Greetings! New to triumphs, I just picked up an old Tr7 that had been sitting for a while and am having a hard time getting it started ( again) What I’ve done so far: I just installed a brand new Amal 930 premier carburetor and some new plugs and after monkeying with the carb yesterday I brought her to life for the first time in years, got it idling pretty okay for a while and called it a day. The next day however, After trying to start it all day, I got it running for a few minutes until, I tried adjusting the pilot air screw and it killed on me. I haven’t been able to start It since. Here’s a video of it running yesterday: https://imgur.com/a/q3SdCBZ Anything sound weird? I’m totally lost.
Maxwell Welcome to the family. Yes you have a nice machine there. You really just got to check the tappets and make sure your new carb is jetted properly. What electric's are you running points or electronic. If points make sure they are adjusted and set properly and all the bits are sound. Really is trial and error there but you will get it I am sure. Also make sure your coils are in good order. Regards Joe.
Hi Maxwell and welcome on board! You don't mention in your description whether or not you cleaned out - and sealed - the fuel tank. If the bike has sat around for a long while it's quite possible that rust on the inside of the tank is flaking off and blocking the inlet, and possibly the jets and passages, in the carb.? As it's a new carb it should be fairly easy to clear with carb cleaner aerosol and a straw. If that's not the case, then you'll need to go back to basics - check for sparks, fuel and valve clearances then let us know what, if anything, you find. Good luck.
As it was running yesterday I would be looking at Fuel and sparks as my 1st port of call. as previously said before. I don't think the valve clearances would change that quickly to stop it running. but a loose tappet is a happy tappet on the old triumphs
Thank you all for the advice, I got her starting good now. Let it sit overnight and this morning I backed out the throttle adjuster on the carb and set the air screw to 1 1/2 turns and tuned it from there.
Maxwell Great news. Glad you are sorted. Poor old girl maybe just wanted a rest. Ride Safe & Enjoy Joe.
