67` Bomber running problems

[Bryanj]

Honda part numbers are not complicate, the first numbers tell you what it is, the middle three what model first used on last three manufacturer or country code or supercision code so 283 is the model code you need, the supplier said sounds like 280 which is different

[AshimotoK0]

Yes it does have a recessed ring section on one side Mo.

I don't have access to it for a couple of days though to measure again.

[royhall]

Sorry Mo only just catching up with the thread. Been dealing with medical issues, two weeks holiday, the a bike trip to the Isle of Man to scatter my mates ashes. Busy few weeks.

If you have a look at   www.Cruzinimage.net   they have the sprocket and the tank rubbers you need. The sprocket I used was the 68-74 item (35 tooth) and it fit just fine. When you do the search use CB450K leave off the zero or you wont get any results. On this page, don't use any rubber items that come into contact with petrol or oil as they wont last. Don't use the gaskets as they are crap. And for heavens sake don't ask them any questions or they will blacklist you.

I don't think we used the same carb kits as mine were for a K3 and yours K0. Ironically I have two sets from Cruzinimage to rebuild my 14C's so I will get in the garage later and measure the needles against Ash's Honda upgrade parts that I will be using. I will report back later with what I find.

[royhall]

Just checked the carb parts, Ash's upgrade kit versus Cruzinimage K0 set. The needles mike up differently but are the same length, the drillings in the emulsion tubes are a different pattern and possibly different hole sizes. I am going to ultrasonic clean the upgrade parts and use them in the 14C build. I have a pair of rebuilt 14H on the bike at the moment but I still think it's running rich. Not really had chance to take it out recently so I could be wrong. Just waiting for some floats to rebuild the 14C then I will know for sure.

[AshimotoK0]

Ha Ha ...what brand of chocolate are the Cruzin sprockets made of Roy 

[royhall]

I know what you mean Ash, but they do appear to be good quality. As with the rubber bits they may dissolve when you oil the chain though. Actually their piston kits are very high quality.

Sent from my Pixel 7 Pro using Tapatalk

[royhall]

When I get a chance I will check the upgrade parts against the standard parts and see what the difference is.

Sent from my Pixel 7 Pro using Tapatalk

[royhall]

Just checked the original needles that were in the carbs when I got them and they are the same as the upgrade needles. Must have already had the fix.

Sent from my Pixel 7 Pro using Tapatalk

[mo goldie]

Hi Roy

Welcome back ...sorry to here of you mates passing sounds like he has gone to the right place mate I,O,M.

Thanks for that info as just gone in and ordered both front and back Sprockets ...... did Not say anything about how long it would take to get here but at least then it should all be good............

As for the running of the bike I have sorted it and it run`s fine with no real issues so I am well pleased there is No flat spots around the 4,000 at all now but a bit of a flaff when starting up from cold on the left side but as soon as Hot No Problems, I have been playing around with the Mixture screws a lot as first time out on the over run it was popping and banging ..that turned a few heads but I have got it spot on now as the spark plugs are just the right Colour so Not running rich or weak....... so when I go out on it I don`t have any problems other than trying to get my head around the rev`s as at about 60 mph its doing around 6,000 revs....sounds like I am revving the guts out so to speak as Not used to having a bike that rev`s as high as that before.... that is one reason I wanted to put a 17 T front sprocket on to see if I bring the rev`s down,,,but Might be a bit of a tall order with going up 2 Teeth...so as I say just ordered the 15T and the 35T ...so thanks again Roy    

Oh the Needles that I have Now got in are about 5mm longer that the ones Ash gave me to try.....they were with the bike when I got it.

[Bryanj]

6000 is no where near the red line and dont think its anywhere near the 85% i would cruise at, cameras permitting!

[mo goldie]

Well as I say Bryan

Not used to Revving an Engine that hard....yes as you say No where near the red line.... but i don`t thrash the Sh*T out of an engine I just want it to last. i did go to 80 ish at one point and the speedo needle when it hit that speed went right up and off the clock....... don't Know why but as soon as it came down it was fine again..dam gremlins.

but i am glad that it runs well Now and Not got the Rev flat spot No more...... as they say keep at it till you get it right and i do that to all my bikes....... some people say I over polish them too and they don`t look right...but as I say each to their own. I just like to look at a bike see if it`s looked after or Not if you know what I mean.