Home Auctions Gallery Forum

honda305.com Forum

Vintage Honda Owners, Restorers, Riders and Admirers


Search found 7 matches

by stelrad
Sun Oct 19, 2008 4:52 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Just to thank everyone for their assistance. Bike now runs really well. Ended up buying another pair of carbs from Ebay in the US. The pictures on Ebay looked better than they actually where though. The new carbs had chrome sliders whilst the old ones did not have any sign of any chrome. Not sure if...
by stelrad
Wed Oct 08, 2008 7:56 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Thanks for the ongoing help. Just double checked the flow from the petcock to each carb and that seems OK. Also checked the fine mesh filter in the banjo on each carb and they where OK as well. Double checked the timimg etc just to make sure. Can still re-create the problem by swapping the carbs ove...
by stelrad
Tue Oct 07, 2008 8:31 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Still no joy. In desperation I've bought another pair of carbs from Ebay - should be here in about 10 days. Was tempted to buy a pair of Amal Concentrics but didn't want to upset LM.
by stelrad
Tue Sep 30, 2008 3:44 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Thinking about it logically it has to be the float height. The carb kits had new float valves and needles which I fitted and measured the float height to be around 26mm. However the CB77 should be 22.5mm. The petrol in the float bowl must therefore be around 4mm lower than it should be which means t...
by stelrad
Mon Sep 29, 2008 1:58 pm
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Thanks Steve - The float bowl has petrol in it - when you unscrew the brass screw it pours out - not sure if there's enough in it though. I suppose the bottom of the jet has to be below the level of the petrol in the float?

I was in Mallorca last week
by stelrad
Mon Sep 29, 2008 10:42 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Engine only firing on one side

Thanks for the quick reply. I've blown the carb out with carb cleaner and put back the original jets but cannot see anything obvious - it all looks clean. As you say maybe try another carb - if I can locate one. It's got to be something obvious but after two and a half days of messing about with it ...
by stelrad
Mon Sep 29, 2008 9:22 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Rebuilt engine only firing on one side
Replies: 16
Views: 7725

Rebuilt engine only firing on one side

Hi guys - My first posting and a plea for help. My CB77 only seems to firing on the right hand cylinder. I've rebuilt the engine with new pistons and rings etc and tuned it as per Ed Moores tuning recipe. The left hand cyclinder is popping and spitting and barely running at all. If I remove the left...