Running problems

[dklassig]

Hi all,

I am having problems with my 95 TRX. It hasn't been running for about a year now. The issue I am having is I can get it run but it will only run for a total of 38 seconds, timed it numerous times, and sops with a backfire. I'm not sure where to start looking. I was thinking it could be fuel tap related with a vacuum problem any help is appreciated. Lasso

[alextrx850]

Assuming you haven't changed anything since last year when it was last run..
The carburettors will likley have to be cleaned.
Fuel gum residue.

[dklassig]

It was playing up then. I just haven't had a chance to fix it. I have had a few goes at it.

[Mincehead]

Hello and welcome, membership all sorted I see.
Yes very likely `tarnish` from stale fuel, you MIGHT be lucky to get most of it out with fuel system cleaner, but better would be an ultrasonic clean.
The fuel pump `may` have a split diaphragm or there could be vacuum loss through a perished or ill fitting hose too. Give it a damn good inspection.
Oh and whip the plugs out, check and clean them at least. I replace plugs if they`ve sat for long periods of time, you can find moisture has got past the electrode / ceramic interface and compromised them. A blow torch on a freshly cleaned plug will help drive out any trapped moisture.