Specials

Classic Trial - - CONTENTS - Ar­ti­cle: Toon Van De Vliet

Made in Hol­land

What started as a hobby nearly turned into a busi­ness for Dutch­man Hans van Mar­wijk. He put to­gether many B40 based BSA trial ma­chines and also a Match­less, an AJS and fan­tas­tic, newly built, Royal En­field ma­chines with engines from In­dia. As a friend of mine, he also built me two im­mac­u­late Bul­taco en­gined Sher­pas. One of them I have named the ‘Bul­toonco’ be­cause my Chris­tian name is Toon. The name Toon comes from An­thony, and I have to ex­plain to the in­ter­ested tri­als peo­ple why I did that. Dur­ing the build­ing of the ma­chine the name Bul­taco had just made a come­back but Ig­na­cio Bulto, the owner of the Bul­taco name and thumbs-up logo, was not happy. So the new founders of that tri­als ma­chine had to change the name to Sherco. To avoid any prob­lems, by us­ing the name Bul­taco, I changed it into ‘Bul­toonco’. I’m sure Bulto doesn’t have a prob­lem with the hand­made Hans van Mar­wijk built frame with the Bul­taco en­gine. True or not true? A good Dutch say­ing is ‘Don’t spoil a good story by telling the truth’!.

Bul­toonco

In this Bul­toonco, the en­gine is based on the Bul­taco 199A type with a five-speed gear­box, stan­dard ig­ni­tion us­ing con­tact breaker points and a stan­dard 60mm stroke but with an 85mm bore, giv­ing around 340 cu­bic cylin­der ca­pac­ity I guess. A lit­tle overnight tun­ing to the cylin­der has been car­ried out by my­self, and the clutch plates are changed for Honda ones. The se­cret of this ma­chine is the ex­cel­lent han­dling due to that superb frame lay­out fab­ri­cated out of high­stan­dard Reynolds tub­ing and then chrome plated, with out­stand­ing po­si­tion­ing of the en­gine.

This ma­chine has han­dling like a Gas Gas and is com­pletely dif­fer­ent from a gen­uine Bul­taco Sherpa. It’s not much lighter but so well bal­anced that I al­most feel guilty rid­ing it. Maybe also a good rea­son for the name ‘Bul­toonco’ be­cause it feels miles away from a stan­dard Bul­taco.

In this Bul­toonco the en­gine is based on the Bul­taco 199A type with five-speed gear­box, stan­dard ig­ni­tion us­ing con­tact breaker points and a stan­dard 60mm stroke but with an 85mm bore, giv­ing around 340cc cylin­der ca­pac­ity I guess.

A lit­tle overnight tun­ing to the cylin­der was car­ried out by my­self, and the clutch plates were changed for Honda ones.

The se­cret of this ma­chine is the ex­cel­lent han­dling be­cause of that superb frame lay­out, fab­ri­cated out of high stan­dard Reynolds tub­ing and then chrome plated, with out­stand­ing po­si­tion­ing of the en­gine.

‘Bul­toonco’ was a nick­name given to me by fel­low Bul­taco mo­tocross rider Leo Brans, a for­mer GP con­tender also on Bul­ta­cos in the sev­en­ties, and we did a lot of work to­gether on Twin Air fil­ters.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.