Rangi da Munta.

**F5 Dave** · 23rd March 2009, 11:44

Ahh.

So remember when I said I wouldn't even run it with the std mainjet in?
I meant it.

Jets are numbered to meter fuel in relation to the air. Removing airbox will require a bigger jet than std.

For example Ray had just taken the airbox off his (by chance of example) MB100 & turned up to Tauramanui. Didn't run very well & he didn't bring his airbox. His bike was running well lean. In the absence of any jets that size all we could do was run the smallest drillbit I had though the jet.

Ran like a charm, next time I saw him he brought me that loading ramp I have in the back of my van (he made all the ramp stuff for the Lynx area).

But he really should have gone up in jet size until it was too rich & back a size.

**Trudes** · 23rd March 2009, 12:25

I know Nigel did drill it out a bit as he wasn't using an airbox either, but obviously not enough. So drill out the main jet a bit more and see how it goes you reckon? Thanks Dave.

**F5 Dave** · 23rd March 2009, 13:27

Well drilling the jet is a bit, . . . erm shall we say Rangi?
Better to trial a few proper numbered ones, surely Skunk has a selection?

**Trudes** · 23rd March 2009, 13:43

Yep Skunk has some, I'll take it round there sometime this week and we'll attack it!! Cheers.

**nudemetalz** · 23rd March 2009, 13:53

Yup, just do some full throttle plug-chop testing in Bellringer Crescent. Preferably in the evening. The neighbours won't mind

**Skunk** · 23rd March 2009, 17:26

Hey Dave, the jet is only slightly over 175. We drilled with the first jet drill I had that didn't fit. It shows no sign of leaness stationery - clean pick up even with snapping the throttle open. I suspect the primary side rather than the main to start with but I'll take any advise. We drilled it as I don't have any other jets... Somewhere I've got a 'how to tune two strokes' guide very similar to what you've told me. I just never done it from scratch.

**F5 Dave** · 24th March 2009, 11:46

The web is littered with jetting guides. I would have thought the std jet would have been tiny in the 75 range, but it's been a long time. Obviously the basics need to be sorted first, like you now have it so it isn't being starved by the line (or fuel filter) crimping, & the carb is no longer flooding & the float level isn't too low or too high & carb isn't on some crazy angle, & the various carb air ccts aren't blocked or carb vents for that matter, best go through & check all those can be blown through.

Then after that try running it up your street, nothing like a steep hill will throw up issues.

**Skunk** · 24th March 2009, 12:05

All the basics are OK - still to double check the primary. Static seems fine so we'll do the hill.
Got that Trudes?...

**F5 Dave** · 24th March 2009, 12:20

If it were a dirtbike I'd say check the float vents tubes aren't blocked. I assume you have taken out the emulsion tube to check for blockages, crumbs maybe you can't int those 'iddle carbs.

**Trudes** · 24th March 2009, 12:23

Sweet as.

**Trudes** · 14th April 2009, 17:55

Rangi has been turned into Super Rangi!!

So, Rangi went to the SkunkWorks bucket factory for some diagnostics to figure out his fueling issues and rolled out two weeks later a different bike!!!
Sketchy_Racer offered to do some tuning on him to make him run a bit nicer for nanna here and so we could put my larger carb on and get him running. What he's done I don't entirely understand, (maybe he might like to tell us, but maybe it's his secret

) all I know is that he is one sweet sweet little bucket now!

I was warned not to be too upset if he didn't run too well on Saturday as his tuning wasn't completely how Glen wanted it yet, so I had braced myself for not getting in much Rangi time for our Easter Bucket GP!

Jumped on at the Slipway on Saturday and took him out for a spin, just taking it quietly just in case and kind of waiting for something to happen.... nothing did, well nothing bad anyway. I think Glen could see what I thought when I pulled back into the pits with a large grin on my face! What a cool bucket!!!

Everyone took him for a ride, even Kendog "I hate 2 strokes" thought he was cool! We did the whole day including both points races (ok, I didn't win, in fact I think I came last in both, but I didn't care, I finished and my bucket is wicked!!) So happy camper here went home with a huge smile and very much looking forward to the next day at Kaitoke after we did some quick repairs of an engine bolt that had wriggled itself loose and adjusting the rear brake so it wasn't constantly dragging.

The next day we went out onto the track, Rangi's engine was still beaut, but I was having some issues with changing up gears. Came in, Skunk adjusted the gear linkage for me as we'd had it off the night before and it wasn't quite back in the right spot. Went out again for our first practice race, kept slipping gears, lined up for the race start, got off the line, into second gear, third.... no, can't get it into third, nope stuck in second, back to first ok, up to second... no. Shit! So pulled off the track and sat out the race waiting to roll back to the pits. Skunk, Kendog and Sketchy had a fiddle with him, but alas, not something that can be fixed today. So Rangi was parked up to look pretty in the sun for the day

Nevermind, shit happens, off to scab up a ride for the rest of the day. Back on to Andrew Adlam's trusty FXR for the rest of the day, I did try to not come last for him, and I did manage it on the last race because some people crashed, so the attrition card won for me again!!

All in all, had a good weekend! Thanks to Nudemetalz for organising the racing; Kendog for his patience, encouragement and for not passing me in really shitty places; Andrew Adlam for lending me his FXR again; Sully60 for walking the track with me, tips, encouragement and the offer of The Sled; Skunk for all your encouragement and hard work (I know I'm hard work); and Sketchy for all your knowledge and tireless hard work on Rangi!!!

Rangi will ride again!!!

Here's some pics courtesy of Skunk Control (thanks!!

)
Me and Rangi; Sketchy riding him how he should be riden; and Sully stunting.