Coolster 3125-XR8 carb issue?? New.
#62
yeah, it sucks.. Tbolt cant tell me that any of their manifolds will work.. they are designed for pitbikes that have kickstart, not e start, so it is a gamble if I buy one
with the restocking fee and shipping I would be out at least half the money if I send the carb back, so its probably not worth it, and I cant find flanges to make my own, so I will have to make the flanges too and that is a p.i.a.
now I wish I had gotten the bigger carb after all - I could just toss it on my dirtbike and for the quad I would just drill the pilot and replace the main like you guys are doing
with the restocking fee and shipping I would be out at least half the money if I send the carb back, so its probably not worth it, and I cant find flanges to make my own, so I will have to make the flanges too and that is a p.i.a.
now I wish I had gotten the bigger carb after all - I could just toss it on my dirtbike and for the quad I would just drill the pilot and replace the main like you guys are doing
#63
There is one option i have seen. On ebay, go figure, there is an adapter that looks to asentric by nature. I cant fully tell, but it should be set up to offset the carb for clearance issues like yours.
I just looked at my timing, and from your discription, it looks to be one tooth advanced. In other words, with the "T" showing through the view hole, the dot on the gear is closer to the 11 oclock position, but not that extream.
Is this worth messing with?
I just looked at my timing, and from your discription, it looks to be one tooth advanced. In other words, with the "T" showing through the view hole, the dot on the gear is closer to the 11 oclock position, but not that extream.
Is this worth messing with?
#65
Ok, totally messes with time settings. One tooth either way took the timing mark way past the case marking. So now it is back where it started, and I am still happy with the results.
To bring things together alittle;
-Check the timimg first.
-unlock the carb and resize the jets..Or a new carb
-Then go for after market parts.
The timing was not too hard to mess with, just look for the timing marks, and case markings.
To bring things together alittle;
-Check the timimg first.
-unlock the carb and resize the jets..Or a new carb
-Then go for after market parts.
The timing was not too hard to mess with, just look for the timing marks, and case markings.
#66
all that matters is that it runs good.. no reason to mess with it if it does -
honestly I would never have bought this carb if I had figured out the timing first
I am surprised you found it easy to change.. do you know where the the cam tensioner is? mine had so much tension I had the use a screw driver as a lever to pry the gear back on. Also, did your head have a top dead center mark?
#67
There is one option i have seen. On ebay, go figure, there is an adapter that looks to asentric by nature. I cant fully tell, but it should be set up to offset the carb for clearance issues like yours.
I just looked at my timing, and from your discription, it looks to be one tooth advanced. In other words, with the "T" showing through the view hole, the dot on the gear is closer to the 11 oclock position, but not that extream.
Is this worth messing with?
I just looked at my timing, and from your discription, it looks to be one tooth advanced. In other words, with the "T" showing through the view hole, the dot on the gear is closer to the 11 oclock position, but not that extream.
Is this worth messing with?
is it just the circle thing with a bunch of holes?
that may work if it attaches to the head and will let me run the carb out the side, sorta like a harley, lol
and 11 sounds pretty far off, but if you are happy with how it runs, then that is all that matters
#68
the line next to the T should be straight up for top dead center, I dont remember what the F indicated, it is some other spot in the timing
all that matters is that it runs good.. no reason to mess with it if it does -
honestly I would never have bought this carb if I had figured out the timing first
I am surprised you found it easy to change.. do you know where the the cam tensioner is? mine had so much tension I had the use a screw driver as a lever to pry the gear back on. Also, did your head have a top dead center mark?
all that matters is that it runs good.. no reason to mess with it if it does -
honestly I would never have bought this carb if I had figured out the timing first
I am surprised you found it easy to change.. do you know where the the cam tensioner is? mine had so much tension I had the use a screw driver as a lever to pry the gear back on. Also, did your head have a top dead center mark?
Thats how I figured. The line to the left of the T was what was visible through the sight hole, right in the center. I did remove the cover and looked very hard, but could not identify a case marking there. Put the cover back on and used the sight hole.
I did find the case marking by the cam gear. "TDC" After removing the cover to expose the gear, I did not see it at first. After awhile of looking around, I found it at the top, more on the inside of the seal mating surface. Just look a little deeper in side the hole.
As far as changing the timing, once I removed the three screws on the cam gear, I put a little pressure on the bottom side without the chain and it popped right off. Moved the chain foward, or back on the gear, then moved the came mounting holes to match. I did not see or find a tensioner of any kind, and I also uses a screwdriver to get the gear back on. I could feel the tension, and I did not feel like I was going to break any thing. I am no longer afraid to change the timimg.
#69
here are some better pics with the new carb fitment problems
here you can see if it went in as the stock one did I would have to space it up a good .5"

carb 3 by dkluck1, on Flickr
here the manifold is where it goes, but the carb points out, clearing the starter.. this will probably be the solution.. the only problem is the air filter will be by the boys leg, but thats ok

carb 4 by dkluck1, on Flickr
so I am going to order that multi posistion manifold and cross my fingers
here you can see if it went in as the stock one did I would have to space it up a good .5"

carb 3 by dkluck1, on Flickr
here the manifold is where it goes, but the carb points out, clearing the starter.. this will probably be the solution.. the only problem is the air filter will be by the boys leg, but thats ok

carb 4 by dkluck1, on Flickr
so I am going to order that multi posistion manifold and cross my fingers


