jmp2204
Member
Is there any rule of thumb for adding washers and affecting rpm. ie 1 washer tip = 100rpm shift , 1 washer on the heel =100 rpm lower engage ......I know it may vary depending on spring ( i have a red h/c) .....i've thrown pm's at turk in regards to my tuning and appreciate his help, but don't want to over bug him.....plus others may gain from a thread ....
my sled 02 srx h/c bolt-0 washers in tip ,4 washers in heel ,red spring
52/44 helix green spring at 80 d = 8500 rpm
trying to get to 8200
engage =4500 want to keep it there for now ,but want to up it to 5000 for grass.....
any input is appreciated
my sled 02 srx h/c bolt-0 washers in tip ,4 washers in heel ,red spring
52/44 helix green spring at 80 d = 8500 rpm
trying to get to 8200
engage =4500 want to keep it there for now ,but want to up it to 5000 for grass.....
any input is appreciated
I think you need to start loading the tip first. Take off if you have anything in the middle.
5,4 gram in the heel will give you an engagement of about 4200 rpm which I find nice for trail riding. You will most likely have to grind the washers on the heel (unless you have drag and fly weights), so they won't touch the rollers when backshifting.
You might be a little steep on the finish angle with that helix, but I don't see 8200 rpm as a problem. Try a 4 gram bolt in the tip and two 1 gram washers (which are actually 0,8 gram). If this gives you too low revs, simply lighten by one washer. Warning, do not run with the 4 gram bolt only with no washers under it, it will rub against the spider. If you want to have 4 grams in heel use a 3,3 gram bolt and a 1 gram washer. Just feel free to ask again if you have more questions.
Oh by the way, to get the rpms up to 5000, simply use the 1,3 gram screw in the tip, that will bring you close I think.
5,4 gram in the heel will give you an engagement of about 4200 rpm which I find nice for trail riding. You will most likely have to grind the washers on the heel (unless you have drag and fly weights), so they won't touch the rollers when backshifting.
You might be a little steep on the finish angle with that helix, but I don't see 8200 rpm as a problem. Try a 4 gram bolt in the tip and two 1 gram washers (which are actually 0,8 gram). If this gives you too low revs, simply lighten by one washer. Warning, do not run with the 4 gram bolt only with no washers under it, it will rub against the spider. If you want to have 4 grams in heel use a 3,3 gram bolt and a 1 gram washer. Just feel free to ask again if you have more questions.
Oh by the way, to get the rpms up to 5000, simply use the 1,3 gram screw in the tip, that will bring you close I think.
jmp2204
Member
thanks
norwegian said:I think you need to start loading the tip first. Take off if you have anything in the middle.
5,4 gram in the heel will give you an engagement of about 4200 rpm which I find nice for trail riding. You will most likely have to grind the washers on the heel (unless you have drag and fly weights), so they won't touch the rollers when backshifting.
You might be a little steep on the finish angle with that helix, but I don't see 8200 rpm as a problem. Try a 4 gram bolt in the tip and two 1 gram washers (which are actually 0,8 gram). If this gives you too low revs, simply lighten by one washer. Warning, do not run with the 4 gram bolt only with no washers under it, it will rub against the spider. If you want to have 4 grams in heel use a 3,3 gram bolt and a 1 gram washer. Just feel free to ask again if you have more questions.
Oh by the way, to get the rpms up to 5000, simply use the 1,3 gram screw in the tip, that will bring you close I think.
UPS, 1,3 gram screw in the heel. Sorry for that.
jmp2204
Member
i knew what you ment lol ,Thanksnorwegian said:UPS, 1,3 gram screw in the heel. Sorry for that.
Hey did you try out that set up yet?
Also; what is your altitude, jetting and gearing?
And type of track; lug height, brand?
I have tuned the clickers for some time now, but I am over 2000 km from my sleds now, so I am exited to know that at least someone tunes heelclikers and even more exited to hear the results.
Also; what is your altitude, jetting and gearing?
And type of track; lug height, brand?
I have tuned the clickers for some time now, but I am over 2000 km from my sleds now, so I am exited to know that at least someone tunes heelclikers and even more exited to hear the results.
jmp2204
Member
no i havn't yet ,we are loosing our snow so i have to trailer an hour to get to snow...tomorrow i will try it
basically what i started out with was a bolt in the tip ,4 washers and bolt in the heel and i intially engaged at 4500 and shifted 8300 creeping to 8500(80 on the helix)first ride. over the course of the season it's been basically running to 8500 and staying there. I adjusted my belt deflection )last week and it would run up to 8500 then drop to 8100. (just put it back it was too high)
so what i just did was added a washer to the tip and cleaned eveything .I would like to know the wear clearance spec on the primary main shaft bushing (cap and moving sheave ) my cap bushing is fairly sloppy and i'm thinking that could hurt consistancy.....i'll post what it does.(pulling the clutch and tuning where i'm going won't be an option ...so iconditions hold up there another week and i need to improve the setup i'll do it...if not i'll be waiting for grass
soory forgot some of your Q's just above sea level ,,,,,all stock
my buddy has an 02 srx as well and running last week end i would hole shot him and hold him off by a lentgh or two til top end then he was creeping by .he is 100% stock(bender cold air kit, viper skid) i think i should be doing better with my clutching ?????conditons were not the best and it was +3-4 c but i was carrying my skis1'' -2'' ^ for 20-30 feet (and trenching the granular snow)
basically what i started out with was a bolt in the tip ,4 washers and bolt in the heel and i intially engaged at 4500 and shifted 8300 creeping to 8500(80 on the helix)first ride. over the course of the season it's been basically running to 8500 and staying there. I adjusted my belt deflection )last week and it would run up to 8500 then drop to 8100. (just put it back it was too high)
so what i just did was added a washer to the tip and cleaned eveything .I would like to know the wear clearance spec on the primary main shaft bushing (cap and moving sheave ) my cap bushing is fairly sloppy and i'm thinking that could hurt consistancy.....i'll post what it does.(pulling the clutch and tuning where i'm going won't be an option ...so iconditions hold up there another week and i need to improve the setup i'll do it...if not i'll be waiting for grass
soory forgot some of your Q's just above sea level ,,,,,all stock
my buddy has an 02 srx as well and running last week end i would hole shot him and hold him off by a lentgh or two til top end then he was creeping by .he is 100% stock(bender cold air kit, viper skid) i think i should be doing better with my clutching ?????conditons were not the best and it was +3-4 c but i was carrying my skis1'' -2'' ^ for 20-30 feet (and trenching the granular snow)
Last edited:
I have just one advice; you need to have your clutches in tip top shape when tuning. Replace everything that is worn and try again. Your sled has 15,6 MM rollers, DO check if the heel bolt and washers touch it or not. I recommend 15mm rollers for heelclickers but some others recommend other roller sizes. When replacing rollers, keep in mind that there is a coating on them that will be rubbed off in the first 50 km or so. Then throw the heelclickers in.
