Messages

61

Honda / Re: XL185 ignition check

« on: September 05, 2013, 10:28:03 PM »

 Thanks very much
I'll have to  look inside to see which type of coil I have and then check my general spares

62

Honda / Re: XL185 ignition check

« on: September 05, 2013, 05:08:38 PM »

 Thanks very much for that. I haven't looked closely but can one substitute the lighting coil for the charge coil in order to power the ignition?
I'm afraid the wiring has been totally butchered.

63

Honda / XL185 ignition check

« on: September 05, 2013, 08:08:21 AM »

I've got a XL185 in an Ossa frame
The ignition has packed
I've used a multimeter and to the best of my meagre ability I think all the ignition components are ok, which leaves the charging coil. Can I just check using a battery to charge the ignition and if so what voltage?

64

Yamaha / Re: XT/TT/SR500 Differences

« on: August 25, 2013, 01:14:51 AM »

 As far as I've read the later heavy SR flywheel will fit into the early cases with a touch of grinding. Some people prefer the later crank in mud [ie UK] The later valve will fit straight into a recut inlet seat
 On the later bikes the clutch is stronger, the oil pump is a five bolt fitment and the gear change mech runs on a bearing
 In the real world none of this seems to matter much. The only thing that seems to be a no no is using the SR frame offroad, it's supposed to be weak.
 The TT is supposed to have a 34 inlet stub. The XT and SR are said to be 32 and restrictive
One mod is to use the 36mm XS650 inlet stub.
The TT doesn't have a tacho so there's more meat round the intake, which is only relevant if you really know what you're doing [as opposed to just thinking that you do]. From what I've read I'd keep well clear.
I've no idea what my 76 TT engine has, it won a lot of races in more capable hands than mine, so I'll leave it alone. I have fine tuned the 38mm carb and sorted the exhaust. Total length is supposed to be around 36".

65

Kawasaki / Re: KLX 250 head Gaskets

« on: August 21, 2013, 05:13:12 PM »

 I've found that as long as the rubber head gaskets aren't flattened they are just fine to re use, you just have to inspect them closely. Just as well as the timing chain surround is expensive

66

Honda / Re: Pre 75 XL250

« on: August 19, 2013, 08:32:55 PM »

 What's the going price for a sorted stripped bike?

67

eBay Finds / Re: Cheney Triumph on eBay

« on: July 10, 2013, 05:38:02 PM »

 If you're going to ask that much money you'd think they'd fix the engine

68

Kawasaki / Re: 1980 KLX 450

« on: May 16, 2013, 05:57:34 PM »

 Back in the day they reckoned you needed 20lbs of air pressure to help the weedy springs. You can cut the springs down a bit before it gets coil bound but it's still a tad soft

69

Tech Talk / Re: Sun Damaged Plastic

« on: April 24, 2013, 05:16:08 AM »

 What's a sun?

70

Yamaha / Re: TT500 exhaust length

« on: April 22, 2013, 08:57:03 PM »

 Turns out the Mann's used a 3" unit, at least some did. MX kindly sent me a Trapp spec sheet. It was for a 4" unit to go on an XT.  It gave pipe lengths for various models to be used with Trapps. It also stated that Trapps needed a shorter pipe than other "silencers". 32" was the XT length for peak revs. My pipe is 52"! Pulls well out of slow corners.....
 

71

Yamaha / Re: TT500 exhaust length

« on: April 19, 2013, 06:39:52 AM »

MX
I've put the call out for an old Supertrapp, but given that I live in a far away land, all be it one now without the Witch; I expect I'll have to get one made. Daz reckons that he can happily build one with the info you emailed, so thanks again for that.

72

Wanted / Old type supertrapp

« on: April 18, 2013, 07:09:52 PM »

 I need a single taper early supertrapp; 4" disc type, single bolt end plate, steel body, 1 and 1/2 to 1 and 3/4 exhaust. Even if it's rusting away  I can at least get it copied. Anything considered.

73

Yamaha / Re: TT500 exhaust length

« on: April 18, 2013, 10:14:35 AM »

 Thanks MX It's a 36 or 38. Dick Mann favoured the 38

74

Yamaha / Re: TT500 exhaust length

« on: April 18, 2013, 01:24:28 AM »

 I want the bike original, thus supertrapp Anyway I've never had bolts fall off. We have a special substance in the UK , it's called "rust". It's unsurpassed as a fixing agent.

75

Yamaha / Re: TT500 exhaust length

« on: April 17, 2013, 06:47:47 PM »

 Thanks very much!
I had a memory of a Dick Mann quote of 37".
 I've got another problem now  I had an old 1983ish single bolt Supertrapp with 4" discs. It rusted away and Daz copied it. I had planned to swap it from my DR to the Mann. However Daz noticed that it was longer in the body and wondered if the shorter possibly earlier 4" disc bodies also had internal baffles, or were they just a cone with  discs. He also wondered if the baffles robbed power. I've searched the Supertrapp website but not gleaned anything.
 Anyone enlighten us?