Really wish I wasn’t still breaking it in lol.
I’m really curious how this would perform with a better carb and a cleaner exhaust.


 
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Old 04-28-2022, 09:41 PM   #6
scbindisbihhh   scbindisbihhh is offline
 
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I know I have posted anything in a while about mine, it's honestly just been sitting for a little minute, I just got the nibbi carb and jets on order, and after some research and info, I think I'm going to run a 130mm main, and 50 pilot, needle set to middle, and 2 turns out. Numbers may seem high, but I'm 15ft above sea level and it won't even start up and idle unless maximally warm without dying after immediately being set off choke. This is just my estimated starting point on adjustment, do you guys have any recommendation on what jetting I should do if you disagree with what I have planned?
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Old 04-28-2022, 10:28 PM   #7
Nutcracker   Nutcracker is offline
 
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I'm very curious about your carburetor install. Ive also read 125 main and 45 pilot also 2 turns out. I bet this will make a big difference on this motor. Hope you post your results. Not much room to pull out the carb without removing the exhaust. I read we're some Zongshen engines have a funky exhaust gasket from factory. Should be a common size if you did have to replace.

Anyone curious about trying Joe Henners 4° offset flywheel key? Im in the same boat with engine break-in being 300 to 500 miles im ready to really use this thing... Patience....


 
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Old 04-28-2022, 10:33 PM   #8
Okierider   Okierider is offline
 
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Quote:
Originally Posted by Nutcracker View Post
I'm very curious about your carburetor install. Ive also read 125 main and 45 pilot also 2 turns out. I bet this will make a big difference on this motor. Hope you post your results. Not much room to pull out the carb without removing the exhaust. I read we're some Zongshen engines have a funky exhaust gasket from factory. Should be a common size if you did have to replace.

Anyone curious about trying Joe Henners 4° offset flywheel key? Im in the same boat with engine break-in being 300 to 500 miles im ready to really use this thing... Patience....
I’ve seen this mentioned a few times, what’s the 4* offset key?
After breakin I’m honestly toying with the idea of throwing a lectron carb on it and making a custom exhaust. Have welder, will travel lol.

Edit: so what’s up with this Henner motor sports?
I can only find a Facebook page, and since I don’t have Facebook that does me zero good. Does he have a legitimate business page? Can’t buy parts without one lol.


 
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Old 04-29-2022, 12:04 AM   #9
Nutcracker   Nutcracker is offline
 
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There's 2 things I've learned from Russian videos. #1 is the thickness of the head gasket that was added to reduce compression. By reducing compression this reduced NOX & CO2 gas's to a level for EPA approval in US market. Removing a layer of the head gasket increases the compression to a little above 10:1. #2 is Flywheel keys or advancing the timing by 4° to 8°. This probably also had to do with EPA Emission standards. For these reasons this could be why we see the HP range on this motor at 19 to 26HP. Very good reviews on the 4° keys. Supposedly 8° is to much advance and your overheating & melting stuff.


 
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Old 04-29-2022, 07:38 AM   #10
Okierider   Okierider is offline
 
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Quote:
Originally Posted by Nutcracker View Post
There's 2 things I've learned from Russian videos. #1 is the thickness of the head gasket that was added to reduce compression. By reducing compression this reduced NOX & CO2 gas's to a level for EPA approval in US market. Removing a layer of the head gasket increases the compression to a little above 10:1. #2 is Flywheel keys or advancing the timing by 4° to 8°. This probably also had to do with EPA Emission standards. For these reasons this could be why we see the HP range on this motor at 19 to 26HP. Very good reviews on the 4° keys. Supposedly 8° is to much advance and your overheating & melting stuff.
I think the manual quotes 14 horse for the X7.
Going from whatever it is we have (14, 19, somewhere in between) to almost 30 would necessitate changing sprockets in a hurry.


 
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Old 04-30-2022, 06:42 PM   #11
Thumper   Thumper is online now
 
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uh-ooooo!

Did it. I am in trouble now

Can't wait to see it. Black first choice, Orange second choice.

ExMxer... what's not to love about this bike! Go for it



Last edited by Thumper; 04-30-2022 at 10:00 PM.
 
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Old 05-01-2022, 10:41 PM   #12
Okierider   Okierider is offline
 
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Originally Posted by Thumper View Post
Did it. I am in trouble now

Can't wait to see it. Black first choice, Orange second choice.

ExMxer... what's not to love about this bike! Go for it

You’ll love it.
I took mine on a 25 mile gravel road/cow path trip today.
Holy cow, this thing is so much damned fun lol.
First gear is starting to bug me though. There just isn’t enough of it.
So how does one go about figuring out gear ratios?



Last edited by Okierider; 05-01-2022 at 11:41 PM.
 
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Old 05-02-2022, 06:47 AM   #13
david3921   david3921 is offline
 
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Quote:
Originally Posted by Okierider View Post

You’ll love it.
I took mine on a 25 mile gravel road/cow path trip today.
Holy cow, this thing is so much damned fun lol.
First gear is starting to bug me though. There just isn’t enough of it.
So how does one go about figuring out gear ratios?
What most use is this;
Want more speed? Go up (tooth count) in front or down in back
Want more grunt (torque)? Go down in front or up in back.
A change in one tooth in front is close to (ratio-wise) three in back.
Most change the front as it's easier, cheaper, and makes a pretty significant change. Sometimes there isn't room in the front (when going up), however, and the rear needs to be changed. Most times, a one tooth change doesn't require a change in the length of the chain but it isn't always the case.

Now after all that, if you want first to be "longer", go up one tooth in the front. It will make all of the gears longer, however. If it's too much, you can fine tune the back. It all comes down to your style of riding.
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Last edited by david3921; 05-02-2022 at 10:50 PM.
 
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Old 05-02-2022, 08:57 PM   #14
Nutcracker   Nutcracker is offline
 
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Got it registered today. I reluctantly say no issues Registering and Tagging in Tennessee. Tennessee has not updated there manufacturer names on there system. So the clerk was unable not put Zummva or Wuyi and come back with a match.

The Vin did not raise concerns & the MSO showing 9HP helped. What I did was paper clip a Brochure of 2022 Yamaha Zuma 125. I simply pointed to the MSO 9 HP statement showed the brochure then flipped the MSO over showing the notorized back. Proceeded with normal conversation.. Walked out with registration and a tag.


 
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Old 05-02-2022, 11:38 PM   #15
scbindisbihhh   scbindisbihhh is offline
 
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Originally Posted by Nutcracker View Post
Got it registered today. I reluctantly say no issues Registering and Tagging in Tennessee. Tennessee has not updated there manufacturer names on there system. So the clerk was unable not put Zummva or Wuyi and come back with a match.

The Vin did not raise concerns & the MSO showing 9HP helped. What I did was paper clip a Brochure of 2022 Yamaha Zuma 125. I simply pointed to the MSO 9 HP statement showed the brochure then flipped the MSO over showing the notorized back. Proceeded with normal conversation.. Walked out with registration and a tag.
Dude nice! Did you get this done at your actual DMV or a Notary/Tag place?
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