ajc1989

Apologies, forgot to mention in the first reply. I have tried this technique - I put ptfe tape on the threads of the bleed nipple and a light smear of grease around the outside of the syringe hose to help provide an air tight seal. I was unable to push any fluid up the system. I wanted to try push fluid up to the reservoir, but couldn't push any fluid at all. Felt like there was pressure against the syringe preventing fluid movement up the hose.

I am having issues with my rear brake on my GasGas TXT 2010. The bike features the rear brake model with a separate reservoir and hose line through the rear swingarm. My rear brake was functioning (although not particularly well) prior to rebuilding the master cylinder. Since fitting a new piston, I have been unable to get any fluid to flow from the master cylinder to the rear caliper. I appreciate this topic has been covered in various forms previously and I have look through most threads to date. The situation has become very frustrating and I’m just looking for any advice which might assist! I have outlined all the attempted techniques/issues I’m encountering so far. Rebuilt the master cylinder with a new seal kit. Piston appears to return to rest position fine. Master cylinder piston appears to function correctly. No significant friction when the piston is pushed down System won’t push or pull fluid through. I have tried attaching a syringe directly to the master cylinder inlet port. This was met with resistance and I was unable to push any fluid from the inlet port through to the caliper bleed port. I have also attempted to connect a syringe to the reservoir hose and push fluid through whilst activating the piston. Again, this was unsuccessful with no fluid pushed through. I have fluid flow from the reservoir to the inlet port on the master cylinder. The inlet port was cleaned out upon rebuilding the caliper. Unable to get any fluid to pump from the master cylinder to the rear caliper. Tried bleeding in a conventional way with an Allen key and 8mm spanner on the bleed port. Attempted to use a syringe on the bleed port to create a vacuum and pull fluid up through the bleed port. Unable to pull any fluid up this way. I am unsure if all of the above points are pointing towards a new master cylinder? Although the new piston appears to operate correctly in the master cylinder bore. Any help would be muchly appreciated to aid my frustration!

Thanks for the replies all. No one has yet to mention that the stator maybe at fault? Just thinking if its worth getting this checked out before the CDI?

When fuel was put directly into the spark hole the bike didn't fire. I will look at adjusting the spark plug gap as suggested. I have double checked the floats previously and pretty sure they are corrected oriented. I've double checked the spark plug cap, fitted correctly.

I'm having some issues starting my GasGas 280cc TXT. I have had issues starting over the last couple of months, with the bike getting progressively harder to start. On a recent ride this week the bike would start but struggle to run without the throttle opened up and would cut out very quickly. Played around with idle screw with no change. Bought the bike home following the ride and cleaned the carb out with the same issue occurring. Cleaned the carb out again and attempted to restart the following day with no success. Cannot get the bike to even start now (not even close..) So far in trying to get her running: Tested the compression - No issue with good compression reading from bike Put a thimble of petrol directly in the head - No success starting following this. Cleaned out the carb a number of times Fuel petcock working fine, seems to be a good fuel supply from tank. Spark: Appear to be getting a spark (not particularly strong though) but with the plug removed seem to be getting a spark on every kick. Fitted new plug etc - no positive effect. Kill switch - Disconnect kill switch, still not starting. I appreciate that the forum has a number of similar threads on non starting bikes, had a trawl without any success as of yet getting the bike up and running again! Fairly inexperienced with respect to motorcycles (from an mountain bike background) so any help appreciated! Just want to get her up and running again!