danstzr125belgarda Posted June 15, 2012 Share Posted June 15, 2012 Hi all, My TZR 125 R belgarda is giving me a massive headache, it won't run right and keeps dying on me (I'm currently sitting on the side of the road as I write this) when I first got her she would run but wasn't very happy about hitting the valve and eventually gave up the ghost on me which turned out to just be reeds, however I then felt that as I had stripped the top end off I would replace the piston rings little end gaskets etc along with the reeds. After the rebuild she started up fine but wouldn't do more than 45mph which it turns out was due to some bad info about setting up the power valve after spining that round 180 she was almost riding perfect except was a bit stuttery about between 6 an 7 grand as its only 250 miles into runnin in I wasn't willing to allow it to hit the valve properly but wanted to make sure it was working so just touched the valve and was fine stopped at my bosses house on the way to work, I then left there and promptly broke down 15mins later. It behaved the same way as it did last time it died so I suspect it to be the reeds again, does anyone have explicit knowledge about these bikes or know where I can get a manual that will include things like clearances for reed valves etc. So I can check everything is as it should be? The list of mechanical/electrical parts far fitted so far: Reg rec Power valve servo Reed valves Piston & rings Little end Head, barrel, exhaust and inlet gaskets Starter relay New spark plug Brake seals front and rear Please help me someone, this is a rare bike and just want her to run properly for more than a few miles Link to comment Share on other sites More sharing options...
Moderator Cynic Posted June 15, 2012 Moderator Share Posted June 15, 2012 What was actually wrong with the reeds, with all the 2 strokes i have had its something i have never had issue with. They just work. The stutter just at the valve is intreging me more? Link to comment Share on other sites More sharing options...
AndyDtr08 Posted June 15, 2012 Share Posted June 15, 2012 A friend has the same bike. I will ask him what manuals he has as he may have downloaded some. I have a parts catalogue for the 4HW which is very similar I beleive? There isnt a haynes manual for the bike unfortunately but you may be able to get a service manual online. Let me know if you want a parts manual. The reed block will be the same as the D125R so you could take the clearances from that i expect. Link to comment Share on other sites More sharing options...
danstzr125belgarda Posted June 15, 2012 Author Share Posted June 15, 2012 "What was actually wrong with the reeds, with all the 2 strokes i have had its something i have never had issue with. They just work. The stutter just at the valve is intreging me more?" 1 of the reeds had broken a corner off meaning fuel was always allowed to pass through and none of them sprang back closed particularly well. I believe the stutter is due to the reg rec again as I bought a 2nd hand 1 from ebay and although it was working for the first week as I tested to see what reading I got from the battery when running it seems to ave given up aswell so I have a brand new pattern 1 on its way Link to comment Share on other sites More sharing options...
danstzr125belgarda Posted June 15, 2012 Author Share Posted June 15, 2012 " A friend has the same bike. I will ask him what manuals he has as he may have downloaded some. I have a parts catalogue for the 4HW which is very similar I beleive? There isnt a haynes manual for the bike unfortunately but you may be able to get a service manual online. Let me know if you want a parts manual. The reed block will be the same as the D125R so you could take the clearances from that i expect. " As far as I'm aware there are the 4DL and 4HW belgardas (I may be wrong) this came with the 250 fairings and the 4hw had the boot under the seat and battery mounted on the side instead of under the seat. I'm not 100 percent on my info as its all been dribs an drabs from different people, websites, and bike shops. A full service manual would be what I was after but out of interest what how detailed is the cataloge does it have every part no mater how small? Haynes include the TZR125R in the DTR manual but is not any where near detailed enough to meet my needs as it only covers the basics of the engine it doesn't go into all of the differences between the 2 bikes, I can try the clearances for the reeds from there though. Link to comment Share on other sites More sharing options...
AndyDtr08 Posted June 16, 2012 Share Posted June 16, 2012 Yes Haynes covered the "TZR" but it doesnt cover these models at all. There were 2 different types of 4DL. One has a banana swing arm and the other is straight. Yeah they had 125cc engines put in 250 frames. Pm me your email and I can send you through the parts manual I have. Link to comment Share on other sites More sharing options...
danstzr125belgarda Posted June 16, 2012 Author Share Posted June 16, 2012 Have made a step in the right direction, she is alive an kicking and is also perfectly happy in the bottom end of the revs but stutters just before hitting the valve and the engine dies if i try to push past 9000 revs drop to about 6000 and then comes back to life again. i have tested the voltage at the battery when its running and am getting a reading varying between 13.5 and occasionally 14.5 but is more 13.5 could this be my problem? the new reg rec is due tues/wed which hopefully should produce a constant reading of 14.5 Link to comment Share on other sites More sharing options...
danstzr125belgarda Posted June 16, 2012 Author Share Posted June 16, 2012 it was the spark plug by the way Link to comment Share on other sites More sharing options...
Moderator Cynic Posted June 16, 2012 Moderator Share Posted June 16, 2012 Job number one on any 2 stroke problem, change the plug, and more than often change it again. Link to comment Share on other sites More sharing options...
Recommended Posts