Thumper Club Forum
Technical => Bike Problems/Questions => Topic started by: Frog on August 25, 2012, 03:07:52 PM
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Hi Everyone,
Took the carb of the bike today - it's never run quite as well as I thought it should and I had also fitted a freer flowing air filter and lightly drilled the exhaust - so wanted to increase the main jet size.
Good news is I found the best thing possible when taking the carb off of a 'performing not quite as well as it should SLR650' ...................... a restrictor washer fitted in the inlet manifold - Well there's ya problem...... ::).
Person I bought it from never mentioned it had been restricted and no paperwork in amongst the load of paperwork I got with.
Wonder how many sellers have sold it because it was not going as well as it should?
Question is - underneath the carb screwed in to the carb body (not the float bowl) is a brass fitting with a two wire electrical connection - anyone know what it is - looks as if it could be either a temp sender or maybe some sort of de-icer ???
Peeing with rain now but can not wait to try it out and see what it's like now ;D
Cheers
Frog
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CONGRATULATIONS! You've found the tracker!!! Big Brother is no longer watching you!!!!
...........Sorry, I don't know what came over me there.....
It would appear that it's a heater!
http://www.oemmotorparts.com/oem5.asp?M=Honda&T=SLR650&Y=1997&L=HO-SLR650V&O=CARBURETOR&F=HO-SLR650W-QO&L2=HO-FX650X-QO (http://www.oemmotorparts.com/oem5.asp?M=Honda&T=SLR650&Y=1997&L=HO-SLR650V&O=CARBURETOR&F=HO-SLR650W-QO&L2=HO-FX650X-QO) Check #12.
Big singles are particularly prone to carb icing in the winter ( And MZ's and GN250's.. >:() which can be 'interesting' the first time you experience it! Looks like winter holds no such fears for you!
(You might find you need to jet up a bit with the restrictor removed)
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Thanks SteveC - I thought that might be it!
Just had a bit of go on it and ............... ahhh...........that's better ;D
Still needs the carburation tidied up a little - slight stumble off of tick over. I have gone from a 165 to a 175 main - that may be too much (was looking for a 170 but could not get one). BUT it is not stalling at all now - where it fairly often would if you did not give it a blip before stopping - mixture screw 1.75 turns out.
My usual Commute will be a good test! Be interesting to see what happens to MPG too.
Frog