2018 xc250

B

brico

New member
Hello all! New to the forum and new to GASGAS and new to owning a 2 stroke. I just picked up a dealer display with less than 10 hours according to the dealer. When I picked the bike up it had maybe a gallon or less of gas in it. Brought it home rode it around and fell in love. Now that gas is gone and they weren't sure what premix was used. I've now gone with Belray Si-7, 50:1 with 5 gallons of clear gas. ( per their recommendation) Now I kinda feel like there is a little more smoke at start up than with the other gas, and I have noticed just a tad bit of pooling around the edge of the tailpipe....Just a little. Is Bel RAy Si-7 at 50:1 good choice or is there something else you guys recommend?

I have the bike for trail riding and putting around, none race bike.

I'm posting this to get feedback from all you GASGAS experts just to make sure I'm doing all the right things to keep the bike running well. Any and all feedback is welcomed.
Thanks in advance for all your feedback!
 
Last edited:
brico said:
Hello all! New to the forum and new to GASGAS and new to owning a 2 stroke. I just picked up a dealer display with less than 10 hours according to the dealer. When I picked the bike up it had maybe a gallon or less of gas in it. Brought it home rode it around and fell in love. Now that gas is gone and they weren't sure what premix was used. I've now gone with Belray Si-7, 50:1 with 5 gallons of clear gas. ( per their recommendation) Now I kinda feel like there is a little more smoke at start up than with the other gas, and I have noticed just a tad bit of pooling around the edge of the tailpipe....Just a little. Is Bel RAy Si-7 at 50:1 good choice or is there something else you guys recommend?

I have the bike for trail riding and putting around, none race bike.

I'm posting this to get feedback from all you GASGAS experts just to make sure I'm doing all the right things to keep the bike running well. Any and all feedback is welcomed.
Thanks in advance for all your feedback!
Click to expand...

Try an oil with a lower flash point. I use Motul 710 at 50:1 with good results in my 250. The bike is on its third top end, around 90 hours for each piston, and rings were still barely in spec and cylinder is looking good.
 
Jacob 'Berg said:
Try an oil with a lower flash point. I use Motul 710 at 50:1 with good results in my 250. The bike is on its third top end, around 90 hours for each piston, and rings were still barely in spec and cylinder is looking good.
Click to expand...

Right on! Thanks for the feedback!
 
My 2018 is a spooge cannon.. I'm running half a clip richer than I normally would.. and in a 70km loop have spooge dribbling all the way back down the length of the can!
 
MotoHead said:
Bel Ray Si7 has a flash point of 194 so he's fine there. And yes 50:1 is okay. Spooge can be minimized with proper jetting and proper premix for riding style.
Click to expand...

sounds like i need to have it properly jetted for low speed trial riding? JD jett kit maybe?
 
Congrats and welcome to the family :D

The Belray is fine and so is the 710 Motul. I use the 710 too and so do many others.

All 2018/2019 Gassers like to spooge a bit more than the competition. Spoke to James Dean as it was not possible to have the bike running perfect without spooge and I tried a lot of different needles and jets. Jim said, forget it, prefer a few drops of oil with proper jetting instead of having a dry can but a bike that is probably running on the lean side :-)
 
brico said:
sounds like i need to have it properly jetted for low speed trial riding? JD jett kit maybe?
Click to expand...

Correct. And I have no experience with the JD kit but it seems to be popular for many. I believe it makes jetting more straight forward especially if you aren't very familiar with jetting in general. Do some research as there is lots of info out there. There is also a few jetting threads on this forum. ;)
 
Gassers seem to run cooler than the orange (and white) 2 strokes in my experience - that may explain a little more spooge. If properly jetted and you run an oil with a flashpoint below 200f the spooge won't be much and it is easy to remove with WD40 and a paper towel.
 
Doc Brown said:
Congrats and welcome to the family :D

The Belray is fine and so is the 710 Motul. I use the 710 too and so do many others.

All 2018/2019 Gassers like to spooge a bit more than the competition. Spoke to James Dean as it was not possible to have the bike running perfect without spooge and I tried a lot of different needles and jets. Jim said, forget it, prefer a few drops of oil with proper jetting instead of having a dry can but a bike that is probably running on the lean side :-)
Click to expand...

My 2013 model used to spooge a lot until I cut the exhaust back shorter.

As above my 2018 has the head modified and jetting is a bit on the rich side, but certainly not 'too rich'.. Doesn't break up and pulls well.

Combination of riding technical terrain lower in the rev range with a huge big pipe that doesn't get overly hot.

I'm certain that its just the exhaust is too big for purpose. Keeps it quiet, but doesn't get hot enough and just accumulates more and more until it dribbles out the end.
 
I intended to. I removed the can and opened it up when I first got the bike.. But would have needed to do some cut and welding and figured I'd just ride the bike instead.

My experience on the 2013 was that cutting the pipe back helped a lot!
 
Ah, I've heard some types only need to be cut down with no welding required. I only want it shorter for cosmetics really, it is extremely quiet as it is so I'm not worried about becoming a 2 stroke trumpet
 
took the bike out to Shotgun Creek trails yesterday, low elevation forest trails. I was able to spend more time on the bike this trip. I noticed is that through all gears, unless i really opened up the throttle, the bike sounded like to was sputtering and bogging tremendously. At times, i couldn't even make it up some of the hilly trails stuff unless i opened up throttle way more than my comfort level. Does this indeed sound like a jetting issue? i ordered a JD Jetting kit today and hopes that fixes it. Other wise the bike seems fine.
 
brico said:
took the bike out to Shotgun Creek trails yesterday, low elevation forest trails. I was able to spend more time on the bike this trip. I noticed is that through all gears, unless i really opened up the throttle, the bike sounded like to was sputtering and bogging tremendously. At times, i couldn't even make it up some of the hilly trails stuff unless i opened up throttle way more than my comfort level. Does this indeed sound like a jetting issue? i ordered a JD Jetting kit today and hopes that fixes it. Other wise the bike seems fine.
Click to expand...

Yes, stock jetting is rich, also the head is pretty inefficient so you will want to get the squish set correctly
 
?Squish?? I?m not sure what that is? If you don?t mind explaining what that is and what is does? Thanks again for all of you guys input and knowledge
 
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