there couple comments down about the oil breather i think is correct,, but hey for first ride its a win, any test ride where dont end up pushing the bike home is a win,,well done
Back in the 80’s we all ran around on 250’s on L plates😊 I had a mildly tuned X7 with Terry Beckett expansions and a mate had a Super Dream with a two into one which he claimed made it go so much faster it would beat my X7😉 Needless to say I left him inhaling a blue cloud of Bel Ray🤣 Great to see a Super Dream still going, enjoy! I’ve got an S reg X7 which I’ve been restoring for years and will hopefully finish it one day?
I bought one of these new in 1981 and ran it for over 6 years until I swapped it for a car. Never missed a beat. When it’s running right it should sound like a sewing machine and rev all the way to the red line. Your throttle response is poor and it sounds like it’s bogging badly. I agree with some of the comments: strip the carbs again and make absolutely sure they’re clean. I assume you checked the tank for debris, and that fuel lines are not clogged. Check timing and valve clearances. Check your HT leads and plugs. Good luck! It will be worth it!
I had the 250n superdream twin i polished it everyday i used to love washing it my best hobby was getting old bikes that not run for years my friends used to laugh at me and say what the hell have you bought that scrap they never laughed when they saw it all cleaned up and the chrome gleaming❤
Ryan, you are a star... I've been with you on this journey from almost day 1 and I am over the moon you've finally got Flint back on the road - congratulations, you deserve this success ! 👍
Thank you Tim, it was a real roller coaster of a journey, and I'm far further along than I could of hoped when I started. just the last few issues to get sorted.
Seems pretty smooth, I wondered though why the speedo didn't seem to be moving!😂Currently restoring a Honda CB125RS, might be on the road sometime (!) Can't beat the old school Hondas........!!🙂👍👍
Breather pipe should go into the air box on the left hand side and the oil collects on the small space in the airbox and the oil vapor keeps the filter oiled, although you do still have to keep oiling the air filter every 5-6K miles, flint starts well so maybe slight adjustment to the mixture to get it revving higher ?
@@paulgrep3193 thanks Paul, im going to take a good look on my airbox to see if there is a connection available for the breather. My bike has an unknown past and arrived in boxes, so its not impossible i have a 400 airbox.
@@RyansGarageUK There will be a connection as the airboxes are common to the 250/400.- usually blanked off on the 250's with a rubber cap and spring clip. Inside the airbox you will also have an internal box that on the Swiss 400's ONLY had a mesh filter and catch sump- UK 400's the space is empty.....
The breather from the rocker cover goes straight towards the back, along the right hand side of the frame then down a channel in the right side of the air box, behind the starter solenoid and out by the engine end of the swing arm along with the carb breathers. Brilliant videos Ryan. I’m restoring a 250 Superdream so your videos are invaluable 👍
This was my first bike in October 1979 bought brand new for $1550 aud. In Australia the CB250N was called the Super Hawk and came in Candy apple red and. Silver. I had the Red one as they go faster. All on all a good entry bike. I sold it and bought a 2 stroke GT550 Suzuki which made the Honda quite pedestrian.
I repaired a friend's immaculate CB250N Deluxe (X Reg), back in the early 1990's and rode it 8 miles to an MOT station (it passed with flying colours). They are supposed to rev to 10,000 RPM, though the meagre performance (when compared to the Yamaha XS250 and Kawasaki Z250 Scorpion) quite normal for the CB250N. In fact, the bike was often slated in the motorcycling press and in the 1980's biker lore for it's poor power to weight ratio (it was the heaviest 250cc bike ever produced). Honda must have done something right, however, as t was Britain's top selling 250cc bike in 1979, with the slightly less slow (and considerably cheaper) CZ250 being in second place in the 1979 UK 250cc bike sales figures..
Hi, Thanks for your input. These bikes did certainly sell in big numbers, but they are obviously not quick. Although, I do find the engine surprisingly smooth, even when mine isn't running perfectly.
