honda305 Home honda305 Auctions honda305 Gallery honda305 Forum


honda305.com Forum

Login
□ Search
□ FAQ 
□ 
Vintage Honda Owners,
Restorers, Riders and
Admirers

Search found 10 matches

by DrMowl
Sun Sep 06, 2015 1:41 pm
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Cb250 Pistons for CB72
Replies: 12
Views: 6142

Hey Brian, seems like a lot of you guys have made their own spacers/gaskets. How do you make them fit well? It's not that hard to get make a gasket out of paper, but to apply it on aluminium and cut the aluminium exactly is quite hard without the proper tools. What kind of spacers on the cylinder st...
by DrMowl
Mon Aug 31, 2015 8:23 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Cb250 Pistons for CB72
Replies: 12
Views: 6142

Somewhat 'dicey' advice..............especially when oversize CB72 pistons & rings are available. You should maintain no less than 0.75mm clearance between the piston and the head/valves. DO NOT mill the pistons........that's very risky..........but the sharp edges should be smoothed..........The s...
by DrMowl
Mon Aug 31, 2015 8:21 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Cb250 Pistons for CB72
Replies: 12
Views: 6142

Re: Cb250 Pistons for CB72

How about asking your friend? You might just go to +3 mm and use a set of Hap Jones Pistons made for this engine. http://www.ebay.com/itm/Honda-CB72-CL72-250-Scrambler-S12-3mm-Oversize-Piston-Kit-Rings-Pins-Clips-/331471566428?hash=item4d2d3eb65c&vxp=mtr G Hey there, Since my CB72 cylinders were al...
by DrMowl
Sun Aug 30, 2015 3:41 pm
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Cb250 Pistons for CB72
Replies: 12
Views: 6142

Cb250 Pistons for CB72

Hey there, Since my CB72 cylinders were already too worn out I had to change the bore to 56mm and use CB250 pistons. A good friend of mine who works a lot on CB72 engines ensured be that it's possible to use them. Now the Pistons fit in the cylinder but not in the cylinder head since they have a wid...
by DrMowl
Thu Sep 26, 2013 8:51 am
Forum: Wanted - Parts | Bikes | Services
Topic: Looking for a CB72/77 camshaft
Replies: 0
Views: 856

Looking for a CB72/77 camshaft

I'm looking for a camshaft for my '64 CB72. Heard that the CB77 camshaft will fit, too. My brother's currently in New York, so I have to use this opportunity to save the transcontinental shipping costs.
by DrMowl
Fri Sep 20, 2013 2:57 pm
Forum: Honda Superhawk - CB72 | CB77 | CP77 | CBM72
Topic: Student with a CB72 from Germany
Replies: 10
Views: 7373

yes i do have a manual, but in my opinion it's explained rather bad :/ What do you mean by the head being damaged from hard knocking? Your picture looks like the camshaft is bent or broken. Is it? Or is it a wide angle shot that just appears bent? The right side cam is at an angle compared to the le...
by DrMowl
Thu Sep 19, 2013 2:46 pm
Forum: Honda Superhawk - CB72 | CB77 | CP77 | CBM72
Topic: Student with a CB72 from Germany
Replies: 10
Views: 7373

Can't anyone help me?




 

CB-77 | CYP-77 | Road Test | Riding Log | Literature | Zen | Marketplace | VJ Survey | Links | Home