I finally got around to firing up my 3C this week after 1 years work.
It being Oscars week, I got my wife to film the momentous occasion.
Well, you won't see it.
The bike started with a little difficulty and then ran, but popped and banged. I didn't insist and thought "carbs" since I'd had a lot of trouble getting them sorted. I didn't run it long. When I had a look around the bike, I noticed some dust under the Ignitech ignition board. As Red recommended in his instructions, I hadn't mounted the alternator, just in case.
It turns out that the dust was due to the starter freewheel nut rubbing on the back of the ignition board. I'd noticed of course when mounting it that there wasn't much room but turning the engine over by hand didn't reveal any contact.
I at first thought that maybe the nut wasn't tight but it was. I thought that maybe that nut, a new one, was too long and thought about taking it out and turning it down.
Before doing anything drastic, I mailed Keith Nairn and Red who had the answer.
The early Bosch pickup plate is thicker than the later ones, by 2mm. Because of this, the recess in the starter clutch cover is deeper by 2mm. Bikes concerned, if the cover is original have numbers below about 2500 or says Keith, those with drilled round air holes in the cover, more or less.
The solution, which Red has covered, is a thicker mounting, by 2mm, for the Ignitech pickup plate.
On the subject of small variations that are good to know, I'd bought a side stand kit from Jota Joe and it doesn't fit my frame, n°2098. The mounting plate for the stand is fixed between an extended rear lower left engine bolt and the rider foot rest bolt. That foot rest bolt is about 4mm higher on my bike than what's provided on Joe's kit. Joe has sold hundreds, the plates are CNC machined so frame variation it looks like.
Paul
It being Oscars week, I got my wife to film the momentous occasion.
Well, you won't see it.
The bike started with a little difficulty and then ran, but popped and banged. I didn't insist and thought "carbs" since I'd had a lot of trouble getting them sorted. I didn't run it long. When I had a look around the bike, I noticed some dust under the Ignitech ignition board. As Red recommended in his instructions, I hadn't mounted the alternator, just in case.
It turns out that the dust was due to the starter freewheel nut rubbing on the back of the ignition board. I'd noticed of course when mounting it that there wasn't much room but turning the engine over by hand didn't reveal any contact.
I at first thought that maybe the nut wasn't tight but it was. I thought that maybe that nut, a new one, was too long and thought about taking it out and turning it down.
Before doing anything drastic, I mailed Keith Nairn and Red who had the answer.
The early Bosch pickup plate is thicker than the later ones, by 2mm. Because of this, the recess in the starter clutch cover is deeper by 2mm. Bikes concerned, if the cover is original have numbers below about 2500 or says Keith, those with drilled round air holes in the cover, more or less.
The solution, which Red has covered, is a thicker mounting, by 2mm, for the Ignitech pickup plate.
On the subject of small variations that are good to know, I'd bought a side stand kit from Jota Joe and it doesn't fit my frame, n°2098. The mounting plate for the stand is fixed between an extended rear lower left engine bolt and the rider foot rest bolt. That foot rest bolt is about 4mm higher on my bike than what's provided on Joe's kit. Joe has sold hundreds, the plates are CNC machined so frame variation it looks like.
Paul
