Another SR250 café build -- questions

[bartbrn]

I, too, am starting a café bike based on my 1981 Yamaha SR250. I've seen some great work here, most recently SteveG's "A Tracker named Mexico."

I have a problem right off the bat that I'm sure many people who've built up an SR250 have come up against: as delivered in the late '70s - early '80s (in the US, anyway), the SR250 had a speedo with idiot lights, but no tach. I have the mechanical drive for the speedo, but I can't even find where a tachometer take-off drive might be on the engine.

I have a nice set of Yamaha (Nippon Denso) instruments that seem pretty contemporary to my SR250, which includes a mechanical tach, mechanical speedo, and idiot lights, but no idea where -- or IF -- I can run a mechanical tach drive cable from somewhere on the engine to the back of the tach.

Any ideas?

Thanks

Bart

 

[Helak]

Some later models like tge "Classic" have the taco drive from the left hand side top of the head. Older models like the early 80's ones the US got have the casting but it was never machined in.

I know the Classic was sold in Australia and Spain, and maybe the UK.

I'm away from home at the moment but I'll try to get some pics for you when I get back.

Edit- If you decided to chase one down. Make sure you get the cam for it too. The gears for the taco in the head run off a gear on the cam shaft.

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