So which way would you go ??
Personally, I'd wait, and look around, save, then pay the price and buy a complete race motor (or hot road motor), and bolt it in. Preferably with carbs, less set-up hassle. But thats not everyone's cup of tea, and will be pretty lumpy... However, I actually enjoy commuting round lndon on the skorp, with a big lumpy hi CR piston, lumpy cam, noisy carbs etc.
Phone martin sweet at slipstream tuning. He often has good stuff on the bench. Its not cheap, but a standarrd motor would be..., I dunno... £250? More? and thats used, maybe thrashed, and standard.
The cost of parts sometimes just doesn't justify a rebuild...
ie. to do a valve on the SRX cost
25 for the valve
25 for the head gasket!!!!
About 20 for all the valve seals
About 10 for the 2 exhaust rings
plus vat
plus postage... not much off 100 notes. For a 25 quid valve!!!
But its a good motor. When my first SRX motor gave out, I stripped the top end, and peered in at the knackered 5th gear. I kept it, as it could still be rebuilt, but wasn't going to pay daft money in parts for what is only a standard motor. I ended up buying a complete 400 motor with carbs, plugged that in and used the bike for another 2 years.
Re. the skorp, I have Slipstream receipts for 1300 quid. Daft money, not spent by me. Thats built up from scratch, and repairing all the damage due to a sheared crankpin. And thats still only a 660, plenty of room for improving things with a big piston and flatslide carbs. So NO WAY would I sell the bike with the motor. The thing is so ugly, I'd get about 500 quid for the whole thing (I paid 650).
But you must ask yourself if you need more power. Otherwise the money is wasted.
(then again, I hardly need it for london, but it makes me feel good, so maybe disregard the last comment!)
Also (this is always my dilemma), can you not renew the bearings etc when you're in there? Will you put the standard cam back in? Why not flow the head while its off....
And then can you live with the fairly crude standard chassis, with your "bells and whistles" motor??! Is an extra 10 horses worth all that cash??
And at the end of it, you've spent a *fortune* on a bike, which is still only an MZ (to most folks eyes, not mine!), and is still only worth 800 quid, and puts out 50 horses instead of 40-odd. A money pit, but we like that in this club...!!
My advice is get a cheap standard motor and get your use from the bike (ie reduce your £s spend per mile ridden). But thats probably not what I would do...!!!
The choice.... (as they say on telly).... IS YOURS!!!
Cheers, let us know!
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