1988 bike
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It's definitely an 88 bike and engine, the barrel was consistent with engine and I did have a spare 3mb barrel but sourced like for like. Cant be sure con rod in engine is correct hence ordering correct one from fowlers. Could be whole crank differs from later bikes but don't know (yet) will check clearances as built, lucky to find a matching barrel to be honest
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@oldman Yeah this.
The manual specifies both the bore and stroke for the 3BN, I'm sure. I don't have it to hand.
It is so minor I doubt it'll be too much of a problem. Powervalves are not interchangeable though.
As said, doubling up on base gasket will do the trick. My worry is that the con rod is designed to stretch and compress, how close will it be at 12k RPM is anyones guess!
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@oldman Yeah this.
The manual specifies both the bore and stroke for the 3BN, I'm sure. I don't have it to hand.
It is so minor I doubt it'll be too much of a problem. Powervalves are not interchangeable though.
As said, doubling up on base gasket will do the trick. My worry is that the con rod is designed to stretch and compress, how close will it be at 12k RPM is anyones guess!
Hello Calum,What's the difference with the powervalve? Have measured and dry assembled and seems no different than one that came with bike, bar original has no grooves for seals and diamond style pulley shaft on end? Frame back but waiting for rack, grab rail, footrest hangers, suspension spring, etc.
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OK, thanks Calum. Replacement shock arrived and it's worse than the one I need to replace sadly. Lower ball joint corroded and worn and corrosion on plunger shaft has damaged the seal, very little damping going on. Will keep looking for a decent one.
look for a shock from a newer bike they have a white spring an fit on the 89 model
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Finally got a decent shock, waiting for powdercoating to return (have frame back though)so I can start rebuild. Seller of faulty shock not responded yet to return for refund, but covered via PayPal. Looked at getting a new indicator switch gear assembly and they are over £150. Put that on the wish list with everything else. Photos will be posted when there is something to show!
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Thought I had most of it but still missing plenty of bolts and fixings. Returned some of the plating, looked bad to be honest. On top of that rats have chewed the brake pipes on my van so that's being recovered on a flatbed truck tomorrow, revenge for shooting one. Started off with the abs light coming on, took to garage and sensor wire cut. Went to take it for repair and no brakes at all, other rear sensor wire chewed and brake fluid squirting out of chewed hose. How lucky am I
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Progress has been slow, mainly due to the weather this weekend. But important parts are coming back so I will try and press on (especially if it rains!) Attended vjmc show Sunday then a decent ride with both the red and white dt's, my blue 125mx and an rd350lc. I can still taste the 2 stroke oil being at the back (I was riding the 125mx). Covered approx 70 miles without mishaps, bit I so want a rd350, sounds brilliant.
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