Lardybloke

Hi, having trouble starting my YZF750, sometimes the starter engages but most times now it just spins out. Someone said it could be the sprag clutch? Is it going to be: A. Expensive B. Difficult C. DIY job or bike shop Please help. bl**dy thing stalled at the lights this morning and wouldn't catch, v annoying when you've just filtered past everyone to get to the front. It's a 1994 standard R model, 28K on the clock. Cheers

1984 on an old AP50 fitted with a 65 big bore kit and ported too. Thing was I didn't know it was running really rich, so when the fuel ran out, ie, onto reserve the engine would lean off and rev itself silly. Sat at a crossroads one day and it started to rev out, what did I do? Reached down for the ignition switch to knock it off in a fit of panic. Thing is, the ignition key on those is in the left hand side side panel........ So, taking my hand off the clutch, with the engine screaming, at a crosroads, in first.......... Wheelied, one handed across the road between two cars. Lucky to be alive methinks.

The YZF subframe is welded on so you can't swap them over without cutting and rewelding. The seat unit from 98 to 200 inclusive will fit the standard subframe without too much modification. Have a search on here or the net for FZR600 seat swaps as they use the same rear subframe and I know it's been done. Cheers

Fork bottoms look very similar to a YZF750, possible they would fit. If they do then that opens up the possibility of R1 calipers too.

From memory I think it is a 50mm link pipe, but any decent parts dealer should be able to look up the fitment for any given pipe manufacturer. Use a set of verniers or even a large pipe wrench to measure your original if you're buying privately.

Have you checked the sidestand switch? It'll cut the bike out if it thinks the stand is still down. Other than that check for fluid in the slave cylinder, they are very prone to leaking and as the fluid drips into the bellypan and gets burnt off by the exhaust you don't always see it.

Yeah, sorry Chris, only noticed that one after I'd pressed the button DOH!

Hi Chris, Take a tape measure to a breakers and start measuring up a YZF750 or an R6 for forks and swing arm.

Hi Ryan, I don't know if this is possible but it is worth investigating whether the YZF750R forks will fit without too much hassle, that'll give you upside downers and the option for R1 front brakes too. Also, the rear bodywork for the FZR600 is the same as the YZF and you can fit the R6 tail quite easily to that, in fact I saw an FZR with one fitted at Cadwell not long ago.

Hi, Been offered the chance of some spacers to lift the rear ride height of the standard shock, read somewhere in the Performance Bikes' set up guide that this would improve the handling. Has anyone done this and what height would you suggest adding? Cheers

Hi, Looking to move on from my '94 YZF750 onto something a: Newer, b: More powerful, and c: better for two up touring. The only thing is, I want something that will satisfy my weekend warrior aspirations and scratch as well as the YFZ. I'm not a nutter but I would like something that isn't going to be left behind. I reckon the old ThunderAce will fit the bill, anyone got any comments or experiences that would change my mind or confirm my choice? Cheers, Lard

Hi ya, I haven't done the swap but I run FZR600 bodywork on my YZF for track days. Fits better than the standard 750 panels

The early R6 and R1 seat units fit the YZF750 with minor mods so should work on the FZR600 as the bodywork is interchangeable between the two.

There's a guy on Ebay selling a YZF750 streetfighter unfinished project with a carbed R1 engine fitted. Only £400 so far which is a bargain even if you just take the engine out you would flog the rest off easily enough. I'd buy it myself if I had the cash. Even if you don't buy it, he's done the engine swap so he could offer help and advice on fitment.

Cheers for that, I'll start with those settings and see how it goes