Can anyone tell me how much gear box oil you put in my 2015 Beta evo 250 for just an oil change, can't find the amount anywhere ! think its 550ml from dry but 450ml for a change ,can anybody confirm that please.
Hi, just had the same problem with my 2012 GG 250, rebound adjuster on the forks made no difference full hard or soft, stripped them down tonight to find metal fragments in the shim stack holding the shims open ! also had metal bits in the brake fluids,this is a new bike with less than 20 hours on it,
Having had Jap MX & road bikes all my life ( must have owned upwards of 40 bikes in my time, ) never have I seen such poor build quality & thats saying something having owned a KTM ! the Spanish biuld quality is crap ! not just GG but the Sherco I had was as bad !
Hi Ray, your having all the same problems that I had with my sherco, never did get the carb to work right, only thing that did worked was to get a Gas Gas no help to you at all, sorry
Just changed the oil on my Formula brake & clutch system & they were very dirty, the bike has only done 5 hours from new, have heard stories of them coming from the factory with metal partickles in the oil from the maufacturing process, thats why I changed it but in all fairness there was no bits in mine, just very black oil.
I have not seen any yet , but have heard that the hand levers have only one adjustment,for the static position ,or reach of the lever from the bar, yet are lacking any adjustment for the "biting point" or engagement point for the clutch or brake. Is this true ? and if so how can the bikes be set up to suit different riders preferences ,or the size of their hands and fingers ?
True there is only one adjustment on the lever but it does work very well in my opinion
Mine has just blown the rear caliper seals on my third time on the bike yesterday from new, les than 5 hours riding Having said that, they worked great, just hope this isn't the shape of things to come !
Hi mate, I also have a 250 txt pro 2005,I run mine on Putoline TT trials pro @ 80:1. thats 63 ml of oil to 5 litres of petrol. never had a problem , trials bike engines dont need the volume of oil in the petrol that a moto x engine does. 80:1 is what GasGas recommends.
Hi, I have a txt pro 2005, clutch on mine was a little heavey compared to newer bikes. I fitted a 2006 bevel spring ( this is the clutch spring ) & it did make it lighter to pull in.
Thanks for input guys,I'm not interested in a 4t, never rode one so not about to buy one, Montesa are way over priced, Rode a beta, don't like um.For me only interested in the Sherco or the GasGas,both have pro's & con's.My son has a 2005 GG txt pro, 7 years old & apart from wear & tear she still rides well,my Sherco has been very reliable in the time I've had it,I supose it's going to come down to which one looks the best to me
OK guys , who has bought a new 2012 250cc Gas Gas or Sherco, I want to get one but unsure which one to go for, have a 2011 Sherco 290 at the moment but after 5 months of riding it I feel a 250 suits me better, not been able to blag a go on either model yet so I was wondering what the people who have them think of them, good or bad ? I am over 40 rider doing yellow route trials so no expert, I know a new bike wont make me a better rider but I do seem to spend too much time controlling the power rather than riding the bike if you know what I mean, your thoughts would be very welcome,
As the title says, has anyone done it ? were the results worth it ? while my bike aint bad, it aint running as well as it could & i am sick of messing with the carb, your thoughts please.
Usually they tend to run lean though so you may find that it is your head spacer causing the bike to run rich and you may have to lean the mixture off, your pilot jet is a bit bigger than standard as they originally came with a S33, check to see if yours has a S or a U type Jet as if it is a U36 that sounds about right, see here for more details: http://www.splatshop.co.uk/dellorto-vhst-pilot-jets.html
Thanks very much for the help today, hopefully this will sort out the problem.
Stripped the carb to check jetting, seems the last owner has made some changes going by the std setup in the manual.
Std jet in the book are ,
main #128
pilot #33
needle clip 2ond + 1 clip 0.5 ( this is the exact wording in the manuel, not clear to me . )
float hight 21mm. ( not sure of the exact point you measure )
My findings are,
main #126,
pilot #36
needle 3rd clip ( middle with the small spacer washer on top )
float hight 19mm ( if measuring from the "o" ring face on the carb body to the tip of the levers with the carb up side down is the right place to measure ? )
The last owner did tell me he had an S3 head on it but took it off to sell it, he also said he had not changed anything !
On the subject of head spacers the one I fitted works really well,it just takes the sharpness away when you open the gas, it has no adverse affects on the mid & top end power that I can tell, rode a trial on it last week end & it was definatly easier to ride on the real slow stuff,just dulling the power in a suttle way. It's not night & day different but anything that makes riding the bike easier is good in my opinion.
As I recall that bike (290)still came with the Dellorto VHST 28, as compared to the PHBL(round slide)on the 250. I have not owned one of these carbs, yet it is said that they are very sensitive to float level settings to within 0.5mm +- from the factory setting.
I think it takes some real patience to make this carb work really well, and I would highly reccomend you give Chris Pearson at Splatshop UK a ring to discuss your best options here.
Depending upon your requirements, you may be better off with a standard PHBL that tends to be less jikky in it's running, or there are other options.
Thanks for that, i was thinking of swapping it for a keihin that the 2012 come with as std, but don't want to go to those lengths if I can get this one to work
Has anybody changed the jetting from std,can't seem to get mine to run clean, done all the checks,air filter,crank seals etc, but it still runs very rich, I am running a semi synthetic oil at 70:1 at the moment,was running a full syn oil, tried that at 80:1 & 100:1 but still really rich, that's when I changed to a semi, what are you guys using ?
Hi, clutch must have a mineral based cluth/brake fluid in it or the seals wont last, gear box have ATF, personally I use a BP product in the clutch & Silkoline ATF in my gearbox on my 2005 Gasser, hope this helps
Ive taken the tyre off now, although my rim has no leaks or damage I suspect it is part of the problem,I've fitted the IRC to my Gas Gas which is also a Morad rim the same as the Sherco but it stays up & seems fine, refitted my old Michelin back on my sherco & that stays up & also fine with no leaks.It does'nt make sence, maybe the Sherco rim is a bit smaller ? why would one tyre work but another make not ? only thing I do know is i will not be buying another IRC , it has cost me far more than the
sounds like you need to do the bubble test properly if the tyre is leaking you will see,it if its the rim you will see it.Simple
Thats the problem, it does'nt leak !I've had the wheel completely submerged and it does not loose any air from anywhere. ride it, then it goes down, if it was "simple" I would have sorted it long ago !
well rode the bike with the other new tyre on, fitted by Leasure Trail using a Putoline rim sealing compound, gave it 48 hours at 20 psi before I rode it as the guy who fitted it suggested & guess what, 20 minutes & it's flat . I can't beleive that it could be a second tyre faulty, but it does not go down until you ride it.Going to put my old Mich back on today & see what happens, this is realy doing my head in now.Friend of mine with the same bike has bought an IRC & has had no problems, only difference is I have the Morad rear rim & he has the DID, must be the Morad rims ?
well took my wheel back to the shop where i got the tyre from today, Leisure Trail in Long Eaton & credit where credit is due, after a little discussion they agreed to removed it from my wheel & fitted a new one free of charge,many thanks guys, we will see how I get on with it, I really hope that sorts it as the tyre did work quite well.
no help to you at all, sorry 
Having said that, they worked great, just hope this isn't the shape of things to come !
. I can't beleive that it could be a second tyre faulty, but it does not go down until you ride it.Going to put my old Mich back on today & see what happens, this is realy doing my head in now.Friend of mine with the same bike has bought an IRC & has had no problems, only difference is I have the Morad rear rim & he has the DID, must be the Morad rims ?
How Much Gear Oil ?
in General Trials Talk
Posted
Thanks guys