Things were kept secret back then, I remember seeing the bike at Broadford in 1984 I had just raced the B&C grade support race and was on my way to my car. The team transporter ( a bread van) was parked just near the entry to the pitts and start appron. The pitts were off limits to vehicles and only bikes, riders, mechanics and gear were allowed into the pitt propper!!
the bike had just been washed after practice and the mechanics had it stripped down to the main frame and engine only. The shock and front end were in the van being re-valved!! A big effort in those days shows the committment that HRC had back then! the van had wheels, shocks fork assemblies on the walls. I guess history shows that it paid-off.
The bike had a few mods over production bikes such as
Factory spec porting (using production castings, still on bike! )
Mugen gears with larger dogs! ( not in bike now but I still have them!),
off-set tripple trees (0.5deg, still fitted!)
factory hand made HRC pipe and muffler (I wish I knew where these have gone)
MUGEN kitted cartridge forks (as fitted to it now!) or the factory HRC "works" forks
HRC works shock or HRCV kitted std shock (still on bike)
other changes were at the riders request and local modifications.
Horse power was aprox 61 for the production bike
and the HRC ones were 67 or more!!
At CD4 last year Magoo bailed up Rosko (Leiskies mechanic at the time) and said come and have a gander at this it's suppossed to be "Jeffro's"
He walked up to it, squatted down on the LHS, projected his boney finger in at the reed block on the barrel, looked back at Magoo and simply went "YEP" grinned and went on his way!!
(the barrel has the markings JL.98EX HRCV)
SO THERE YA GO