Tuesday, June 24, 2025

Bultraco Metralla in pieces


 Todays project I wish I had a better tank!

6 comments:

MARSHALL OVERCLOTH said...

you could git this here tank to put on it-https://clarkemfg.com/catalog/universal/universal-tank-5/
comes in the different colors except for Aqua. then next you install tall motocross bars like from the Bultaco model that were the two bar sections. leave off the street parts. throw the motor in the dumpster around back. install a china 250 eBays motor and...

Anonymous said...

Oh mama, Mr G, isn't that nice. I hope it comes together for you without a single major heartbreak.

Anonymous said...

The Metralla was the road racer, wasn't it? The only Bultaco I ever had was a 370 Pursang... which was interesting! D.

Mister G said...

The Metralla was the road bike made from 1966-1974. There was a road racing kit available.

Anonymous said...

The 200cc Metralla was made from about 1962 to 1965. I bought a used one (private purchase) in about 1969. Maybe a 1965 model, I don't remember for sure. The 250cc came out in 1966 with "manual oil injection".
I had a love / hate relationship with mine.
Looking back, I wish I had more available cash and had gone to the dealer (Allen Cycles in Downers Grove, IL, USA) with a list of things that weren't right, and paid them to fix everything properly, but I was going to college and only working part time.
I loved the simplicity (NO BATTERY!) and lightness of the Bultaco, but it had problems.
The hinged aluminum gas cap was worn out and would pop open, and the dealer couldn't get the part. No side stand, and the center stand was too short so the bike wobbled, and the wind blew it over several times. Sometimes it would kick back (OW!) while trying to start (I now believe the previous owner set the spark too far in advance). No oil injection, etc., etc..
What finally made me sell it was the rear wheel seemed cursed. It went flat while parked at least three times, yet I never found a leak in the inner tube. Knowing what I know now, I bet the pervious owner had put tube sealant goo in the inner tube. When parked for a while, the sealant would settle and sometimes let air out. When I removed the wheel, tire and tube, the sealant would seal the leak. If true, I could have removed the "curse" by simply replacing the tube instead of trying to patch it.
I hope your Bultaco project goes smoothly.

I wish more motorcycles had magnetos so they could be started with dead batteries.

Jack from Illinois

Mister G said...

They were not the most reliable from the factory and the lighting was rather anemic... Having said that, I have three of the model 23s and the previous owner of one told me he and his brother had ridden from Toronto to a film festival in Iowa (of all places) on two of them back in the day. He said it was a great trip even though it was October.