Honda Spree Carb Jets

Recently I put on a K&N filter onto my honda spree. The filter is really a breather for an engine, but i managed to get it to fit onto my Spree. Now it seems that it gets too much air. I tried the adjusting screw, but it didn't help. Should I replace the jet with a bigger one to offset the increased airflow??? I took the jet out and it had a 68 stamped on it. If I can get a bigger jet, would it be a 67 or a 69??? By the way at speeds above 25 my scooter bogs down...could this be another problem besides the jet??? It seemed to happen the same time I replaced the filter. Thanks

Re: Honda Spree Carb Jets

Ron Brown /

Josh,

You need to do some "plug chops". Search the site for this, it may even be in Fred's "How to fix your moped".

Ron

Re: Honda Spree Carb Jets

A plug chop is where you run the engine at a given speed and then turn it off right away and check the color of the plug. So in my case at 25 mph I cut the engine and check the plug. Then according to the color I change my jets. The darker the pug is being too rich and the lighter the plug is being too lean, and ideally it should be a light brown.

Thanks Ron,

Josh

Re: Honda Spree Carb Jets

Ron Brown /

Josh,

Exactly. Dont even close the throttle, just hit the kill switch.

Ron

Re: Honda Spree Carb Jets

Morgan Patterson /

When doing a plug chop, should you wait for the engine to cool down before removing the plug (to avoid stripping it?)?

Morgan

Re: Honda Spree Carb Jets

Ron Brown /

Morgan,

No, you can take them out hot, but you might burn your fingers!

Ron

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