Help zzr250 one cylinder when cold

Nice, thanks Danno

 

I have about 8 sets of carbs to sort now so am very interested in a home made method of ultrasonic cleaning. I'm gong to look it up and report back.

 

They're cheap on eBay, it's what I use.

 

Yeah, I got my ultrasonic cleaner from eBay too. So much more useful than useless carb-spray. When I got bike that was to become my race-bike, it had sat around in guy's garage for a year. Took carbs apart and found this:

Figured I'd just spray some carb-cleaner on it and be riding in 30-minutes. >Pffftt< Hah!!! Dried petrol crud just laughed at me as carb-cleaner rolled off clear as day having dissolved nothing.

Just getting enough of that plastic off so I can reach jets took hours of careful scrubbing with brass brush. Once jets were removed, that crud was on walls of fuel-circuits all way to carb-venturi.

Overall, it took over 50-hrs of scrubbing, ultrasonic soaking and micro soda-blasting to get those carbs back to factory-fresh clean.

Here's some scrub-brushes - Amazon

 

DannoXYZ - I followed your instructions to the letter and the bike runs like a champ.
I now have a GPX250 that I don't need ;-)

Thanks for your help in this, I learned a valuable lesson.

Clean the carbs properly the first time.

To that end I have purchased an industrial 10l ultrasonic cleaner and will be concentrating on all my carbs from here on in.

 

you're welcome!

Good job on carb-cleaning!
it's always feels awesome when you revive bike!

 

Sorry, didn't see that emoji well on my phone. Meant to give you thumbs-up for job well done!!!

 

yeah Its great, I hate to see these bikes go to breaking when they should be on the road.

I have an MC19, a zxr250, two TU250, a 750 Zephyr, a dr 500, an sp400 and a vs750 to go through now. All are orphans that i'm trying to save.

 

yeah, they're such fun bikes, hate to see them go to breakers. A lot of GPX/EX250s get retired from my racing club. But they need quite a lot of work to convert back to street bikes. So many of them are broken for parts.

I bought one in boxes and put it back together in weekend. Original tank was punctured by wrong fairing bolts and was too rusty. So I found good one online to complete package. Might paint it this weekend along with my race bike.

 

Nice work, i'm going to need body work if you have any spare?

 

I do have some extra bodywork. Have everything except front fender, and upper-fairing needs repair. Might be costly to send from San Francisco though. DM me your address and I'll get quotes.

 

I, too, didn't like the idea of parting out bikes, but to put one back on the road you often need another to offer up their parts. The thing that took me a long time to realise was that it was the good bikes that get parted out and the sad cases that get restored. Seemed back-to-front

 

Yeah, it's not 1-for-1 though. One parted bike can help save many others.