Honda305.com Forum

I have a lot of respect for "rustorations" and most of my projects are on that level. Patina can be a deep asset and easily lost. I take great delight in having a variety of machinery working well, regardless of the cosmetics. When I can afford it, I buy something in great condition and do my best t...

Only the lead and the plug cap left and you'll have a new cap on that side soon. While waiting for the new one, can you swap the caps? Maybe you'll have one more data point. I agree with Deuce - you're going through this methodically.

Welcome to the honda305 Forum! Go here: https://www.honda305.com/registry/ ...enter your bikes and I will cross check them against other numbers in the registry for the exact model year. For now, mid 60s is a pretty safe estimate. -- Michael PS I am travelling right now. Should be able to follow up ...

Soda blasting? ...or would that overclean the aluminum?

Welcome to to honda305 Forum, Bill !

I love Superhawks in white and look forward to following your progress!

--
Michael

Try the ATF/acetone after the MMO, who knows... One other approach is to use a grease gun. If you can come up with an appropriate grease-gun-to-spark-plug hole interface (fabricate an adapter) - this is one more method to try before a mechanical interface or a teardown (save for next, save for last)...

Before you split the case, try filling / soaking the cylinders with 50/50 ATF & acetone. Give it a few days or more. More is better. You may get some movement, but do not force it. Soak, try and repeat. Do some data mining on this site for a lot of additional documentation on this from some very hig...