Search found 19 matches

by Black111r
Wed Sep 21, 2011 7:11 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

Got the bike back together again today. I had glued the HT lead back into the HT coil (as it was v. loose - most likely due to hundreds of plug changes that I had made over the last couple of months). All the earth contacts points were cleaned and the HT lead cut back, recapped and the cap cable tie...
by Black111r
Wed Sep 21, 2011 9:05 am
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

rubber cap, no resistor

Will be cutting back the HT lead today an ensuring good clean cap/plug contact


Thanks to All


Chris
by Black111r
Tue Sep 20, 2011 5:15 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

Thanks

France Trial is out of stock for the HT Coil, lets hope my araldite fix does it.

Will contact Keith as required


Chris
by Black111r
Tue Sep 20, 2011 3:07 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

The bike has been stripped down and the first thing I notice is that the HT lead is slightly loose where it enters the Motoplat HT coil. Quite possibly it could have been worked loose with the constant plug changing that I have done. It is also pretty burnt where it has been in contact with the exha...
by Black111r
Mon Sep 19, 2011 9:33 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

Just read it!

Will investigate tomorrow

Thanks

Chris
by Black111r
Mon Sep 19, 2011 9:20 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

hi David Any thoughts on a quick source of condenser. Andrew mentions using an old VW one. I assume a 6v one? I can get the condenser, puller and new set of points from In-motion UK but this will be another week. If I can find a condenser locally then will happily borrow your puller. I can collect f...
by Black111r
Mon Sep 19, 2011 5:29 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

Hi Thanks for the feedback. Okay Tomorrows job is to have a look at the points/condenser. Can anyone here confirm whether the ossa 250mar mark 2 1975 has points (think they do) and what is the correct condenser that I need to use? Any local suppliers or does anybody have one Also I understand that t...
by Black111r
Mon Sep 19, 2011 4:24 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Re: Ossa 250mar Misfire

Following advice i took a deep breath and have put the old Amal back onto the bike to see if I can isolate the problem. Just to spite me the bike started first kick! However after running for 3-5 mins (as before) it started to misfire in exactly the same manner as before. I took the chance to inspec...
by Black111r
Mon Sep 19, 2011 2:14 pm
Forum: Twinshock & Classic Trials
Topic: Ossa 250mar Misfire
Replies: 18
Views: 6973

Ossa 250mar Misfire

Hi I am posting below a link to Trials Central Forum where i have been discussing a misfire problem with my Mikuni jetted Ossa http://www.trialscentral.com/forums/topic/37867-ossa-250-mar-miuni-jetting-question/page__gopid__280163#entry280163" onclick="window.open(this.href);return false; Does anybo...
by Black111r
Mon Aug 29, 2011 9:47 am
Forum: Twinshock & Classic Trials
Topic: Mikuni - KT250 carb wanted for Ossa 250MAR
Replies: 12
Views: 5458

Re: Mikuni - KT250 carb wanted for Ossa 250MAR

Thanks

I will drop Allens an email to see what they can propose.


Chris

Go to advanced search