The reason why I prefer 15mm rollers is simple: There might be a clearance problem with the 14,5 mm rollers (will touch the spider or something). I have not seen any problems with the 15 mm rollers exept that you have to grind the washers on the heel to clear the rollers. With 15,6mm rollers I think they will interfere with the rollers no matter what you do.
But that is my opinion, others might have other opinions.
The reason why I prefer 15mm rollers is simple: There might be a clearance problem with the 14,5 mm rollers (will touch the spider or something). I have not seen any problems with the 15 mm rollers exept that you have to grind the washers on the heel to clear the rollers. With 15,6mm rollers I think they will interfere with the rollers no matter what you do.
But that is my opinion, others might have other opinions.
jmp2204
Member
i did actually file the heel washers (2)(the other 2 had no contact) and made sure on the bench the roller fit the weight profile on each one.The onl;y thing in question is the main shaft bushings ,all others are good to go....
I see. Not sure which bushigs you are referring to. Can you point them out from this picture?
http://216.37.204.206/wps/Yamaha_OEM/YamahaSnow.asp?Type=13&A=276&B=11
http://216.37.204.206/wps/Yamaha_OEM/YamahaSnow.asp?Type=13&A=276&B=11
jmp2204
Member
16 and 4 (in the primary section) sled s got 6000 miles on it
I see. When are you getting those replaced?
jmp2204
Member
summer , i need to get a grunt tool....we'll see what tomorrow does

staggs65
Moderator
summer , i need to get a grunt tool....we'll see what tomorrow does
__________________
if youre talking a puller you can try the hydraulic method with grease (or water) and a bolt, there was a post on it a few weeks back
jmp2204
Member
Well i got to the air strip in the morning - 3 c
i ran down it solo and it ran up to 115 (speedo) and i ran out of room(2 passes)
My comparison sled did not make it til the afternoon +5c (02 srx ,bender cold air kit, viper skid)
First run - i pulled him 4 lengths and held him off all the way down the strip.
i pulled 8300-8400 rpm sled worked fine (although conditions were slower)
second run similar
he did a helix change and we did a cuople runs ,i pulled him similarly but my sled felt like it was slowing down on top and i had an rpm drop
he put he old helix in and my sled continued to die up top my tch was going up to 8500 dropping to 8100 then creepy to 8200 and he was gaining up top
we did a roll on and i let him hit it first ,i caught and passed up to his ski tips at my tunnel ,he then (at over 100 on speedo) started to run away from me at at least 5-7 k more .my tach was running to 8500 down to 8100
i gps after our first run at 165 ,it gps at the end at 159
it's like it hits a wall all of a sudden. he rode it and he said it felt like dca was activting (no light though)
i ran down it solo and it ran up to 115 (speedo) and i ran out of room(2 passes)
My comparison sled did not make it til the afternoon +5c (02 srx ,bender cold air kit, viper skid)
First run - i pulled him 4 lengths and held him off all the way down the strip.
i pulled 8300-8400 rpm sled worked fine (although conditions were slower)
second run similar
he did a helix change and we did a cuople runs ,i pulled him similarly but my sled felt like it was slowing down on top and i had an rpm drop
he put he old helix in and my sled continued to die up top my tch was going up to 8500 dropping to 8100 then creepy to 8200 and he was gaining up top
we did a roll on and i let him hit it first ,i caught and passed up to his ski tips at my tunnel ,he then (at over 100 on speedo) started to run away from me at at least 5-7 k more .my tach was running to 8500 down to 8100
i gps after our first run at 165 ,it gps at the end at 159
it's like it hits a wall all of a sudden. he rode it and he said it felt like dca was activting (no light though)
Attachments
Last edited:
If he didn't get the light, either:
1) the bulb for the light is broken or:
2) it wasn't the dcs, but something else.
My guess is the viper skid.
1) the bulb for the light is broken or:
2) it wasn't the dcs, but something else.
My guess is the viper skid.
jmp2204
Member
he had the viper skid ,norwegian said:If he didn't get the light, either:
1) the bulb for the light is broken or:
2) it wasn't the dcs, but something else.
My guess is the viper skid.
you could feel my sled stop pulling after multiple runs ,it fellt very good at first but as we ran it fell off big on the top(in the pics i'm in the red with the blue helmet
He had the viper skid but your sled felt like it hit a wall?
Do you know what kind of a clutch set up he has?
Do you know what kind of a clutch set up he has?
jmp2204
Member
all stock .it's the same sled i referred to at the start of the thread