News:

Deals Gap 2024: Safety 3rd!


This year:  May 5-12th.  25th year!
(CLICK IMAGE FOR MEET INFO)

Main Menu

RD350B Kickstarter Slipping

Started by Viking, November 24, 2019, 03:29:31 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Viking

Does anyone know the typical reason why the kickstarter may be slipping?  Does the ratchet gear or the wave washer just get worn?  I did notice that the plate washer at the end of the shaft was missing - does that put pressure on the mechanism which holds the ratchet gear up against the starter gear?

OnlyCrimnson

Did you recently rebuild it?  Or was it working and then now does not?

Viking

I just rebuilt the top end so it has a bit more compression and replaced the clutch.

pdxjim

Drain the oil and pull the clutch side cover.

Put the kicker back on and gently push it thru with the plugs out and you should be able to see what's going on.
Wasting time on 2T forums since the dawn of the internet. '89 TDR250, '13 300xcw, '19 690smcr, '56 Porsche 356A

quocle603

Quote from: Viking on November 24, 2019, 03:29:31 PM
Does anyone know the typical reason why the kickstarter may be slipping?  Does the ratchet gear or the wave washer just get worn?  I did notice that the plate washer at the end of the shaft was missing - does that put pressure on the mechanism which holds the ratchet gear up against the starter gear?

Almost positive that plate washer is just a shim for the kickstarter.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

Greaser Greg

When I pulled my cover I saw that the spring had come out of position on the case.
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

quocle603

#6
Hmm. I've taken my clutch cover many times and have never had the kickstart spring come out. Did this issue occur before you replaced the clutch pads and plate?
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

SUPERTUNE

If you had the clutch apart,
I'm putting my bet on you didn't clock the pressure plate!
Pull off the cover AGAIN...then pull off the pressure plate and see if its not clocked with the timing mark on the inner hub.
Its a 3 right and 3 wrong as you put it on and the clutch is not even engaged.
You will find the clutch is not working too.
Go find the other post of the 6 and 7 plate discussion and you will see a late pressure plate picture that has the slash timing marks on it, there is 3 on it. Line up any one of those to the inner hub mark.
You stated you have a 75 B model that has a 7 plate clutch and is the clockable clutch.
Chuck
RD machine work, boring, porting, cranks and engine building.


Chuck 'SUPERTUNE' Quenzler III
Team Scream Racing LLC
1920 Sherwood St. STE A
Clearwater, FL. 33765
cqsupertune@tampabay.rr.com

Viking

I replaced the small engagement gear, the wave washer and added the final washer or shim and it works!

Now the left side won't fire with the new top end. I'm getting spark and the plug is wet.  Both lights on the Newtronic are pulsing...?

paul1478

76 Team Scream RD400
1993 FJ1200
2006 Goldwing
2022 Ducati V2 Panigale

m in sc

have you checked for spark with the plug out of the motor? if you have it there, theny ou probably just fouled it with assembly oil in the cyl/crankcase

Viking

Yeah, points cover was on. I checked the plug with it out and even replaced it.  I'll fiddle with it this weekend and see what I come up with.