Ryan well done you put a lot of time and effort into this bike and it is great to see it being ridden. My advice would be to balance the carbs, recheck the oil level and make sure there is not to much in it. Drop the level a bit if there is too much. Ride the bike for a while to let everything bed in and see if the issues rectify themselves, you may be pleasantly surprised. All the best John👍🇬🇧
If you think that's a disaster, you should have followed me on my first shakedown. It was more of a shake off! Keep the faith and keep on filming 👌 Carburettors can be an absolute pain in the bottom and wallet, as I know from my ongoing project. All the best David.
Great to see you out on it Ryan. Didn’t seem correct when twisting the accelerator but I have no idea how to fix that, also noticed your headlamp was pointing upwards slightly so may need adjustment when you have fixed the other problems first. Look it’s great that you have achieved all this and I am in ore with what you have achieved Ryan well done. You will succeed and get it out and about and always look forward to your videos, many thanks 👍😊
Thanks Jim bo, suspecting the carbs still need setting correctly, and I hadn't used or aligned the headlight yet, but I'll be sure it's not too high before it is used.
It sounds like your oil level is to high when the engine gets hot it expands the oil I had that bike for years and they are brilliant another thing you should do is take it out and run it full throttle with chock fully open for a few seconds then close it it will blast the carburetors clean I know them super dreams inside out also it sounds like the cam chain is a little tight
Great videos. I had a Superdream 250N in the late 70's, loved it. Have this week just bought another. A simple classic bike, sweet to ride, what more can you ask for? Thanks for your work.
How wonderful to see 'Flint' on the road Ryan! I bet you didn't want to finish the ride! I don't know about you, but I've always felt that gear no. 1 is a bit too highly geared. You get used to it though - just a few more revs, slow-ish with the clutch and off you're off. I wonder what's holding the performance back though. Mmmm...
The carbs probably just need a good clean out. I know you think you've already done this but it only tales the smallest speck of crud to keep the float needle valve open and for it to flood and run badly!...
Sorry if this is not going to be very helpful, but ... from my memory of riding these, that 250N is not sounding like I remember it. There is nothing of that Honda ting-ting-ting at at high end. And low down, it sounds painfully agricultural - as if something is going to go bang at any moment. But I have no idea how to fix it! (I said I was not going to be very helpful (embarrassed face)). Really looking forward to you getting it going again properly though.
Sorry if I've missed an episode on this, but I couldn't help notice the cool-down ticking seemed a little excessive, relative to my memory of this engine. If I am right, then it would be worth checking the condition of your spark plugs, to gauge the air/fuel mixture. Or do one of those colortune jobs.
Love the interesting camera angles! Lacking revs/power... Too rich? dirt in float valve stopping it closing (been there!) or float height. Also check the auto advance unit is not sticking, check ignition timing. Should only be getting vapour from the breather, too much crankcase pressure? some bikes have a breather valve (not sure if the cb250 does), oil level too high?
Sorry for the awful camera work.. I'm going to check oil levels etc and try a few more times before I draw any conclusions. I may be crankcase pressure, but I did fit new piston rings so they should be okay.
Recheck the oil level, just in case it’s over full. Yea noticed the speedo cable was missing when you put in the split pin on the front axle. I wouldn’t say it was a disaster. First runs after a rebuild will often throw up unexpected or over looked bits. Getting close to having a usable bike now.
Proficiat Ryan, eindelijk loopt de motor. Bij de eerste poging liep hij op 1 cilinder zo te horen. Bij de tweede poging liep hij op beide cilinders, maar kijk nu naar de bouchies. Wat is de kleur links en rechts? Is deze goed? En beide gelijk van kleur? En ik weet niet of je een compressiemeter hebt, maar kijk of er niet teveel verschil zit tussen de linker en rechter cilinder. Succes!
Hi Gary, you are correct. When i looked into why the speedo didn't work, i found i had completely missed the cable. Strangely it worked much better when installed. 🫣
Sorry Matthew, Guilty as charged. Honestly had been putting my gloves on and off all day trying to sort it, and then it ran I just went for it and forgot.
I remember when my mate crashed his bike not Wearing gloves,his left hand looked like mince meat,never the same again,opps sorry safety police men......
