Jump to content

Travis2626

Help with 1975 Yamaha ty 175

Recommended Posts

So my 1975 ty175 will start right up after sitting for about a day but after riding it for a bit the bike will die and not start again for a few hours/overnight. If anyone has suggestions about what the problem might be it would be greatly appreciated!!

Share this post


Link to post
Share on other sites

Last time I had a problem like that it was a bad ignition coil.  Could be a bad spark plug as well.

 

good luck.

Share this post


Link to post
Share on other sites
1 hour ago, jonnyc21 said:

Last time I had a problem like that it was a bad ignition coil.  Could be a bad spark plug as well.

 

good luck.

Yes a bad coil will heat up after use then tip over,plugs well I find in lawn movers ,chainsaws,scooters and ride -on mowers they don't appear to last long....a fuel quality thing,not really sure?.

Share this post


Link to post
Share on other sites

Good point, I forgot about the fact that a 75 TY175 would have points.  

I agree with lineaway, condenser and points then check your coil.   

Share this post


Link to post
Share on other sites

Depends where the previous owner fitted the condenser, it could be next coil or still in original position behind flywheel/mag. Check carb breather pipes not kinked, crushed or blocked. Fuel tank cap breather is this clear as guy53 suggested. Full ignition check, contact face condition (dark royal blue colour on contact faces indicates condenser ? Air filter is this clean and unrestricted/ bunged up with crap etc. Is exhaust relatively clear and not carbon loaded or oiled up. Piston is compression good and not too noisy piston slap wise, rings could be gummed up and causing running issues. 

At the end of the day diagnosing running faults etc is very difficult at a distance but hopefully you have enough to go at. Let us know if you sort the problem🙂🤞

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×