Honda Spree and Elite 50 Forums

I've always thought you could have those case interfaces bored and resleeved. But I've never looked into having it done.

Check exhaust flow.
Performance on stand doesn't tell you much. Spree should take off fairly well, but then take a while to get to top speed. But you'd remember that from 10 years ago.
Spray around carb with ether or similar, looking for air leaks in intake tract.

Personally, I'd redesign a plug and 3D print in either clear or other plastic, running several full threads on the plug, then source a circle gasket in the correct diameter (or print one from TPU.) You'd need to seal the 3D printed part.

Alternately, source a plug in the correct thread diameter ...

Good to see account's working again.

Check your main jet size if you haven't yet. Should be 65 or 68. I assume you've already cleaned the carb, since the usual issue is they won't idle if the carb's dirty.

Revving on stand doesn't tell you much in my experience. They run completely different unloaded.

Check the spark plug boot ...

Dad flew those.

Unsurprisingly, my hobby is fixing broken stuff. Right now I've got a 100 year old industrial leather sewing machine on my workbench waiting for me to fab a part.

Check every gasket in this set and make sure they're OK on yours. https://www.ebay.com/itm/142207616725?_ ... ust+gasket

The crank seals are the other things going on these bikes, 40 years after production, and should probably be replaced too.

Is the exhaust gasket on the Helix a hard part to find? Haven't heard that one before.

The bogging issue is usually related to issue from the air filter. Spree, for some reason, are really sensitive to changes on that end. For example, a pod filter will do exactly the same as what you describe.

So, is the air filter in place, oiled, with the air filter cover on and screwed down?

Bogging sounds like intake side issues. How are the air filter and filter box? Those in place?

The "random throttle up" is an air leak, most likely in front of the carb (either intake or the thermal decoupler between the carb and the intake.)

I also, finally, added SSL. That's a long overdue change.

Yeah, I'm not sure if it's the changes to the site, to the way the DNS is set up, or the fact I dumped 1000+ browsing bots off the site.

One thing I’m noticing is the site appears to be much faster now.

... and done. PM me if there are any issues.

Site's been updated to most recent version, along with updating backend versions.

Getting SSL set up and working is next after some other coming changes that no-one that posts here will notice.